ECKELMANN VS 3015 CT, Инструкция по эксплуатации, Страница: 128 / 219

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3. Analogue compressor speed / fan speed correcting variable
A. Correcting variable output for fan speed
In the case of continuous control, a 0-10 V signal for the speed of the fans is output via the analogue output 2 of
the Modbus analogue module (terminals C2/2 see Terminal assignment of the Modbus analogue module 0..10
V DC ).
B. Correcting variable for compressor speed output
In the case of compressor combined control, a 0-10 V signal for the speed of the speed-controlled NT
compressor is output via the analogue output 2 of the basic module (terminals 55/56).
The 0-10 V signal for the speed of the LT compressors is output via analogue output 1 of the basic module
(terminals 53/54). The 0-10 V signal for the speed of the parallel compressors (MP compressors) is output via
the analogue output 1 of the Modbus analogue module (terminals C2/1, see Terminal assignment of the
Modbus analogue module 0..10 V DC ).
For the frequency converter, an adjustment of the operating point of the FC / speed controller must be made in
addition to the adjustment of the input to the reception of a 0-10 V signal. A request of the pack controller of 0 V
at the analogue output here means minimum speed; a request of 10 V means maximum speed. The FC / speed
Special precautions must be taken for the connection of these outputs; see Terminal assignment of the
analogue outputs .
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