Ultron HPH Series
23
4.6 Input Dry Contacts
The HPH UPS provides two sets of input dry contacts and they are normally open. There are ten
events for you to select, and you can choose two of them to set up the input dry contacts. Please
refer to the table below.
No.
Event
Description
0 None
No
Setting.
1
UPS ON/OFF
To control UPS startup or shutdown.
2
AC Generator
Connect
To detect the status of the generator.
3
Battery Ground
Fail
To detect the leakage current of battery.
4
External Battery
Breaker Detection
To detect the breaker status of external battery cabinet.
5
Charge Off
(Positive)
- When li-ion battery BMS sent a signal (NC /NO, adjustable) to
UPS, UPS would stop charging to battery positive.
* When user only have single output dry contact event, user could
parallel the dry contacts of Charge off (positive) & Charge
(negative).
6
Charge Off
(Negative)
- When li-ion battery BMS sent a signal (NC /NO, adjustable) to
UPS, UPS would stop charging to battery negative.
7
External Manual
Bypass Detection
To detect the status of the external manual bypass switch/
breaker.
8 Active
Standby
UPS would turn off its inverter and wait for the Synchronization
with other paralleled UPSs, then transfer to manual bypass.
9
Li-ion Battery
Over Discharge
Warning
Receive the over discharge signal of li-ion battery power
management system.
(Table 4-1: Input Dry Contact Events and Description)
Summary of Contents for Ultron HPH Series
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