IST Series UPS (10kVA-200kVA)
User Manual 2 Overview
17
Expansion dry contact board (optional)
The expansion dry contact communication port includes 4 input dry contact communication
signal and 3 output dry contact signal, detailed definition is as shown in Table2-2 and Table2-
3.
Table2-2 Output dry contact function illustration
NO.
Silk-
screen
Signal Function illustration
1 ND5
It can be set to battery trip, output
breaker, bypass output, start
generator, sync/ async signal.
When the signal is valid, COM
and NO is closed, COM and NC
is opened. The allowable voltage-
withstand is 250V/1A.
2 ND6
3 ND7
4 ND8
Table2-3 Input dry contact function illustration
NO.
Silk-
screen
Signal Function illustration
1 ND9
It can be set to battery grounding
When the signal is valid, NO and
COM is short circuited.
2 ND10
3 ND11
4 ND12 Reserved
Control card
The control card includes two ports: PARALLEL port is used for connecting the parallel UPS;
BCS port is double-busbar system port.
SNMP card and software (optional)
SNMP card is installed in the SNMP card insert slot of UPS or externally. It can realize remote
management of the UPS through network. Detailed operation setting please see the user
manual of network adapter.
Monitor card