Kohler KSS User Manual

TP-6461 1/08 33Section 2 Controller Troubleshooting
Fault or Event Message
See
Section
CheckPossible Cause
Auxiliary Switch Fault or
Auxiliary Switch Open
Controller cannot determine the
transfer switch position
Check wiring and connections to
position microswitches. See the
schematic drawing for connections.
W/D
Test position microswitch operation.
Replace microswitch if necessary.
Transfer switch in intermediate position.
Manually operate the transfer switch,
following safety precautions and
instructions for your model.
See the Table of Contents for manual
operation procedures for your unit.
TOC
Check the control contact operation.
Inspect for signs of coil damage or
overheating and replace coil if
necessary. See the Table of Contents
for coil control contact test procedures
for your unit.
TOC
Failure to Acquire Standby
Generator set did not start See “Failure to Start Generator Set,”
below.
Open circuit breaker Check and close ATS source and
generator set circuit breakers.
—
ATS does not recognize the
standby source
Check source voltage, frequency,
phase rotation settings and compare to
actual values.
3.3.2
2.4
Check for loose source connections.
Check the labels on the switch for
tightening torques.
1.2.2
Check for open switch or circuit breaker
to the source.
—
Check ATS calibration. 4.9
Failure to Acquire Preferred
Open circuit breaker Check and close ATS source and
generator set circuit breakers.
ATS does not recognize the
source
Check source voltage, frequency,
phase rotation settings and compare to
actual values.
3.3.2
2.4
Check for loose source connections.
Check the labels on the switch for
tightening torques.
1.2.2
Check for open switch or circuit
breaker.
—
Check ATS calibration. 4.9
External Battery Low Low generator set engine starting
battery voltage
Check battery connections and voltage.
Charge or replace battery if voltage is
low.
Generator
set
manuals
Battery Backup Low Controller backup battery voltage
is low
Replace the controller battery. 4.3.2
Inphase Monitor (IPM) Synching The two sources did not come into
s
y
n
c
h
w
i
t
h
i
n
t
h
e
F
a
i
l
t
o
Adjust inphase monitor angle. ATS O/I/M
sync
h
w
i
t
h
i
nt
h
e
F
a
i
l
to
Syncronize time delay. The ATS
will continue to monitor for
synchronization
It may be necessary to adjust the
generator set frequency in order to
achieve source synchronization.
Generator
set
manuals

Kohler KSS Specifications

General

Brand	Kohler
Model	KSS
Category	Switch
Language	English