Repo Connection; Figure 2 Repo Switch Connections - Liebert Nfinity User Manual

2.3.3

REPO Connection

The Nfinity is equipped with a Remote Emergency Power Off (REPO) connection.
NOTE
A jumper is factory installed between pins 1 & 2 to disable the Control Switch (SW2).
This will prevent the unit from being started during installation. This jumper must
be removed in order to start the unit.
Figure 2 REPO switch connections
REPO jumper
connected
as shipped
1 2
NOTE
Remove jumper before wiring.
If the installation does not
require connection to a REPO
system, the jumper must be
removed.
CAUTION
!
To maintain safety, Signal Edge Low Voltage (SELV) barriers, and electromagnetic
compatibility, signal cables should be segregated and run separately from power cables.
REPO switch
on rear of unit
3 4
REPO connections
for normally open
switch system
1 2 3 4
Key to REPO switch connections
1. 24 V DC, 50mA
2. Sense
3. Sense
4. Ground
15
Hanger for cable-tie
to strain relief REPO
wiring
REPO connections
for normally closed
switch system (fail-safe)
1 2 3 4
Installation