Standard and Advanced PLC Screen
The Standard PLC Screen are have Chilled water pumps variable 1 to 3 process pumps and recirculation pumps. In systems with multiple pumps, they may be altered at specific intervals. The standard PLC Screen also has Network capability over DH-485 to communicate with a chiller with the Advanced Control Package. The Advanced PLC Screen has alarm condition indicators for safety devices including motor overloads (compressor or pump), flow switches, freezestats, refrigerant pressures, voltage/phase sensor, high and low temperature alarms. The Advanced PLC also comes with hour meters to accumulate run time in compressors or pumps. Chilled water pumps: Variable 1 to 3 process pumps and recirculation pumps. In systems with multiple pumps, they may be altered at specific intervals.
- Standard PLC Screen: Control up to 4 compressors in 1 or 2 circuits. or pumps
- Standard PLC Screen: Alarm condition indicators for safety devices including motor overloads (compressor or pump), flow switches, freezestats, refrigerant pressures, voltage/phase sensor, high and low temperature alarms.
- Standard PLC Screen: Hour meters to accumulate run time in compressors or pumps.
- Advanced PLC Screen: Cooling Tower Fans: Variable 1 to 4 fans, to be controlled with PID algorithm. Operator may choose to alternate the fans at specific intervals.
- Advanced PLC Screen: Cooling Tower Pumps: Variable 1 to 3 process pumps and recirculation pumps. In systems with multiple pumps, they may be alternated at specific intervals.