ABB ACS880+N5350 User Manual page 93

Cooling tower drives
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Check/adjust the following parameters.
12.15 AI1 unit selection
Set this to either mA or V corresponding to the setting of jumper J1.
12.17 AI1 min
12.18 AI1 max
12.19 AI1 scaled at AI1 min
12.20 AI1 scaled at AI1 max
The default input for speed reference is analog input AI1. (This is controlled by the parameters in group 22.)
Parameters 12.17 and 12.18 set the low and high limits of the analog input signal. Scaling parameters 12.19
and 12.20 define the internal signal levels that correspond to these limits as follows:
The corresponding parameters for analog input AI2 are 12.27 - 12.30.
13.12 AO1 source
13.17 AO1 source min
13.18 AO1 source max
13.19 AO1 out at AI1 src min
13.20 AO1 out at AI1 src max
Parameter 13.12 selects the source for analog output AO1 (by default, motor speed in rpm).
Parameters 13.17 and 13.18 set low and high source signal values that correspond to the actual analog output
values defined by parameters 13.19 and 13.20.
12-14 Startup Assistant & Parameters
Table 12-2 Drive Assistant
3AXD50000011888

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