ECKELMANN VS 3015 C, Инструкция по эксплуатации

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VS 3015 C
Relay number S1 S2 S3 S4
Meaning GS1 LS2 LS3 GS4
1 X X X X
2 X X X
3 X X
4 X X X
5 X X
6 X
The number of a compressor's activated output stages is taken into account during the base load rotation. If a
system is only equipped with one multi-stage compressor or speed controlled compressor, the switching
frequency limitation for this compressor is cancelled. From the second capacity stage onwards switching
frequency limitation remains active.
If there is more than one capacity-controlled or only a single-stage compressor available for a step controller,
the switching frequency limitation remains active for all stages.
If the switching frequency limitation of the first stage is cancelled, a minimum standstill time for the first stage
can be set using the parameter
Off Time S1 xxxs (menu 3-3). The minimum standstill time is only displayed if
the system only has one capacity-controlled or speed controlled compressor available.
The standstill time is always observed after switching off the first compressor by the suction pressure controller
or as a result of faults. In the case of a capacity-controlled compressor, the first stage is only switched on again
when the switch-on delay
and the minimum standstill time have elapsed. A speed controlled compressor starts
after expiry of the minimum standstill time and runs for the duration of the switch-on delay at the minimum
speed.
5.21 Oil balancing
Step control
In order to establish an oil balance between the individual compressors, the operating time of all compressors
is monitored. If the compressor operating time exceeds a configurable maximum operating time, the
compressor is switched of for a configurable standstill time. If a compressor is switched off via the suction
pressure control within the monitoring time, the monitoring time is restarted with the switching on of the
compressor. If the regulated standstill time is shorter than the configurable standstill time for the oil balancing,
the standstill time is ignored. If several oil balancing switching operations occur together, then these are
staggered.
The oil balancing switching of the next stage only starts after the previous stage is at standstill and the
configured standstill time has elapsed. The oil balancing is only performed if all available compressors are in
operation.
During part-load operation, oil balancing is performed via the base load rotation.