Delta Ultron GES203HH33A035, User Manual, Page: 27 / 70

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Chapter 5 Communication Interfaces
The HPH UPS provides six sets of programmable output dry contacts for you to receive UPS
events. The output dry contacts are normally open. There are eighteen events for you to select,
and you can choose six of them to set up the output dry contacts. Please refer to the table below.
No. Event Description
1 Load on inverter 1. The UPS works in normal mode.
2. Default: Pin 1 & 2
2 Load on bypass 1. The UPS works in bypass mode.
2. Default: Pin 3 & 4
3 Battery discharge/
Main input NOK 1. When the main AC source fails, it is the batteries to sup-
ply power to the equipment loads.
2. Default: Pin 5 & 6
4 Low battery 1. When the UPS runs in battery mode, battery voltage is
lower than setup limit, 220Vdc.
2. Default: Pin 7 & 8
5 Bypass input NOK 1. The bypass voltage, frequency or phase sequence is ab-
normal.
2. Default: Pin 9 & 10
6 Battery test fail or battery
missing 1. In the process of battery test, battery voltage is out of
setup limit.
2. Default: Pin 11 & 12
7 Internal communication
failure Power unit’s internal communication is abnormal.
8 External parallel commu-
nication loss In parallel mode, parallel communication is abnormal.
9 Output overload warning/
shutdown The UPS is overloaded or the UPS shuts down to let the by-
pass supply power to the equipment loads.
10 EPO activated The EPO button is pressed to urgently power off the UPS.
11 Load on manual bypass The Manual Bypass Switch is turned on and the UPS trans-
fers to manual bypass mode.
12 Battery cabinet over tem-
perature warning/ shut-
down The external battery cabinet’s temperature is too high.
13 Abnormal inverter voltage The output voltage is too high or too low.