1 9 To the Thermo-chiller Customer’s machine side SD+ SG SD. 2 3 5 To the Thermo-chiller Customer’s machine side RD SD SG 5 4.7 kΩ To the Thermo-chiller Customer’s machine side 24 VDC Alarm signal Run/Stop signal Operation status signal Remote signal 24 VCOM (0.5 A MAX) Not set when shipping from factory 24 VDC output 24 VCOM output 1 kΩ 4.7 kΩ 1 kΩ 10 6 12 11 9 8 7 5 4 3 2 1 Settings at the time of shipment from the factory (Customers can modify the settings.) Run/Stop Circulating fluid temperature setting (SV) Writing Circulating fluid present temperature (PV) Circulating fluid discharge pressure (SV) Electrical resistance .1 Status information Alarm occurrence information Readout Internal circuit Internal circuit Internal circuit Communication Function Serial Communication The serial communication (RS-485/RS-232C) enables the following items to be written and read out. For details, refer to the Operation Manual for communication. MC 1,5/12-GF-3,5 Photocoupler 24 VDC 21.6 VDC to 26.4 VDC 5 mA TYP 4.7 kΩ 48 VAC or less/30 VDC or less 500 mA AC/DC (resistance load) 10 mA 5 VDC 24 VDC ± 10% 0.5 A Max Item Connector type (to the product) Output voltage Input signal Contact output signal Circuit diagram Insulation method Rated input voltage Operating voltage range Rated input current Input impedance Rated load voltage Maximum load current Minimum load current Specifications . The pin numbers and output signals can be set by the customer. For details, refer to the Operation Manual. . The terminal resistance of RS-485 (120 Ω) can be switched by the operation display panel. For details, refer to the Operation Manual. Do not connect other than in the way shown above, as it can result in failure. D-sub 9-pin, Female connector Modicon Modbus compliant/Simple communication protocol Item Connector type Protocol Standards Circuit diagram EIA standard RS-485 EIA standard RS-232C Specifications Contact Input/Output Please download the Operation Manual via our website. http://www.smcworld.com .1 When optional electrical resistance sensor set is used Series HRS A 1298