ew q t r y u i o !0!5 !1 !2 !3!6 !4 Operation Display Panel The basic operation of this unit is controlled through the operation display panel on the front of the product. Alarm This unit has 42 types of alarms as standard, and displays each of them by its alarm code on the PV screen with the [ALARM] lamp ([LOW LEVEL] lamp) lit up on the operation display panel. The alarm can be read out through communication. Code Alarm message AL01 Low level in tank AL02 High circulating fluid discharge temp. AL03 Circulating fluid discharge temp. rise AL04 Circulating fluid discharge temp. drop AL05 High circulating fluid return temp. AL08 Circulating fluid discharge pressure rise AL09 Circulating fluid discharge pressure drop AL10 High compressor intake temp. AL11 Low compressor intake temp. AL12 Low super heat temp. AL13 High compressor discharge pressure AL15 Refrigeration circuit pressure (high pressure side) drop AL16 Refrigeration circuit pressure (low pressure side) rise AL17 Refrigeration circuit pressure (low pressure side) drop AL18 Compressor running failure Code Alarm message AL19 Communication error AL20 Memory error AL21 DC line fuse cut AL22 Circulating fluid discharge temp. sensor failure AL23 Circulating fluid return temp. sensor failure AL24 Compressor intake temp. sensor failure AL25 Circulating fluid discharge pressure sensor failure AL26 Compressor discharge pressure sensor failure AL27 Compressor intake pressure sensor failure AL28 Pump maintenance AL29 Fan maintenance Note 1) AL30 Compressor maintenance AL31 Contact input 1 signal detection AL32 Contact input 2 signal detection AL37 Compressor discharge temp. sensor failure List of Function Code Alarm message AL38 Compressor discharge temp. rise AL39 Internal unit fan stoppage AL40 Dustproof filter maintenance Note 1) AL41 Power stoppage AL42 Compressor waiting AL43 Fan breaker trip Note 1) AL44 Fan inverter error Note 1) AL45 Compressor breaker trip Note 2) AL46 Compressor inverter error AL47 Pump breaker trip Note 2) AL48 Pump inverter error AL49 Air exhaust fan stoppage Note 3) Note 1) Does not occur on the product of water-cooled refrigeration type. Note 2) Does not occur on the product of power supply specification ‘-20’. Note 3) Does not occur on the product of air-cooled refrigeration type. * For details, read the Operation Manual. No. Description Function q Digital display (7-segment and 4 digits) PV Displays the circulating fluid current discharge temperature and pressure and alarm codes and other menu items (codes). SV Displays the circulating fluid discharge temperature and the set values of other menus. w [°C] [°F] lamp Equipped with a unit conversion function. Displays the unit of displayed temperature (default setting: °C). e [MPa] [PSI] lamp Equipped with a unit conversion function. Displays the unit of displayed pressure (default setting: MPa). r [REMOTE] lamp Enables remote operation (star t and stop) by communication. Lights up during remote operation. t [RUN] lamp Lights up when the product is started, and goes off when it is stopped. Flashes during stand-by for stop or antifreezing function, or independent operation of the pump. y [ALARM] lamp Flashes with buzzer when alarm occurs. u [ ] lamp Lights up when the surface of the fluid level indicator falls below the L level. i [ ] lamp Equipped with a timer for start and stop. Lights up when this function is operated. o [ ] lamp Equipped with a power failure auto-restart function, which restarts the product automatically after stopped due to a power failure. Lights up when this function is operated. !0[RUN/STOP] key Makes the product start or stop. !1[MENU] key Shifts the main menu (display screen of circulating fluid discharge temperature and pressure) and other menus (for monitoring and entry of set values). !2[SEL] key Changes the item in menu and enters the set value. !3[�云 key Decreases the set value. !4[��] key Increases the set value. !5[PUMP] key Press the [MENU] and [RUN/STOP] keys simultaneously. The pump starts running independently to make the product ready for start-up (release the air). !6[RESET] key Press the [�云 and [��] keys simultaneously. The alarm buzzer is stopped and the [ALARM] lamp is reset. No. Function Outline 1 Main display Displays the current and set temperature of the circulating fluid, discharge pressure of the circulating fluid. Changes the circulating fluid set temperature. 2 Alarm display menu Indicates alarm number when an alarm occurs. 3 Inspection monitor menu Product temperature, pressure and accumulated operating time can be checked as daily inspection. Use these for daily inspection. 4 Key-lock Keys can be locked so that set values cannot be changed by operator error. 5 Timer for operation start/stop Timer is used to set the operation start/stop. 6 Signal for the completion of preparation A signal is output when the circulating fluid temperature reaches the set temperature, when using contact input/output and serial communication. 7 Offset function Use this function when there is a temperature offset between the discharge temperature of the thermo-chiller and user’s equipment. 8 Reset after power failure Start operation automatically after the power supply is turned on. 9 Key click sound setting Operation panel key sound can be set on/off. 10 Changing temp. unit Temperature unit can be changed. Centigrade (°C) ⇔ Fahrenheit (°F) 11 Changing pressure unit Pressure unit can be changed. MPa ⇔ PSI 12 Data reset Functions can be reset to the default settings (settings when shipped from the factory). 13 Accumulation time reset Reset function when the pump, the fan or the compressor is replaced. Reset the accumulated time here. 14 Pump operation mode set The fluid supply mode of the pump can be changed Pressure control mode ⇔ Frequency set mode 15 Anti-freezing function Circulating fluid is protected from freezing during winter or at night. Set beforehand if there is a risk of freezing. 16 Warming-up function When circulating fluid temperature rising time at starting needs shortening during winter or at night, set beforehand. 17 Anti-snow coverage function If there will be a possibility of the snow coverage due to the change of the installation environment (season, weather), set beforehand. 18 Alarm buzzer sound setting Alarm sound can be set to on/off. 19 Alarm customizing Operation during alarm condition and threshold values can be changed depending on the alarm type. 20 Communication This function is used for contact input/output or serial communication. For details, refer to the Operation Manual. Please download it via our website, http://www.smcworld.com 20 Thermo-chiller Inverter Type Series HRSH