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Page 138
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Manual LVD Cont Connect:
Switches for forced reconnect function.
LVD1 Disc SW:
Disconnect switch for external contactor 1, when wired as described in installation
section.
LED:
This is a tri
-
colored LED and will illuminate accordingly for the conditions shown below.
LEDs: *
= On
Green
Amber
Red
Condition
*
Normal
*
Minor Alarm
*
Major Alarm
Flashing
External Contactor (s) Manually Opened with either LVD1 or
LVD2 DISC SW
Flashing
Communication Loss with System Controller
Flash (5 sec)
*
Manual Reconnect Command Accepting
Mounting Hole MH2:
Mounting hole to mount module in user application.
The ES772A is referenced to VBus(
-
), therefore, all alarm inputs are either alarmed on an open or a
closure to VBus(
-
) as described in the following.
Module Features
The ES772A module has the following features:
•
16 Alarm inputs. These inputs may be used to monitor for distribution circuit breakers with micro
-
switch closures
for protector opening, GMT style fuses with or DIN style circuit breakers. Furthermore, the two Auxiliary Major
alarms may be used to monitor micro
-
switch closures from other devices such as a fan or a door, etc.
The alarming states for the different inputs are as stated below:
•
10 inputs to alarm or an open to VBus(
-
) for DIN style circuit breakers (J5 pins 1
-
10)
•
2 inputs to alarm on closure to VBus(
-
) for Auxiliary Major alarming from external source (J5 pins 11 and 12)
•
2 inputs to alarm upon closure to VBus(
-
), for distribution protector open alarms (J1 pins 6 and 13)
•
2 inputs to alarm upon closure to VBus(
-
) for battery circuit breaker open alarms (J1 pins 7 and 14)
•
(2) LVBD or LVLD Contactor Manual Disconnect Switches are provided. These switches allows users to manually
open up to two external contactors to disconnect a battery string from the V(
-
) bus and allow the user to perform
maintenance on the battery. The switches can also disconnect a load from the V(
-
) bus if the contactor is
configured for load disconnect.
•
Reverse Battery Protection. If wired as instructed in Fig. 2 or 3 (see below), the ES772A will prevent the closure of
contactors with batteries that are wired in reverse polarity. It will be active during initial start
-
up and also during
servicing if the integral battery disconnect switches are used to connect and disconnect the battery strings from
the V(
-
) bus. If the battery strings are wired in reverse polarity and an attempt was made to close the contactor, the
ES772A will disconnect all contactors and appropriate alarms will be transmitted.
If an external disconnect switch is used to take battery strings off
-
line for servicing, care must be
taken to ensure battery connections are correct at the disconnect switch. This is because the
contactors remain closed when an external disconnect switch is used to disconnect the batteries from
the bus. If the batteries are reconnected in reverse polarity, closing the switch will result in the
batteries being connected to the bus in reverse polarity.
Содержание CPS6000
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