OMM 1008-1 23
Compressor Controller
The compressor controller's primary function is controlling and protecting the compressor. No setpoints are
input to it. There is one compressor controller for each compressor on the unit. The compressor controller
receives, processes, and sends data to the unit controller, the compressor on-board microprocessors and to
external devices. With some operator intervention the compressor controller can operate the compressor if the
operator interface touch screen is unavailable. Inputs and outputs are as follows:
Table 9, Compressor Controller, Analog Inputs
# Description Signal Source Range
1
2 Spare
3 Motor Current 0 to 5 VDC 0 to 125% RLA
Table 10, Compressor Controller, Digital Inputs
# Description Signal Signal
1
2 Spare
3 Spare
4 Spare
5 Spare
6 Spare
7 Evaporator Water Flow Switch 0 VAC (No Flow) 24 VAC (Flow)
8 Condenser Water Flow Switch 0 VAC (No Flow) 24 VAC (Flow)
9 Spare
Table 11, Compressor Controller, Analog Outputs
# Description Output Signal Range
1 Spare
Table 12, Compressor Controller, Digital Outputs
# Description Load Output OFF Output ON
1
2 Spare
3 Spare
4 Spare
5 Spare
6 Spare
7 Spare
8 Inter Lock Solenoid Comp Disabled OFF Comp. Enabled ON
9 Spare
To Next Page
Loading...
