Smart-UPS® VT ISX w/transformer, 20-30 kVA, 480 V, Installation
Top cabling entry
Remove the top cable landing plates.
Feed the battery cables through the punched holes in the top plate.
Guide the cables through the blanking plugs.
Use cable ties to attach the cables to the side panel and slotted plate.
Connect Bat+ and Bat– and N as described under bottom cabling.
See also
For configurations including customer-supplied external
batteries, refer to manufacturer’s battery installation and
maintenance instructions.
4
Communication to EPO,
Batteries, and Options
EPO switch wiring – pin connections J108 (for
EPO wiring options)
Note
EPO switch must be connected to a NEC Class 2 wiring.
Note
Use only 28-16 AWG copper wire for the connection of the
Emergency Power Off (EPO) and other optional equipment.
Keep all other wiring and uninsulated live parts separate of
other NEC Class 2 circuits.
Note
Do not connect any circuits to the EPO terminal block unless it
can be confirmed that the circuit is a NEC Class 2 circuit.
Note
The UPS must be connected to either a dry contact or a 24 V
DC
Emergency Power Off (EPO) switch.
J106 Pin Connections:
8 Ext. charging control return
7 External control of charging
6 Q3 active return
5 Q3 active
4 Battery measurement supply*
3 Battery unit quantity*
2 Max. battery temperature*
1 Battery measurement return*
* Should be used with APC XR
Enclosures
J108 Pin Connections:
1 Normally open EPO
2 Normally open EPO return
3 Normally closed EPO
4 Normally closed EPO return
5 +24V SELV supply
6 SELV ground
Smart-UPS® VT ISX w/transformer, 20-30 kVA, 480 V, Installation
Connect the EPO cable, using one of the following 4 wiring
configurations.
Pin connections J106 (UPS)
Note
Always follow the pin connection procedures from the top and
work down: J106 (8-1), J108 (1-6).
1
2
3
4
5
6
J108
EPO circuit
1
2
3
4
5
6
J108
1
2
3
4
5
6
J108
1
2
3
4
5
6
J108
1: Dry Contracts
Normally Open
2: +24V Normally Open
3: Dry Contacts
Normally Closed
4: +24V Normally
Closed
EPO circuit
EPO circuit
EPO circuit
EPO is activated
when a connection
from pin 3 to pin 5 is
opened.
EPO is activated
when pin 1 is
connected to pins
3 and 5.
EPO is activated
when an isolated
SELV 24V
DC
voltage
is supplied on pin 1
with reference to pin
2.
EPO is activated when
a SELV 24V
DC
voltage
removed from pin 3
with reference to
pin 5.
8
7
6
5
4
3
2
1
J106
Q3
switch
Charging control switch
J200 (XR Batteries)
4
3
2
1
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