User Manual 200 kVA-1200 kVA UPS
3 Installation
35
Dry contact
Signal description
Status description
Function description
Battery switch
tripping
Initial state is close and the close
status means the battery switch not
tripped, and the open status means
the battery switch tripped,
Act to open the battery switch so
as to protect the battery before
battery EOD powering off
Bypass failure
Initial state is close and the close
status means no bypass failure, and
the open status means the bypass
failure
Output the status information of
the battery failure
Fan failure
Initial state is close and the close
status means no fan failure, and the
open status means the fan failure
Output the status information of
the fan failure
Time-based powering
off
Initial state is close and the close
status means no time-based
powering off, and the open status
means the time-based powering off
Power failure in both main circuit
and bypass. The battery supplies
power to DOD, and the action
signal is output.
Interface
terminal TB1
BYP
Forcedly enable the bypass
Prevent the operation failure of
UPS due to abnormal
communication. By this function,
the UPS may be forcedly switched
to the bypass.
BYP_COM
Forcedly switch the bypass
enabling circuit
EPO_NO
Remote EPO opened normally
Remote EPO function
EPO_NC
Remote EPO closed normally
EPO_COM
Remote EPO public terminal
VCC+48V
Externally connect with the
positive pole of 48V battery
Used for external connection of
the contactor.
48V-GND
Externally connect with the
negative pole of 48V battery
K5_FB+
External connect with the contact
of the contactor
K5_FB-
External connect with the contact
of the contactor
Note:
DI_1 ~ DI_6 refer to input dry contact interface 1 ~ 6, and DO_1 ~ DO_6 refer to output dry contact
interface 1 ~ 6.
No refers to normal open terminal and NC refers to the normal close terminal.
The output dry contact DO_6 is a high-voltage output dry contact port, which can withstand up to 250Vac,
and provides NC and NO interfaces.
When the dry contact signal line of the external equipment is connected to the dry contact interface of UPS, it
is necessary to ensure that the dry contact name on both ends of the cable corresponds to each other
completely.
When connecting remote EPO, NO signal terminal is recommended to avoid UPS power failure caused by
Summary of Contents for EA990 Super
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