User Manual

Hardware IO connection
Analog DC 0...10 V/PWM outputs
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Connection example
The following illustration shows an example of the high-pressure switch to lock the
compressor.
HP-SW High-pressure switch
K Command to compressor relay
The high-pressure function operates as follows:
When.. Then..
HP-SW opens
The compressor relay is no longer energized, so that the compressor shuts down
regardless of the control action.
The controller detects the open status of HP-SW on DL1 and drops relay Q2,
thereby deactivating the command to the compressor relay.
HP-SW closes
The controller logic keeps the compressor off in accordance with the programmed
functionality of the application.
4.7 Analog DC 0...10 V/PWM outputs
Use
The configurable outputs of a POL46X controller can be configured to output a DC
0…10 V analog or PWM signal.
Connection example
The following illustration shows the position and identification of the configurable
outputs of a POL46X controller.
Programming details in application
The 0…10 V analog output resolution is mV. Duration of PWM output can be set to
0…100% with a frequency of 500…2.5k Hz.