4
Installation
74
Festo – GDCP-CMMO-ST-EA-SY-EN – 2017-05c – English
4.3.3
[X2] Encoder
An incremental encoder with AB signals in accordance with RS422 can be connected at connection [X2].
The ready-to-use cables from Festo (
è
www.festo.com/catalogue) offer sufficiently large cable cross
sections as well as screening of the motor/encoder cable with earth contact on both sides for connec
ted components.
Connection
Pin
Function
X2
1
8
1
8
1
Incremental encoder signal A+
2
A/
Incremental encoder signal A–
3
B
Incremental encoder signal B+
4
Incremental encoder signal B–
5
Incremental sensor signal zero impulse
6
Incremental sensor signal zero impulse
7
+5 V
Supply of the sensor
– +5 V ± 10 %
– Max. 100 mA
– No overload protection
8
GND
Reference potential 0 V
1)
At each pin: 5 V and Ri = approx. 120 Ω
Tab. 4.6
Encoder connection [X2]
Note
Damage to the device in the event of an overload
Pin 7 (+5 V Out) is not overload-proof (max. 100 mA).
Only use to supply power to the incremental sensor.