8.
Check Slide Position
During this step, the panel will ensure that the position of the capacity slide is below the value of the
Capacity Slide Allowed To Start
parameter.
9.
Retrofit Oil Drain Input Energized
During this step, the panel will wait for the compressor
Oil Drain Input
to become energized. This step will
only be displayed if the compressor
Brand
is set to a
Hall with Internal/No Pump
in the configuration.
10.
Check Prelube Timer (optional)
During this step, the oil pump will be run for a period of time specified in the
Oil Pump Prelube Timer
param-
eter. This step will not be displayed if the compressor is set to a
Grasso
in the configuration.
11.
Check Oil Differential
During this step, the panel will check to ensure that the oil differential pressure is at an acceptable value.
12.
Send Motor Start Signal
During this step, the panel will energize the compressor motor starter output.
13.
Check Interlock
During this step, the panel will check to ensure that the motor starter interlock has become energized within
an appropriate amount of time and that the motor current reading is at an acceptable value.
3.9.3
Running Description
This mode of operation indicates that the compressor has successfully started. As long as it remains in this
mode, the compressor will operate normally as dictated by the capacity control parameters. While in this mode,
the green
START
button will be solidly illuminated.
3.9.4
Stopping Description
This mode of operation indicates that the compressor is in the process of stopping. During this period, the com-
pressor will unload to its minimum position before stopping the compressor. While the panel is in this mode, the
STOP
button will be blinking.
The stopping sequence follows the steps displayed below:
1.
Check Slide Position
During this step, the panel will ensure that the position of the capacity slide is below the value of the
Capacity Slide Allowed To Start
parameter.
2.
Send Motor Stop Signal
During this step, the panel will send the command to stop the compressor.
3.
Check Interlock
During this step, the panel will check to ensure that the motor starter interlock has become de-energized
within an appropriate amount of time and that the motor current reading is at an acceptable value.
3.10
Additional Operating States
This section details additional compressor states which may occur during operation.
Control
Additional Operating States
Instruction Manual | GEA Omni™
Control panel
198
GEA Refrigeration North America, Inc. | E_806550_2 | Generated 12.01.2016
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