Ingersoll-Rand ENL 5 Vario, Instructions For Installation And Operation Manual

Page: 13 / 96

80442916 ingersollrandproducts.com 1
EN
Connection of the potential-free contact and of the
external test:
Selection of the suitable cable.
Connection to X2 and X, as shown on the left.
The installation steps are the same as for the power
supply connection.
If the potential-free contact carries voltage that is
dangerous in the case of contact, a corresponding
separator must also be provided, as described above.
When using the potential-free contacts and the
connection external test, sufficient clearance to
the other parts of the unit, or suitable insulation in
accordance with EN 60664-1 must be ensured.
When using a multiwire, common line for the
connection of the potential-free contact and the
external test, this line must be suitable for the highest
occurring voltage and the intended temperature
range with regard to its nominal ratings.
Terminal assignment supply voltage (operating voltage)
X 1
X 2 X 3
1
2 1 2 3
1 2
po
w
er
po
w
er
no
rm
al
ly
op
en
co
m
m
on
no
rm
al
ly
cl
os
ed
ex
ternal
te
st
(IN
1)
G
N
D
1.
1
1.
2
2.
1
2.
2
2.
3
3.
1
3.
2
• X 1.1 L mains connection
• X 1.2 N mains connection
L = Outer conductor
N = Outer conductorw
Terminal assignment low voltage (operating voltage)
X 1
X 2 X 3
1 2 1 2 3 1 2
ph
as
e
ne
ut
ra
l
normall
y
op
en
co
m
m
on
no
rm
ally
clo
se
d
external
te
st
(I
N
1)
G
N
D
1.
1
1.
2
2.1 2.
2
2.
3
3.
1
3.
2
• X 1.1 L Power supply
• X 1.2 N Power supply
1.
2.
.
4.
5.
6.
Terminal assignment of the potential-free contact and of
the external test)
X 1 X 2 X 3
1 2 1 2 3 1 2
po
w
er
po
w
er
no
rm
al
ly
op
en
co
m
m
on
no
rm
al
ly
cl
os
ed
external
te
st
(IN
1)
G
N
D
1.
1
1.
2
2.
1
2.
2
2.
3
3.
1
3.
2
Alarm/potential-free:
• X 2.1 n.o.
• X 2.2 com.
• X 2. n.c.
n.c. - com. Closed in the
event of malfunction or
power failure (closed-
current principle)
n.o. - com. Closed during
normal operation
The contacts X2.1 - 2. are
potential-free.
External test/remote
control:
• X .1 externer Test (IN1)
• X .2 GND
Contacts connected = test
active = discharge
Contacts open = test
inactive
The contacts X .1 -.2 are
not potential-free.
NOTE
At a low voltage supply (< 50 VAC / < 75 VDC), only use a
protective extra-low-voltage (PELV).
Tighten the threaded cable connection with a slightly
sealing effect.