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If the external disconnect switch is connected as shown in Fig 3, then the reverse battery protection
feature will be provided.
Read all warning statements prior to making any connections.
Manual LVD Cont Connect - Manual LVD Contactor Connect. This feature allows the CPS6000
•
system to resume powering the load after low voltage disconnect of batteries
following a battery on discharge event. The fully depleted battery strings are to be replaced with
•
fully charged strings. Once the strings have been replaced, depressing the Manual LVD Cont
switches on the front of the ES772A module will result in the LVD contactors closing and the LED
blinking in green color. Continue to depress the switches until the LED stops flashing and displays a
continuous green color. This indicates acceptance of command and continued closure of
contactors. Note that releasing the switches prior to the LED displaying a continuous green color
will result in the contactor opening and removing power to the load.
External battery shunt input, (J1, pins 4 and 11). The battery shunt must be in the VBatt(-) leg to
•
maintain proper reference with the ES772A module. These inputs are for the system controller to
read battery current. The polarity of the connections should be positive during battery discharge.
Control and monitor two contactors. These connections are to control and monitor two contactors,
•
either of which could be a load or battery disconnect device.
Monitor plant voltage for backup LVD function (in case of failure of controller during battery
•
discharge)
Module Connector Definitions
The ES772A module has five connectors that the user interfaces to, two are RJ-45 connectors that are
used for serial communication to ES773A VT-Probes, the ES771A Remote Voltage Monitoring Module,
and to the QS840A controller. The remaining connectors are used for monitoring circuit breakers,
contactors and shunts.
Mating part for J1 (14 pin) is Amp, part number 1-794617-4.
Mating part for J3 (4 pin) is Amp, part number 794617-4.
Mating part for J5 (12 pin) is Amp, part number 1-794617-2.
Pin
Name
Definition
1
VPWR +
V(+) Power
2
N/A
Reserved
3
N/A
Reserved
4
SHUNT-
Neg Batt Shunt Input
5
BATT1_SENSE
Polarity Sense for String 1
Trip-Indicator Input-1 for US Style CB or
6
DIST_ALM_1
GMT Fuse. Alarm on closure to VBus(-).
Alarm input for external battery
7
EXT BAT SW1
disconnect switch; alarm on closure to
VBus(- ).
Page 139
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Comments/Connections
Power for ES772A, connect to VBus(+)
Polarity is during battery discharge
Connect to battery negative, V(-) of String
1
Connect to NC terminal of breaker micro switch or to
indicator lead of GMT fuse, other end (C) referenced to
VBus(-).
Connect to NC micro switch of US Style CB, other end (C)
referenced to VBus (-), micro switch must close upon
manual opening of CB.
Table 12-A: Connector J1 Pin-out Definitions
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