ABB CPS6000 Product Manual page 142

Figure 12-4 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.
Open Integral ES772A
Disconnect Switch
Battery reconnected in
reverse polarity
System started w/
reverse battery polarity
Figure 12-4: Reverse Polarity Protected Alarm Connections with an External Battery Disconnect Switch
Page 142
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Contactor Fail Contactor Open
Alarm Alarm
X
X
STATUS 1 (J1 PIN 10 ) or
STATUS 2 (J3 Pin 3)
STATUS 1 RTN (J1 Pin 9) or
STATUS 2 RTN (J3 Pin 2)
LVD 1_COIL (J1 Pin 12 ) or LVD
2_COIL 2 RNT (J3 Pin 4)
EXT BAT SW 1 (J1 Pin 7) or
EXT BAT SW 2(J1 Pin 14
BATT 1_SENCE (J1 Pin 5) or
BATT 2 SENCE (J3 Pin 1)
Open String Alarm
X
X
X
VBUS (+) Load
VBUS (+)
QS840A LED
RED
RED
RED
LVBD
Contactor
ES772 LED
Blinking AMBER
RED
RED