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+24 VDC Power System User Manual (Section 6013)
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Rev. G
61
Enabling and Disabling the Feature
Refer to "
Enabling, Disabling, and Adjusting the Battery Recharge Current Limit Setting
" in "MCA System
Adjustments" for a procedure.
Battery Charge Current Alarm Feature
The MCA displays "ALM BAT CHG CURR" if total battery charge current (as monitored by the battery Shunt
PODs) exceeds a preset adjustable value.
The Battery Charge Current Alarm is adjustable from 0 to 60000 amperes. Factory set at 2000, unless
otherwise specified.
This feature requires battery current Shunt PODs to be installed in compatible Battery Stand(s) and connected
to the power system.
Refer to "
Setting the Battery Charge Current Alarm Value
" in "MCA System Adjustments for a procedure".
Measuring Battery Charge/Discharge Current
This feature requires battery current Shunt PODs to be installed in the system.
The MCA displays total battery current (charge or discharge) and individual battery currents (charge or
discharge) from up to sixteen shunts. Total of system, subsystem, and battery shunts cannot exceed sixteen.
Procedure
The Measurement Menu displays either "BAT CHG #####A" for total battery charge current, "BAT CHGCL
#####A" if the battery charge is in current limit, or "BAT DIS #####A" for total battery discharge current. You
can step the display to indicate the current measured through each battery Shunt POD installed in the system.
Using the Alarm Relay Test Feature
Nine (9) Form-C alarm relay contacts are provided. Relay operation can be tested via an Alarm Relay Test
feature. When activated, this feature consecutively places each relay in the alarm state for the programmed
time period.
Setting the Alarm Relay Test Feature Time Period
Procedure
1.
With "SYSTEM OK" being displayed on the MCA Interface Pad, press and release the FUNCTION SET
ENTER pushbutton.
or
With "## ALARMS ACTIVE" being displayed on the MCA Interface Pad, press and release the
FUNCTION SET ENTER pushbutton. Repeatedly press and release the FUNCTION SELECT DOWN
arrow pushbutton until "FUNCTION MENU" is displayed. Press and release the FUNCTION SET ENTER
pushbutton.