Service Monitor User Manual
Danfoss Turbocor Compressors Inc.
11
ECD-00007M Rev. 1
4.1.3 Analog Output Setup
The compressor features a universal analog output for load
balancing valve, IGV position, discharge pressure, etc. The
operating range can be set to 0-5V or 0-10V via jumpers on
the Chiller Interface module.
Figure 10 shows a typical application for the analog output.
In this example, the analog output from the Chiller Interface
module is connected to a 3-way valve that channels chilled
water to a cooling coil. A temperature sensor at the cooling
coil is connected to the Leave terminals of the Chiller
Interface module. The analog output controls the amount of
chilled water entering the cooling coil based on the air
temperature setpoint.
Configure the analog output as follows (Refer to Figure 11):
1.
Select the control mode for the analog output. The
selection determines which control variable will be the
source for the 0-10vdc output (at the ANALOG output
terminals on the Chiller Interface module). The options
are:
• Load Balance
• HP
• IGV
• Auto
• Superheat - Flange TP
• Superheat - FlangeP, EWT
• Superheat - FlangeP, LIQT
• Suction Pressure.
• Leaving Temp
• Entering Temp
• Liquid Temp
Figure 10 Analog Output Application Example