KGL Operating Manual – VS 3010 BS
2018-07-02
/
97 178
3. Analogue compressor speed / fan speed correcting variable
A 0-10 V signal for the speed of the condenser fans is output via the analogue output 1. A 010 V signal for the
speed of the Z1/Z2 speed-controlled compressors is output via the analogue outputs 2/3.
Fans: Analogue output 1 (terminals 53/54)
Compressor Z1: Analogue output 2 (terminals 55/56)
Compressor Z2: Analogue output 3 (terminals 57/58)
Special precautions must be taken for the connection of the analogue outputs; see chapter
assignment of the analogue outputs, page 113
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 controller here must be operated in the speed control operating mode, i.e. the output speed of the fans /
compressors is directly proportional to the output voltage from the pack controller.
4. Relay output for power supply bridging
It must be strictly ensured that the power supply bridging is also realised in the switch cabinet or that
the power supply bridging function is deactivated by setting the parameter tc-Max. to "—", otherwise
no more fan capacity is available in the case of too high tc!
A. For speed-controlled condenser fans
The relay output for fan stage 2 (terminals 28/25) is used for bypassing the FC / speed controller for the speed-