Battery
undervoltage
UPS faults
Backfeed
Bypass mode
Battery mode
Normal mode
Shutdown
signals
8
4
(Optional) Connecting Cables to Optional Cards
Dry Contact Card
Customer
equipment
Typical Application Scenario
Pin
Dry Contact
Definition
(Default)
Contact
Report Criteria
Reference
18, 5
UPS faults
Contact a, lower
than 30 V/1 A
The UPS is faulty, including:
startup failure, battery fault,
rectifier fault, INV fault, internal
fault, fan fault, charger fault,
memory fault, overvoltage, and
software version fault.
Contact 6
7, 19
Backfeed
Contact a, lower
than 30 V/1 A
Bypass backfeed alarm. The
possible cause is that the bypass
component is faulty.
Contact 5
21, 8
Battery
undervoltage
Contact a, lower
than 30 V/1 A
The battery voltage is less than
47 V.
Contact 4
10, 22
Bypass mode
Contact a, lower
than 30 V/1 A
The UPS works in bypass mode
when the following conditions are
met: The UPS is not powered on,
the UPS is overloaded, ECO is
triggered, and the UPS is
manually shut down.
Contact 3
24, 11
Battery mode
Contact a, lower
than 30 V/1 A
The UPS battery supplies power.
The possible cause is that the
mains supply is abnormal, the
battery test is started, and the
battery is powered on in cold start
mode.
Contact 2
13, 25
Normal mode
Contact a, lower
than 30 V/1 A
Mains inverter mode
Contact 1
14, 1
Shutdown signals
Signal input
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You can customize dry contact inputs by choosing
Settings
>
Communication Card
on the LCD.
NOTE
