ECKELMANN VS 3000 User Manual

Version 2.02 15.05.2007
Function of VS 3000
21
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The following diagram shows the control sequences on actuation of the motor overload cutout for manual enab-
ling (Mot.cutout C Y) and automatic enabling (Mot.cutout C N):
Motor overload
cutout
Compressor
Message
Enable
Compressor
Enable manually
Signal
Time
Motor overload
cutout
Compressor
Message
Enable
Compressor
Enable automatically
Signal
Time
ZNR. 51203 55 730 E0
With scroll compressors particularly, no motor overload cutouts are used. Monitoring of the motor overload cut-
out can therefore be activated or deactivated by the Mot.cutout C (motor overload cutout available) in Menu 3-1.
If the motor overload cutout is deactivated, the Mot.cutout C Y/N parameter is neither shown nor evaluated.
By default the Mot.cutout C parameter is activated. This can result in compressor capacity stages
being disabled during startup, for example, and insufficient refrigeration capacity being available in
subsequent operation.
3.21 Monitoring low oil pressure cutout
Oil pressure is monitored on each compressor by the low oil pressure cutout equipped with a floating contact.
The contact is open in the alarm state. The compressor is stopped directly and disabled for all further control
actions when the low oil pressure cutout is actuated. On resetting the low oil pressure cutout, the compressor is
re-enabled.
With scroll compressors particularly, no low oil pressure cutouts are used. Monitoring of the low oil
pressure cutout can therefore be activated or deactivated via parameter.

ECKELMANN VS 3000 Specifications

General

Brand	ECKELMANN
Model	VS 3000
Category	Controller
Language	English