
16 15
16
15
16
15
80
ERN 1123, ERN 1326 pin layout
17-pin
fl ange socket,
M23
16-pin PCB connector 15-pin PCB connector
Power supply Incremental signals
7 1 10 11 15 16 12 13 3 2
1b 2b 1a / 5b 5a 4b 4a 3b 3a
13/14/ 1 2 3 4 5 6
U
P
Sensor
U
P
0 V Internal
shield
U
a1
U
a2
U
a0
Brown/
Green
Blue White/
Green
/ Green/
Black
Yellow/
Black
Blue/
Black
Red/
Black
Red Black
Other signals Cable shield connected to housing;
U
P
= Power supply voltage
Sensor: The sensor line is
connected in the encoder with the
corresponding power line.
Vacant pins or wires must not be
used!
456141798
2a 8b 8a 6b 6a 7b 7a
/789101112
UU
VVWW
White Green Brown Yellow Violet Gray Pink
Pin layout for ERN 1023
Power supply Incremental signals Other signals
U
P
0 V U
a1
U
a2
U
a0
UUVVWW
White Black Red Pink Olive
Green
Blue Yellow Orange Beige Brown Green Gray Light
Blue
Violet
Cable shield connected to housing;
U
P
= Power supply voltage
Vacant pins or wires must not be used!
Commutation signals for block commutation
The block commutation signals U, V and
W are derived from three separate
absolute tracks. They are transmitted as
square-wave signals in TTL levels.
The ERN 1x23 and ERN 1326 are rotary
encoders with commutation signals for
block commutation.
Comprehensive descriptions of all
available interfaces as well as general
electrical information is included in the
Interfaces for HEIDENHAIN Encoders
brochure, ID 1078628-xx.
Antriebsgeber_en_2013.indd 80 12.11.2013 06:56:11
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