Input Dry Contacts - Delta Ultron HPH Series User Manual

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
0 None
1 UPS ON/OFF
AC Generator
2
Connect
Battery Ground
3
Fail
External Battery
4
Breaker Detection
Charge Off
5
(Positive)
Charge Off
6
(Negative)
External Manual
7
Bypass Detection
8 Active Standby
Li-ion Battery
9 Over Discharge
Warning
Ultron HPH Series
No Setting.
To control UPS startup or shutdown.
To detect the status of the generator.
To detect the leakage current of battery.
To detect the breaker status of external battery cabinet.
- 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).
- When li-ion battery BMS sent a signal (NC /NO, adjustable) to
UPS, UPS would stop charging to battery negative.
To detect the status of the external manual bypass switch/
breaker.
UPS would turn off its inverter and wait for the Synchronization
with other paralleled UPSs, then transfer to manual bypass.
Receive the over discharge signal of li-ion battery power
management system.
(Table 4-1: Input Dry Contact Events and Description)
Description
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