Eliwell EWCM 4150 - 4) PWM;Open Collector Outputs AO1 and AO2

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Polarity is defined below:
Value Type Description
+ Positive Active when contact closed
- Negative Active when contact open
If multiple outputs are configured to run the same resource, the outputs will be activated in parallel.
4) PWM/OPEN COLLECTOR OUTPUTS AO1 AND AO2
The device has two outputs, configurable as PWM or open collector, which pilot the fans/continuous compressors
(via the CFS modules), if configured as PWM, or another resource via external relay if configured as open collector
(On/Off).
The AO1 output is always present whilst the AO2 output is present on models 4150 and 4180 only.
Parameter Description M.U. Min Max
CF34 Enable analogue output AO1 num 0 1
CF35 Enable analogue output AO2 num 0 1
CF37 Analogue AO1 output phase shift num 0 90
CF38 Analogue AO2 output phase shift num 0 90
CF40 Analogue AO1 output pulse length (1 unit=69.4 μs) num 5 40
CF41 Analogue AO2 output pulse length (1 unit=69.4 µs) num 5 40
CF43 Analogue AO1 output configuration num -24* 26*
CF44 Analogue AO2 output configuration num -24* 26*
CF51** Configuration of digital AO1 output num -24* 24*
CF52** Configuration of digital AO2 output num -24* 24*
* Values from 16 to 22 are not used.
** Parameters CF51 and CF52 represent the logic assignment of outputs AO01 and AO02 if configured as digital
outputs.