System Operation
Copyright © 2007-2018 Eaton Corporation. All Rights Reserved.
IPN 997-00012-03 B2 Issue B2 July 2018
81
Configuration
► To set up Generator Control:
•
Connect from the normally open (NO) contacts of an unused digital output relay on the I/O
board to the generator run circuit.
Ensure that no alarms are mapped to this relay.
•
On the web, go to
Digital Outputs
and configure the digital output as
Active State Energized
. See
Digital Outputs on page 90.
•
Connect a spare digital input to a volts free contact that closes when the generator is running.
Configure this with
Function = Engine Run.
This contact tells the SC300 that the generator is actually running, and allows it to determine if
the generator has failed.
•
Check that
Fast Charge
is enabled, and check the Fast Charge configuration settings. See Fast
Charge Configuration on page 34.
•
Set the following parameters:
Parameter
Description
Where to find:
Start generator on
fast charge
The controller will activate the generator control
relay while
Fast Charge
is active or pending, and
deactivate it when the
Fast Charge
cycle ends.
SC300: Control Processes >
Generator Control > Settings
(tab)
DCTools/Web: Control
Processes > Generator
Control
Start generator on
equalize
The controller will activate the generator control
relay while
Equalize
is active, and deactivate it
when the
Equalize
cycle ends.
Start generator on
AC Peak Load
Reduction
The controller will activate the generator control
relay when
PLR
is active, and the battery has
discharged down to the PLR
Low Voltage Limit
and deactivate it when the battery is fully
charged (as indicated by Ah Discharged is zero).
Start generator on
mains failure
The controller will activate the generator control
relay is an AC supply failure is detected, and
deactivate it when the ac supply is restored.
Control Relay
The relay used to control the generator startup
and shutdown. If this is set to None, the
generator control process is disabled.
Startup wiring
Set to Direct Start if the SC300 has full control of
generator start.
Set to Indirect Start if the system is wired so that
the generator will automatically start when ac
fails unless the Control Relay is opened by the
SC300.
Maximum Run-
Time
The maximum time the generator is permitted to
run following a manual start.
Battery capacity
The rated 10 hour (C10) capacity of the installed
battery strings.
SC300: Battery > Battery or
DCTools/Web: Batteries.
Generator Fail
Alarm Recognition
Period
A
Generator Fail
alarm is activated after this time
if the Generator Control output is active but the
ac supply has not been restored.
SC300: Alarms > Settings
(tab)
DCTools/Web: Alarms >
Alarm Configuration
