ENGLISH
V.
Connection of the UPS
The UPS should be protected with circuit breaker on the
input. Minimum rating should 10A for 1000VA, 12A for
1500VA, 16A for 2000VA and 20A for 3000VA. For output
connection please use original cables and share the load
equally among outlets.
VI.
Connecting Battery Packs
Remove front panel, connect the battery via Anderson PP45 connectors. Make sure you
are connecting with correct polarity (red to red, black to black). Make sure the wires are
connected tight. Close front panel. Setup the amount of battery packs in the settings.
VII.
Communication Ports
A Local communication with the software can be
established via USB or RS232 connector. Alternatively UPS
can be controlled using dry contacts.
VIII.
DB9 Female (RS232) pin description
PIN #
Signal name
Function
Direction from the UPS
2
Tx
Transmit to external device
Out
3
Rx
Receive from external device
In
5
GND
Signal common (tied to chassis)
Not applicable
Other
Not Used
Dry contacts are not available for VI ERT series.
IX.
Dry contact port and EPO
The relay output contact must not be connected to any utility connected circuits.
Reinforced insulation to the utility is required. The relay output contact has a maximum
rating of 30Vac/1A.
The signal input to control UPS On/Off status is the same as one button to control UPS
On/Off status. The relay output can be configured by protocol command:
Dry out signal
Description
Summary Alarm
[DEFAULT]
Activated when any warning happens
2
Dry contact input / EPO
3
USB Port
4
AC Input
5
Dry contact output
6
Intelligent Slot
7
RS232
8
Earth Line Port
