ECKELMANN VS 3015 C, Инструкция по эксплуатации

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Depending on the air humidity, a temperature offset, t
0 offset
is then formed that is added to t
0_set
:
5.4.5 Base load rotation
The operating time of each compressor is monitored internally. In order to achieve even operating time of the
compressors, the compressor with the longest operating time is disabled and the compressor with the shortest
operating time is enabled after expiry of a configurable cycle time.
For capacity-controlled compressors, base load rotation only occurs when the base load stage of an additional
compressor is available. During base load rotation, the compressor with the longest operating time is disabled
and the compressor with the shortest operating time is loaded. For base load rotation with capacity-controlled
compressors, the switching state of the capacity stage(s) is also adopted for the new compressor. The base
load rotation is only active under the following conditions:
• If all configurable compressors are enabled, base load rotation is only performed in the case of
increasing pressure within the neutral zone.
• If compressors have been disabled due to load shedding, base load rotation is only performed in the
case of increasing pressure.
The base load rotation can be adjusted using the Cycle time F. / Cycle time C. parameter (menu 3-6). If base
load rotation is not required, the value "--" can be assigned to the parameter, and thus the base load rotation
has been deactivated.
Base load rotation for speed controlled compressors
For systems with speed-controlled compressors, a speed controller can be assigned to the first two
compressors (C1 and C2). Further fixed-speed compressors (C3..Cn) can also be controlled.
The base load rotation of the fixed-speed compressors (C3..Cn) is performed
according to the procedure
described in chapter Base load rotation Base load rotation, page 27. . Compressors (C1 and C2) that can be
assigned to the speed controller are alternately activated on the speed controller following expiry of the cycle
time or when all compressors are idle via a relay output of the controller according to the following sequence.
The setpoint for taking account of the air humidity can be set separately for the day and night operation.
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