12.
Automatic Stop Delay
This parameter is used to select the period of time that must elapse after the conditions to automatically stop
the compressor are met before it will be permitted to stop. In most circumstances the control signal must
remain below the value of the
Automatic Stop
parameter. The exception is when the control signal is set to
Discharge Pressure
, where the value must instead exceed the
Automatic Stop
parameter. This parameter is
only visible if the
Automatic Start Stop
parameter is not set to
Disnabled
. The value is measured in seconds.
13.
Load Pulse Period
This parameter is used to select the total duration of an individual pulse to the load solenoid. The proximity
of the control signal value to the set point determines for which portion of the period the compressor will be
loading. For further information, refer to Section 3.11, Page 199. The value is measured in seconds.
14.
Unload Pulse Period
This parameter is used to select the total duration of an individual pulse to the unload solenoid. The proxim-
ity of the control signal value to the set point determines for which portion of the period the compressor will
be unloading. For further information, refer to Section 3.11, Page 199. The value is measured in seconds.
15.
Minimum Capacity Slide Position
This parameter is used to select the lowest allowable value for the capacity slide valve during normal opera-
tion. If the current reading on the capacity slide drops below this value, the compressor will load until the
selected minimum position is reached unless an outside limitation is active. The maximum value of this
parameter is the current value of the
Maximum Capacity Slide Position
parameter. The parameter may only
be manually changed from the panel while it is operating in
Local
mode. If the panel is operating in remote
mode, changes to this value must be made through the sequence control. The value is measured in percent.
16.
Maximum Capacity Slide Position
This parameter is used to select the highest allowable value for the capacity slide valve during normal opera-
tion. If the current reading on the capacity slide rises above this value, the compressor will unload until the
selected maximum position is reached unless an outside limitation is active. The minimum value of this
parameter is the current value of the
Minimum Capacity Slide Position
parameter. The value is measured in
percent.
17.
Ramp Rate per Minute
This parameter is used to select how quickly the set point approaches its chosen value after startup. This is
to ensure that the compressor will not attempt to load up to set point too quickly upon starting. The value
indicates the change per minute, and the maximum value, minimum value and units of the parameter are
dependent on the chosen control signal:
•
Pressure
Measured in the panel pressure units as selected in the
Panel Settings
screen.
•
Temperature
Measured in the panel temperature units as selected in the
Panel Settings
screen.
•
Remote Capacity Slide
Measured in percent.
Control
Compressor Control Parameters
Instruction Manual | GEA Omni™
Control panel
108
GEA Refrigeration North America, Inc. | E_806550_2 | Generated 12.01.2016
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