KGL Operating Manual – VS 3010 BS
2018-07-02
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The parameters are only displayed if "Speed controller" or "Combined controller" has been activated. The
minimum speed of the speed controller can be specified with the "Min. Fan speed" parameter. The value is
entered in percent and refers to the 0..10 V analogue output of the pack controller. The controller speed can
be influenced with the adjust.diff. parameter. The value must be increased if the controller is too slow. The
value should be reduced if the controller vibrates.
If the tc-max threshold is exceeded, the second capacity stage of the controller is activated and the first
capacity stage is disabled (enabling of speed adjuster). With the second capacity stage, a bypass is activated
that switches the speed controlled fans to mains power operation. After the specified setpoint has been
undercut, the controller switches back to normal operation.
If the pack controller is operated with speed controlled condenser fans, a bypass for the speed
controller on the fan motor must be switched via the bypass stage (fan output 2) as in the event of tc-
max. being exceeded the enable for the speed controller is withdrawn and switched to the bypass
stage.