Automatic Start/Stop; Automatic Fault Shutdown - Baldor TS25 Installation & Operating Manual

Automatic Start/Stop

First, ensure all "Pre−start Procedures" are complete.
To setup the generator for automatic operation, set the Master Control switch to the "Auto Start"
position. The following happens:

Automatic Fault Shutdown

When a fault circuit is programmed as a SHUTDOWN, the engine will immediately stop when the
fault is activated. A specific shutdown fault can be programmed with a definite time transient
delay period that must expire before the shutdown is activated. The stop sequence will cause the
controllers RUN output to be immediately terminated which will cause the engine to stop.
"Low Oil Pressure" Monitoring of oil pressure begins for a preset time after unit starts and
remains in effect until unit is shut down (except as noted in "Loss of Frequency Input"). The LOP
signal is derived from an oil pressure switch gauge mounted on the control panel
"High Temperature" The engine temperature monitoring begins immediately with the start
signal. However, if engine temperature is excessive prior to start (i.e., heat soak after shutdown),
the unit is permitted to start. and run for up to 60 seconds. The high temperature condition is
permitted to exist for up to 60 seconds after start before shutdown when alarm occurs. If the
excessive temperature condition is corrected within the 60 seconds, normal operation continues.
"Overspeed"
Over speed protection is provided by a frequency sensing network within the controller. The trip point
of the frequency network is adjustable by a rheostat located on the top of the controller at the right
hand side. Clockwise (CW) rotation increases the trip frequency and the shutdown speed.
"Loss of Frequency" (engine RPM)
Internal protection against loss of frequency input to the cranking disconnect circuit is set after
the unit has started normally. If the frequency goes to zero (engine runs out of fuel, frequency
signal source fails, etc.) the LOP shutdown circuit is bypassed and a 12 second wait period is
initiated. If frequency returns within this time period, LOP monitoring resumes and operation
continues normally. If frequency has not returned at the end of this time period, the engine oil
pressure status is observed to determine whether the engine is actually running or stopped. If the
engine has stopped (i.e., air in fuel, etc.), the cranking cycle will begin in an effort to restart the
engine. If the engine has not stopped (loss of input signal, etc.), the unit is shutdown with an
"Over crank" indication and alarm.
WARNING: Over crank indication can mean a loss of crank disconnect signal during the previous run
period. Attempting to restart the engine with no crank disconnect signal can destroy the
starter motor, which can cause serious personal injury.
"Overcrank"
The cranking disconnect signal source is a key component in this system and must be checked
out thoroughly whenever an Over crank shutdown occurs.
WARNING: Never "jump start" a generator to start the engine. If the battery charge is insufficient to start
the engine, charge or replace the battery and try to restart. Jump starting a battery can cause
the battery to explode and cause severe injury or death to anyone in the area.
Caution: If a dead battery is suspected, remove the controller fuse, charge battery (or replace), and
then attempting starting. Damage to engine control may result from jump starting.
Cranking Control
Over crank Protection
This feature provides a preset crank cycle time period. Failure of the engine to start by the end of
the crank period results in an Over crank shutdown and alarm indication.
Cranking Disconnect Adjustment (CDS Adjustment)
The cranking disconnect signal is obtained by a frequency network within the controller. The trip
point of the frequency network is not adjustable.
MN2416
1. The engine will automatically start upon activation of the remote start contact input.
The remote device initiates a start sequence upon contact closure.
2. When the remote start signal is activated, the engine will start as per the sequence of
operation described for the manual start sequence.
3. The automatic stop sequence will be initiated by removal of the remote start signal.
4. When the start signal is removed, a cool down delay function will be initiated.
5. When the cool down time delay period expires (typically 5 minutes), the controllers
RUN output will be immediately terminated which will initiate the engine to stop.
Operation 4-7