KGL Operating Manual – VS 3010 BS
2018-07-02
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30 178
The shifting up or shifting down time is calculated from the sum of
basic time t and
b
variable time t
v
Basic Time
The basic time can be configured and is always constant.
Variable Time
The variable time can be configured and is variable. The value range is between 0 and the configured value (in
seconds). The duration of the variable time is calculated depending on the control constant.
An example for this with a basic time of 20 seconds and a variable time of 200 seconds. The control constant
is parametrised to 10 K.
Parametrisation of control times
The basic time and the maximum variable time for the shifting up (switching on) shifting down (switching
off) can be configured for each capacity stage.
There are separate control time parameters for daytime and night operation with separate control
constant in each case.
Daytime control times are located in the menu 3-1-2-3
Night control times are located in the menu 3-1-2-4
Off Time S1 is located in the menu 3-3 and is applicable for daytime and night operation
A compressor stage is loaded with the delay time for number of running compr 1.
The shutdown times are directly assigned to the compressor stages for combined control.
The calculation of the control times is identical for both temperature ranges. The variable control time tv = 0 if
the booster / satellite compressors are controlled directly via the consumers. Consequently, the control time
only still consists of the basic time t = tb.
4.4.4 Capacity-controlled compressors
