46
English
7. Electrical connections
22
21
20
19
18
17
16
15
8
7
6
5
4
3
2
1
26
25
24
23
14
13
11
9
L
ON
W
ORKS®
Interface
UL2
UL1
UL1
UL3
IL1
IL2
IL3
N
RS 232
Function
Connection
Measuring input
AC current IL1
1 / 3
IL2
4 / 6
IL3
7 / 9
AC voltage UL1
2
UL2
5
UL3
8
N
11
15
16
23
24
25
26
Power supply
AC
~
13
~
14
DC
+
13
–
14
Measuring inputs
System /
application
Terminals
Single-phase
AC system
Front
IL1
IL2
IL3
Measuring input
L
ON
W
ORKS®
Interface
Signal
Service pin
Signal Service
pin
If power supply is taken from the measured voltage
internal connections are as follow:
Application (system)
Internal connection
Terminal / System
Single-phase AC current
2 / 11 (L1 – N)
4-wire 3-phase
2 / 11 (L1 – N)
symmetric load
All other (apart from
2 / 5
(L1 – L2)
A15 / A16 / A24)
Find and Signal
(terminals 23 and 24)
By polling the L
ON
W
ORKS®
network, it is possible to
determine the neuron ID’s of the various devices
connected. A signal prompts the particular device to
identify itself. A LED (e.g. HLMP, Order No. 970 881)
connected to terminals 23 and 24 flashes briefly.
Service pin
(terminals 25 and 26)
A device is made to send its Neuron-ID by
short-circuiting terminals 25 and 26.
L1
N
11
3
1
2
L1
N
k
l
K
L
2
11
3
1
L1
N
v
V
u
U
k
l
K
L
2
11
3
1
–