Kohler KCP MPAC 1000 User Manual

TP-6126 8/02 29Section 4 Operation
4.2.2 System Test
A system test simulates a preferred source failure and
performs the transfer sequence. Press and release the
test button to start the test. Press and release the test
button again to end the test. The test sequence does not
start if the ATS is in the standby position.
A test sequence can also be started or ended through
the setup software. See the Setup Program Operation
manual.
The Test LED flashes to indicate a loaded test or lights
steadily to indicate a test without load. Use the test DIP
switch to select loaded or unloaded tests. See Section
3.3.1 for DIP switch locations and settings.
Figure 4-4 and Figure 4-5 illustrate the following test
sequences. Figure 4-6 shows the operation of the user
interface LEDs during the test sequence.
Test without Load. The test without load sequence
starts the generator set but does not transfer the load.
The generator set continues to run until the test button is
pushed again.
Test with Load. The test with load sequence s imulates
a preferred source failure and activates the pre- and
post-transfer load control sequences as programmed.
Refer to Section 4.2.5 for additional information about
pre-transfer time delays.
The test remains active until the test button is pushed
again or until a remote test signal is received. If the
standby source fails during a test cycle, the system
immediately transfers back to preferred.
The test sequence executes all time delays that are set
up to operate during a normal sequence of operation.
Press the End Time Delay button to shorten the time
delays while they are running, if desired. (The End Time
Delay button does not end programmed-transition time
delays.)
At the start of the test, the ATS simulates a preferred
source failure and signals the generator set to start.
When the standby source is available and the time delay
preferred-to-standby expires, the ATS transfers the load
if the test DIP switch is set for a loaded test.
When the test button is pressed again, the ATS transfers
the load back to the preferred source, if available, after
the standby-to-preferred time delay. The ATS removes
the generator engine start signal after the related time
delays expire. (The generator set may continue to run if
the generator set controller provides an additional
engine cooldown time delay.)
Time delay engine
start (TDES)
Generator set engine start
contacts close
Test started
Test ended
Time delay engine cooldown (TDEC)
(as programmed)* (default = 0)
Generator set engine start
signal removed
Load bank control output
activated (as programmed*)
Load bank control output
deactivated (as programmed*)
* See the Setup Program Operation Manual.
Figure 4 -4 Test Without Load Sequence

Kohler KCP MPAC 1000 Specifications

General

Brand	Kohler
Model	KCP MPAC 1000
Category	Switch
Language	English