Programmable Parameters; Transfer On Exercise; Preheat Enabled (If Applicable); Preheat Time (If Applicable) - Generac Power Systems PowerManager PM-PC Manual

Parallel controller/generator controller
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Status messages
Select which port
to test (0-3)
There are further conditions imposed when an alarm/warning can
become active, details of these are described in the technical
manual for the PM-DCP system or via GenLink™ on line help.
Generally, these incorporate timers, engine run status, etc.

PROGRAMMABLE PARAMETERS

The PM-GC and the PM-PC allow the user to configure various
options to control the generator starting and stopping cycles and
operating settings for the generator. Parameters can be changed
only via GenLink™, and this is limited to parameters that have no
security protection. A description of these programmable param-
eters follows.

TRANSFER ON EXERCISE

This parameter is not used in Paralleling systems. In non-parallel-
ing systems, the exercise feature is setup using the internal exer-
cise setup screen which overrides this parameter.

PREHEAT ENABLED (IF APPLICABLE)

This parameter determines how the preheat function works. The
preheat can be fully disabled, enabled before starting only (for the
duration of the preheat time), during starting only (while the
starter is engaged), or before and during starting (for the duration
of the preheat time and also while the starter is engaged).

PREHEAT TIME (IF APPLICABLE)

When a start command is received, the engine may require pre-
heating before the generator attempts to start. If the preheat func-
tion is enabled, this parameter allows the user to determine the
time that the preheat contact closes before activating the starter
solenoid.
Figure 10 — Communications Diagnostics

NUMBER OF START ATTEMPTS

This parameter will determine how many times the engine will
crank in an attempt to start the engine. For example, if it is set to
two (2), the engine will crank two (2) times with a pause in
between each crank cycle. If it fails to start, an overcrank alarm
will be displayed.

CRANK TIMER

Once a start command has been received and the preheat time has
expired (if enabled), the starter solenoid will be engaged. This
parameter allows the user to determine how long the starter sole-
noid is engaged before the start attempt is regarded as having
failed. If the generator does not start within this time, the generator
will wait for a preset time before attempting to start again. The user
also can program the number of start attempts.

START DETECTION (RPM)

This is the speed at which the engine should be self sustaining and
the point at which the starter disengages. It is changeable by the
user and is normally between 500 rpm and 800 rpm.

PAUSE BETWEEN CRANKS TIME

If the generator does not start within the programmed start time, it
will pause before trying to start again. This parameter determines
the length of that pause.

COOL DOWN TIME

This parameter determines the length of time that the generator
continues to run after a stop command is sent in AUTO mode in
order to cool down the engine with no load.
If the key-switch is turned to the OFF position when the genera-
tor is running, it will stop immediately regardless of this setting.
Operation
These LED's light if
data is transmitted,
received or an error
occurs.
NOTE:
11

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