GE Industrial Solutions Pulsar Plus Controller - Manual (Page 114)

Pulsar Plus Controller Family
Issue 7 December 2011 114
Figure 24: Reverse Polarity Protected Alarm Connections with an
External Battery Disconnect Switch
Figure 24 shows the connections required if Reverse Polarity Protection is to be used with an external
disconnect switch. Note that the sense lead BATT1_SENSE or BATT2_SENSE 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_COIL, 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. This assumes the
external disconnect switch is used to open and close the battery charging path to the batteries.
Contactor
Fail Alarm
Contactor
Open Alarm
Open String
Alarm Controller 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