SI25101B_e.DOC / Mrz-08
Page 8 / 16
4.
Pin assignment of SUB-D-connectors
4.1.
Sine/Cosine inputs
Standard encoders with differential outputs can be connected directly to the corresponding pins
SIN+, SIN-, COS+, COS-, REF+, REF-.
Where longer cables must be used, terminating resistors between the non-inverted and the
inverted signal of each channel may be of advantage.
COS+ SIN- SIN+
GND
REF- REF+
COS-
1
2
3
4
5
9
8
6
7
Vm
Encoder supply from terminal 1
SIN+
SIN-
COS+
COS-
REF+
REF-
3
2
1
9
7
6
GND
GND
With sensors using single-ended outputs, the sensor signals SIN, COS and REF are connected
to the corresponding input pins. The inverted inputs of the unit are tied to either the mean
voltage output V
m
(pin 8) of the unit, or to a corresponding voltage reference of the sensor itself
SIN+
COS+
REF+
3
2
1
9
7
6
GND
GND
Vm1
Vm2
