FAQ

• 

• 3/4/5 Port Solenoid Valves
• Fieldbus System/
  Serial Transmission System
• Air Cylinders
• Auto Switches
• Rotary Actuators
• Vacuum Equipment
• Air Dryers
• Regulators
• Modular F.R.L.
• Boosters
• Auto Drain
• Fittings
• Pressure Switches
• Flow Switches
• Process Valves
• Chemical Liquid Valves
  (Fluoropolymer Equipment)
• Temperature Control Equipment
• Electric Actuators

WEBCatalog Instruction Manuals Contact Us

　

|3/4/5 Port Solenoid Valves

Why does a 5 port solenoid valve not work correctly with low pressure (0.1 MPa)?

What are the differences between metal and rubber seals fitted to valves?

In the WEB catalogues on the SMC homepage there are some product with "10-" and "25A-" before the series. What does this mean?

Is the SYJ series interchangeable with the VJ series?

What is the difference between the conventional SY series and the new SY series?

What is the part number for the SY series connector assembly with L / M type plug connector?

What is the assembly number of the blanking plate for SY manifold (SS5Y∗)?

When connecting SY solenoid valves to DC voltage, are the connections polarity sensitive?

What is the O.D of the outer sheath and the cross section of the conductor for the lead wire of the solenoid valve?

Regarding SY series DIN terminals, what is the difference between D and Y?

Using the HP ""CAD Data Search"" feature, how can the 2D-CAD data for the SY5140-5LZ-02 be found?

We use SY5120-1G-C6 but we began to notice air leakage from the EA port. It has been used for 5 years as a cylinder drive.

In the code VF3130-1G1-02, what is the meaning of the 1 after the '1G'?

What changes have been made to VF1000, 3000 and 5000 series after the model changeover?

How should I use the external pilot type (Pilot type R) in VP300/500/700 series?

Is there polarity for connecting electrical wiring to the DC type of the VP300/500/700 series?

How can I change N.C. valve type to N.O. type in the VP300/500/700 series?

What is the part number of the connector assembly for the part number VP542-5MOZ1-03A?

What is the meaning of: "a single valve with 6 valve functions (universal porting type)" of the VT3∗∗ series?

How should I configure piping of the VT307V series in the vacuum line in order to hold the work piece when energised and release the vacuum when de-energised?

Where can I find VO307 on the SMC website.

What is polarity of the VT3∗∗ series (DC type)?

|Fieldbus System/Serial Transmission System

Could you tell me how to find EDS files (e.g. Setup files) of SI units?

I want to attach termination resistors to an SI unit?

|Air Cylinders

What is the theoretical output of the cylinder?

What is the A stroke/B stroke of the dual stroke cylinder/single rod type (-XC11)?

Is it possible to operate 2 (or more) cylinders simultaneously?

What is the difference between a magnet type rodless cylinder and a mecha-joint type rodless cylinder?

What is the function of the cushion valve on air cylinders?

What do the horizontal lines on the cylinder stroke chart on the CAD data mean?

In the WEB catalogues on the SMC homepage there are some product with "10-" and "25A-" before the series. What does this mean?

Is the seal set for the CA1 cylinder available?

What is the difference between the CA1 cylinder and CA2 cylinder?

CA2B80-50Z does not have a magnet on its piston. Does this mean it is impossible to use auto switches with this cylinder?

Are there any double clevis fittings for the CQ2D20-25DM?

We are going to replace CDQ2B50-30DC-A73 during maintenance. What should we do to attach a D-A73 autoswitch to an existing CQ type cylinder, without changing this autoswitch?

We were informed by supplier that a switch is not included with the CDQ2B20-10DZ-M9B. Why is this?

We want to replace the seals. What is the part no. of seal kit for CQ2B50-30DC?

We would like to replace CDQ2B32-30D during maintenance. What is the part no. of the current product, which is a replacement?

We would like to download the 2DCAD data for CQ2_40Ф, but only CQ2-Z is available. Is it all right to use it?

Is a procedure available to replace the dust seal band of the MY* series?

Is the intermediate stroke of the MY∗ series available with the special exclusive body or is the stroke adjusted by using a spacer?

How do you configure a circuit in order to achieve intermediate stops of the mechanically jointed type rodless cylinders (MY∗ series) by using valves.

What are the differences between the MY series?

Have the CY1B and CY1S already completed a model change?

For CY1S-Z which replaces CY1S, is it necessary to select the type of magnet holding "H" or "L" on the model number?

Why does the carriage of the CY1S product operate completely to one end of the stroke, but at the other, stops before reaching the end?

Is it possible to produce intermediate cylinders for CY∗ series?

|Auto Switches

Should I use a 2 or 3 wire type solid state auto switch?

What is the current model type of the old type D-F9B autoswitch?

We would like to purchase an auto-switch only for the CDQ2B32-30DMZ-M9BW cylinder. Which auto-switch models can be ordered as stand-alone products?

There is a product number on the D-M9B auto-switch part and after this there is 3 alphabetical letters. What do these 3 letters mean?

Please give the part number suffixes for auto switch lead wire lengths of 0.5m・3m・5m.

Please tell me the auto switch labelling methods for the pre-wired connector accessory and pin layouts.

What is the flex resistance of the cable for autoswitch D-M9∗ series?

What are the detailed specifications of the cable (lead wire) for D-M9□ series solid state autoswitch？

Please tell me the auto switch operating range.

What is the difference between the standard product and the improved water resistance auto switch?

What is the difference between reed and solid state auto-switches?

Please tell me the auto switch wiring method.

I would like to mount an auto switch to a cylinder with a built-in magnet. Where in the catalogue are the auto switch mounting bracket part numbers listed?

Where is the cylinder auto-switch in the WEB catalogue? This is to confirm the auto-switch specifications.

Are there 2 kinds of auto switches D-M9□, round lead wire and oval lead wire ?

|Rotary Actuators

What should be selected as an angle adjustment unit if we want to mount it on the CRB2, CRBU2, and CRB1series later?

What is the backlash of the rotary actuator (rack and pinion type)?

We cannot rotate the CDRB2BWU series by hand or even if we are applying pressure. What is the problem?

If we want to adjust the angle to 180゜with the CRB2BWU sizes 10 to 40, do we need to select the 270゜rotating angle type?

Can we replace the packing of CRB, rotary actuator vane type as internal leakage is increasing.

Where can we find the effective torque and air consumption of the CR∗/MS∗ series?

Do you have model selection software for the rotary actuators?

Can we stop the rotation by using the (closed center) valve?

Can we change from the MSQ∗ sizes 10 to 200 A (adjustment bolt type) to the MSQ∗ sizes 10 to 200 R (internal shock absorber type)?

The MSQ∗30A rattles when we adjust the angle to 90゜and apply external force at rotation end against rotation movement. Is it backlash of the gears?

Do you have a product that can rotate 90゜to both the right and left sides?

|Vacuum Equipment

What are the selection criteria for ejectors?

How often should the vacuum pads be replaced?

Is there a compact ejector unit which could be placed on moving parts?

Can ejectors be used in an environment where water droplets may be sucked up?

Can fluid be recovered using an ejector?

Is there an ejector suitable for dust recovery?

Are there any product with the set screw piping in IRV series?

How can it possible to mount a KQ2 product to the point where the gauge of IRV should be mounted? It is hexagon shape without ridges.

I want to know how to wire the supply valve and the release valve of the ZK2 series.

I want to know how to wire the pressure sensor/vacuum pressure switch of the ZK2 series.

In the case of a ZK2 series product with energy saving function, how can I turn ON the suction command signal?

I want to know how to set a vacuum pressure switch on a ZK2 series product.

I want to know the details of control of the ZK2 series ejector with energy saving function.

Is there is way of canceling the energy saving function of the ZK2 series ejector with energy saving function?

What do you mean by saying that the supply valve of the ZK2 series is self-holding/release valve linked?

|Air Dryers

What is the evaporation thermometer on air dryers?

I would like to turn off the IDF/IDU series when it is not being used, in order to save standby power. Is there anything I should be aware of?

We would like to see the old air dryer catalogue to check the specifications.

How should I select air dryers?

What is the terminal layout and electrical wiring diagram of Option 1 (with terminal block to fetch operation/error signal) for IDF∗E/IDU∗E series?

|Regulators

What is the bleed of precision regulator IR?

I have a question regarding the precision regulator IR series. The supply pressure is 0.5 MPa and the set pressure is 0.2 MPa, however, air is leaking from a small hole in the main body.

What does the sensitivity "within 0.2% of full span" in the catalog specification in Precision Regulator IR series mean ?

Is it possible to mount an IR1000/2000/3000 product in a panel mount?

Is it possible to install an IR series product between the cylinder and the solenoid valve?

What is the difference between the IR, IR-A and ARP precision regulators?
In addition, what is the difference between the IR-A regulators (IR1200-A/IR2200-A/IR3200-A)?

How can the AF40-03-A and AFM40-03-A modularly connect with an IR3000-03-A (or IR3200-03-A)?

Are there any product with the set screw piping in IRV series?

How can it possible to mount a KQ2 product to the point where the gauge of IRV should be mounted? It is hexagon shape without ridges.

Does ITV has a gauge port?

There is a buzzing noise from the ITV when the power is ON with no air supply or no input signal. What is the problem?

What does "Er.1 (Error 1)" of ITV2030-222BS mean and how can we solve it?

Is there a power cable, other than the standard 3-meter long cable, available with ITV1000 to 3000 series?

Is a cable connector enclosed with the CC-Link and DeviceNet ITV?

Can we install an ITV unit between a cylinder and solenoid valve?

There is a caution statement that "OUT pressure will be retained temporarily when the product is in a controlled state even if the power is cut off". What does it mean?

What is the M5 threaded hole at the front of the ITV20∗∗/30∗∗ for?

Which (ITV2000 or 3000) does SMC recommend if we want to deliver pre-set pressure only?

What is the minimum outlet pressure resolution of ITV2010?

|Modular F.R.L.

How can we replace the case assembly of the modular F.R.L units?

What is the part No. of the filter element of the AF unit for the AC modular units?

Can we mount a round face pressure gauge later on the regulator for the AC∗∗ modular units?

How can we order the cross spacer, piping adapter and pressure switch with piping adapter as an attachment for the AC modular units?

Is there any limitation of the mounting orientation of the AC modular units?

During the model selection of the AC modular units, how should we determine if the lubricator is necessary or not?

Could you tell me when the AR regulator series was redesigned and released?

Do you have a non-grease type or oil-free type for the AR regulator?

Why is a set nut not supplied together with AR regulator of the part number AR∗∗-∗∗-A?

Could you tell me when the AF filter series was redesigned and released ?

Can I attach elements of the old AF and AFM products to the new products?

Is there interchangeability if we want to replace a part of the 2-digit conventional modular units with a refresh unit during maintenance work?

We would like to replace a regulator of AC 10-60 unit during the maintenance. We want to mount the new AR∗-B (-B at the end of the model. No) Are they interchangeable?

How can the AF40-03-A and AFM40-03-A modularly connect with an IR3000-03-A (or IR3200-03-A)?

In the WEB catalogues on the SMC homepage there are some product with "10-" and "25A-" before the series. What does this mean?

|Boosters

What is the construction of booster regulator (valve) ?

Can the maintenance kit for VBA4100 supplied?

How can we select the booster size （VBA）?

We are increasing the pressure to drive a cylinder by using VBA20A. Is it possible to secure 0.8MPa on the outlet side when the inlet pressure is 0.4MPa?

We would like to replace old type VBA booster regulators with new replacement models.

Is there How to Order for the combination for booster regulators (VBA）and air tank （VBAT)?

Air leakage can occur constantly either from (1) the silencer or (2) the lower part of the handle of our booster valve which has been in use for many years.

|Auto drain

What is the difference between N.O (Normally Open) type and N.C. (Normally Closed) type of float auto drain ? Which type should I select ?

|Fittings

Is it possible to use KQ2 series with water as fluid?

What is the difference between the existing KQ2 series and refreshed KQ2 series?

What is the difference between KQ2H06-01AS and KQ2H06-01NS?

KJ series has been integrated into the new KQ2 series. What are the existing model no. of KJL04-M3 and KJL06-01S?

Is there a black body available in new KQ2 series?

We want to use φ8 and φ12 tubes inside and outside of the panel. Are there bulkhead fittings with different diameters available?

Figures 8 and 5/16 are imprinted on the release bushing of KQ2 as well as SMC marking. What do these two figures mean?

Is it possible to connect metal tubing (SUS, copper tubing, etc.) to one-touch fittings?

What is the tightening torque of the connection thread for KQ2 series one-touch fittings?

Are there fittings for mm size tubing and with NPT connection thread?

Are there fittings resistant to 100℃ heat?

Is it possible to rotate the body of KQ2L and KQ2Twhere tubing is inserted after tightening the connection thread?

|Pressure Switches

Are there any instructions of setting ZSE/ISE30A, 40A and 80 avilable ?

What is the display resolution in ISE30A? What is the display resolution in ZSE30A(F)?

How should ISE30A be used only to indicate numerical values?

Is calibration for the pressure switch available?

What is the sampling cycle for the digital display?

How can I stop displaying Hi and figure alternately?

Is a pressure switch with an IP65 enclosure available?

Can the 2-colour display of ISE30A/40A/80 series be set from the status of OUT2?

Is there any rule for the hysteresis setting?

What is the auto shift function for ZSE80?

When using the ZSE80 only for confirmation of pressure, is there any way to prevent the OUT1 and OUT2 indicators on the display flashing?

What is 1 digit?

Is pressure switch with the absolute standard available?

How can Zero Clear Function be used for display in ISE/ZSE?

How can ISE10/30A/40A/80 series be set back to the default (factory default) ?

Vacuum pressure switch, ZSE series can reach out of the applicable pressure due to vacuum break (purge). Isn't it broken?

|Flow Switches

Are there any instructions of setting PF2A, PF2W and PF2D avilable ?

Regarding PF2A series, is the displayed value (L/min) standard or normal one?

If the PF2A721 is in window comparator mode, and the hysteresis is 3 digits what flow rate is this equivalent to? Also what is the resolution of the displayed flow rate when in instantaneous flow mode?

When PF2A712H-20-28M indicates "---", which action should be taken?

How should we carry out wiring when using PF2A7 series just to check the flow rate display?

What is the diameter of straight piping of IN side?

Do you have detailed data concerning the flow rate and temperature setting for the PF3W series?

I am currently selecting an integrated display type of the PF3W series. Can the PF3W7 series only provide an analog output for either flow rate or temperature?

What is the relationship between the analog output and the flow range of the PF□ series?

“Troubleshooting” is set out in the operation manual that comes with a PF□ series product, but do you have detailed data concerning troubleshooting?

I wish to select a flow sensor. Is there an easy selection method?

Can I use a fluid (gas) other than dry air in a PF□ series product?

Can I use a fluid (liquid) other than water in a PF□ series product?

Are there PF□ series products with lead wires that are longer than the standard ones?

Please tell me how to wire PF□ series products.

Roughly what length of straight pipe should be used on the IN side of a PF□ product?

Is it possible to install a PF□ series product vertically?

Is the flow rate display of the PF□ series product for air converted into atmospheric pressure (standard condition)?

What kind of output is the accumulated output mode and the accumulated pulse output mode of the PF□ series?

In the PF3W711 type, the P_1 setting (normal output and hysteresis mode) cannot be reduced to
12 L/min or less. Why?

What is the order of accuracy of the PFMB7 series?

Can I use a PF□ series product on the flow rate display alone, without using the switch function?

The letters [HHH] are indicated on the PF□ series product. (In the case of PF2□, [---] is indicated.)

|Process Valves

What is the operating pressure differential of a 2 port valve?

What is the difference between the valve types N.C. and N.O. in the catalog for VX2 ? 　Also, how does the body material 'Al' differ from 'C37'?

Does the body have any indication for showing direction of flow in VX?

When VX2∗4 is used in vacuum, which port should the vacuum pump be connected with?

Is it possible to adopt C37 or SUS body when New VX2 is used for air?

Is there any applicable 2 port valve with the port size Rc3/4 in VX series to perform air blow?

What is the polarity to wire the VX product (2 port solenoid) at DC24V?

We are considering using VX product energizing for a long time. Would it be no problem, if we will pay attention to heat of the body?

Is it possible to use VX3 product with 3 port valve as a divider valve? 　Fluid: water

Where in the SMC website is catalog for discontinued 2 port valves located?

I want to select a 2 port valve. Is there any data available for selecting an appropriate valve?

What is the meaning of the numbers and letters of the alphabet in How to Order of the new VX2, VXD and VXZ series?

What is the power consumption of the new VX2, VXD and VXZ series?

When I inquired about the existing VX2330 for use with air that is currently being used, I was told that it was the same as the VX222A. The catalog states that this product is for use with water. Is it possible to use the VX222A series, which has a brass body, for use with air? Also, is there any difference in the amount of air leakage from a valve with an aluminum body compared to one with a brass body?

I purchased a VX230GA and installed it in order to use it for an air blow, but air did not come out from the secondary side. The factory air pressure is 0.4 MPa, and voltage is applied, but the valve does not open. When I disconnected the primary side air piping, the valve opened. Is the supply pressure too high? Does this trouble occur because the maximum operating pressure difference of the VX230GA is 0.1 MPa?

What are the part numbers of the new VX2, VXD and VXZ series with bracket?

Can I install a bracket on the new VX2, VXD or VXZ series after purchasing it?

Please tell me how to wire the new VX2, VXD and VXZ series.

What will happen if the pressure on the OUT side of a VX series 2 port N.C. type valve becomes higher than the pressure on the IN side?

Is there any restriction on the mounting orientation of the VX□ series?

I would like to change the electrical entry direction of the new VX2, VXD and VXZ series.

|Chemical Liquid Valves (Fluoropolymer Equipment)

Can I press fit an inch size tubing with a specialized tool of the LQ1 series?

Is a specialized jig required when piping a LQ1 or LQ3 product?

I bought an insertion tool for the high-purity fluoropolymer fitting. Could I have any information for press fitting methods?

Which pilot ports should I use for the valve types, N.C., N.O. and Double acting, in the LVA, LVC and LVD series?

Is there any restriction on the mounting orientation of the LVA, LVC and LVD products? I would like to mount these products horizontally on the wall.

A resin material is used for the female threaded part of the resin body types PPS and PFA in the LVA products. Can I use a metal thread fitting for mating with the resin thread types?

What is the suck back valve in the LVC23 series?

|Temperature Control Equipment

In what section of the operation manual of the HRS series are there details of serial communication (RS232C, RS485)?

It is stated that the circulating fluid used in the HRS series is tap water or 15% ethylene glycol aqueous solution. Can I use town water or deionized water?

Is the D-sub connector for communication with the main body of the HRS series male or female? Also, what is the size of the screws used to fix the D-sub connector?

With the HRS series, the circulating fluid is set to a temperature of 30℃. However, the temperature of the circulating fluid does not stabilize. The set environment and power source are within the range of the specifications.

Is it possible to adjust the circulating fluid discharge flow when using the HRS series?

What is the recommended capacity of the earth leakage breaker to be installed when using a HRS series product?

Does SMC handle 15% ethylene glycol aqueous solution?

Can I directly flow fluid whose temperature I wish to control (e.g. cutting oil, seawater, etc.) from the return port of the chiller to the discharge port?

Is it possible to control the temperature with the HRS series, using tap water in an open type external tank as the circulating fluid?

The alarm lamp on the HRS□□ flashed, and the alarm No. AL□□　appeared. What is the nature of this alarm?

How do you turn the HRS□□ ON/OFF by remote operation?

|Electric Actuators

Could you tell me how to select the positioning operation or the pushing operation when entering the step data with PC to LECP6/LECA6?

When selecting the Normal mode or the Easy mode of setting software of LECP6/LECA6, the setup software returns the following error messages.
∗ Normal mode
The COM port setting may be wrong!
∗ Easy mode
No communication to the controller. Edit communication setting?

I could not turn the servo motor ON to operate an actuator when setting up LECP6/LECA6.

When using the LECP6 and LEFS units, are sensors required for the return to the origin?

When shutting off the power supply to the controller LECP6/LECA6 and then resupplying the power to the controller, is it necessary to perform the return of the origin?

According to the instruction manual of LECP6, the power is separated into the control power and motor power. Why are there two types?

How can I stop electric actuators with the controller LECA6?

I tried to change the direction of the return to origin with the controller LECP6, but the direction was not changed.

Regarding actuators with locks, is the 24VDC for releasing the lock required during normal operation by the LECA6/LECP6 controllers?

We started to test an LE∗ electrical actuator, but it doesn't function (strange movement) The driver is LECPA（pulse input type step motor driver）.

We are setting the control side of LEC∗6 electrical actuator. We are working on setup with LEC-G（gateway unit）, but communication is not possible. Can you please explain?

How can step data numbers be input from the PLC?

Is it possible to the return to origin operation repeatedly with LECP6/LECA6?

Is it possible to switch to the another step data operation during positioning operation without stopping when using In LECP6/LECA6 controllers?

Is it possible to change the return to origin direction for LECP1 controller?

Is it possible to switch to the next operation during positioning operation without stopping when using LECP1/LECP2 controller?

I cannot manually move the slide table of an actuator with a controller unconnected. Is there a way to do this?

In step motor type LE series, if the position of a slider such as the table is displaced with external force, will the set value of the next target position be also changed?

Can the controller configuration software (LEC-W2) be downloaded from the homepage?

Why is an alarm generated when commanding a "SETUP" request (return to origin) 1 second after SVON (servo on)?

Is it necessary to wire IN0 to IN3 inputs fully for the LECP1?

I have a controller setting software only. Can I connect the controller to my PC if using a commercially available connection cable?

What is the difference between "RESET" input and "STOP" to stop the actuator during normal operation?

Is it possible to detect the size of work pieces by pushing force mode of the LECP6? Is it all right to use INP output for this?

Is there a homing sensor built into the LE series?

What kind of processing is applied to the terminal of upper equipment (PLC side) of I/O cable （LEC-CN5-∗）?

Are there any actuator cables other than robot cables?

What kind of signal is 'SVRE' signal for LECA6/LECP6/LECPA?

Is a teaching box or controller setting kit required for LECA6/LECP6/LECPA?

Is it possible to operate LECA6/LECP6 so that it could be stopped during positioning operation of step 0 and then changed to execution of step 2?

What kind of signals do LECA6/LECP6 send out during positioning operation?

Arrival time abnormal' (1-149) is generated during thrust operation. What is the reason?

SVRE signal does not output from LECP6/LECA6 controller （Servo does not turn ON.）

When SVON signal is turned ON after applying power to the LECA6 controller, the actuator moved about 10mm. Why does it move?

What is the cable bending radius?

When the power supply is turned on again with the control power supply ON after returning to origin, is it necessary to return the actuator to origin again?

When the actuator is mounted vertically, will the table (rod) drop by its own weight?

Is it possible to rotate LER table physically by rotating the table?

We are going to change our actuators to those with a different size and stroke. Therefore, we also want to change the actuator applicable to the controller. Please tell us how to change.

Is there any problem if we want to mount LEF series actuator horizontally on the ceiling ?

When driving a step motor type actuator, will a dedicated controller be required?

I connected LECA6/LECP6 to PC using a controller setting kit but they don't become online. (Communication is not possible.)

Is it possible to switch LECA6/LECP6 actuators to a backward movement while they are moving forward?

What will happen if an electrical actuator is brought to an emergency stop during operation (EMG was put into a non-energised state)?

We purchase 'products with lock' because we use them vertically. How will the lock work when a product is bought to an emergency stop during operation (EMG was put into a non-energised state)?

How is the lock controlled in electric actuators with lock?

How does the electrical actuators thrust type return to origin work?

Please tell me the difference between positioning operation and thrust operation of electrical actuators.

What will happen if 'step no. IN∗' and 'DRIVE' are instructed at the same time in positioning operation?

What is thrust operation?

What is the difference between ABS (absolute) and INC (incremental) in 'operation method' in step data?

What is an area (output) signal?

How can I change the electrical actuator 's original point from the return end (motor side) to the starting one (Opposite to the motor side)?

How can I change the basic parameters after changing the electrical actuator's direction of return to origin? (Even if an address is specified, it doesn't operate and an alarm is generated.)

As the 〔ALM〕 on the controller turned on, I check the alarm description on PC (or teaching box). The position deviation counter indicated overflow 1-196 (or deviation overflow). What does this mean?

As the 〔ALM〕 on my controller turned on, I checked the alarm description on PC (or teaching box). It indicated 1-149 which means Failed to reach the target within set time. What does this mean?

As the 〔ALM〕 on my controller turned on, I checked the alarm description on PC (or teaching box). It indicated 1-192 (or encoder error). What does this mean?

As the 〔ALM〕 on my controller turned on, I checked the alarm description on PC (or teaching box).
It indicated 1-193 which means phase detection was not possible within time (or magnetic pole undetermined). What does this mean?