Default Settings And Time Delays; System Parameters; Time Delays - Kohler MPAC 1500 Manual

5.4 Default Settings and Time
Delays
The system can be operated using the factory settings
listed in the following sections.
Use the Setup screens to change the controller time
delays, pickup and dropout settings, inputs, outputs,
and options if necessary.
5.4.1

System Parameters

The system parameter factory settings are shown in
Figure 5-2. The controller voltage and frequency
sensing are factory-set to the default values shown in
Figure 5-3. The voltage and frequency debounce time
delays prevent nuisance transfers caused by brief
spikes and dips in the power supply.
System Parameter
Standard or programmed transition
Single/three phase
Operating voltage
Operating frequency (50 or 60 Hz)
Phase rotation
Commit to transfer (yes or no)
Rated current
Operating mode:
Generator-to-Generator,
Utility-to-Generator, or
Utility-to-Utility
In-phase monitor
In-phase monitor transfer angle
Transfer mode
(automatic or non-automatic)*
* The transfer mode (automatic or non-automatic) cannot be
changed in the field.
[ See the ATS nameplate.
Figure 5-2 System Parameters
Voltage and Frequency Sensing
Parameter
Under voltage pickup
Under voltage dropout
Over voltage dropout
Over voltage pickup
Voltage debounce time
Under frequency pickup
Under frequency dropout
Over frequency dropout
Over frequency pickup
Frequency debounce time
Figure 5-3 Factory Settings, Voltage and
Frequency
58 Section 5 Setup
5.4.2
The factory settings for the time delays are shown in
Figure 5-10.
The pre-transfer time delays operate only when both
sources are available.
disconnect selected loads before transfer. The load
control LED on the user interface lights when the
pre-transfer signal is active. The pre-transfer and post-
transfer time delays overlap the preferred-to-standby
and standby-to-preferred transfer time delays.
Factory Setting
Set to order [
Set to order [
Set to order [
Set to order [
ABC
No
Set to order [
Utility-to-Generator
Disabled
5_
Set to order
Figure 5-4
Default
90% of nominal
90% of pickup
110% of nominal
95% of dropout
0.5 sec.
90% of nominal
99% of pickup
101% of pickup
110% of nominal
3 sec.

Time Delays

Time Delay Description
Emergency engine start (emergency source --
Util/Gen and Gen/Gen modes)
Normal engine start (normal source -- Gen/Gen
mode)
Emergency engine cooldown (emergency source --
Util/Gen and Gen/Gen modes)
Normal engine cooldown (normal source --
Gen/Gen mode)
Fail to acquire standby source
Preferred to standby
Pre-transfer to standby source
Post-transfer to standby source
Standby to preferred
Pre-transfer to preferred source
Post-transfer to preferred source
Fail to synchronize
Off (Preferred to Standby for programmed
transition)
Off (Standby to Preferred for programmed
transition)
Factory Settings, Time Delays
These delays allow time to
Default
Time
3 sec
0 sec
0 sec
1 min
1 sec
3 sec
0 sec
15 min
0 sec
0 sec
1 min
1 sec
1 sec
TP-6714 4/10