GE Industrial Solutions CPS6000 - Manual (Page 155)

CPS6000 –48V Indoor/Outdoor Power Shelf
Issue 21 January 2008
155
Figure 12-3: Alarm Connections with Reverse Polarity Protection
Figure 12-3 shows the connection required if Reverse Polarity Protection is to be used with
the integral battery disconnect switches LVD1_DISC or LVD2_DISC. Note that the sense
lead BATT1 or BATT2 must be connected as shown in order for the reverse polarity
protection feature to work. If two strings are being used, connect one string to STATUS1,
LVD1, LVD1_COILRTN, STATUS1_RTN, BATCB1, and BATT1_SENSE connections and
the other to the "-2" connections. When more than two strings are being used, divide the
strings among the two inputs.
WARNING
When two battery strings are connected to the same battery terminal, care must be
taken to ensure the polarity of the two strings is correct to each other. Improper
connection will result in one string being shorted to the other string and the system can
not protect against this.
With the above connections, the following alarms will be issued for the conditions noted.
Contactor
Fail Alarm
Contactor Open
Alarm
Open String
Alarm
QS840A
LED ES772 LED
Open Integral ES772A
Disconnect Switch
X RED
Blinking
AMBER
Battery reconnected in
reverse polarity
X X RED RED
System started w/
reverse battery polarity
X X RED RED