11
TTL / HTL - Encoder Interface
1.5 Description of inputs X3A and X3B
PIN
Name
Description
2
HTL B+
HTL input track B+
3
A-
Differential signal to A+
4
B-
Differential signal to B+
7
HTL A+
HTL input track A+
8
A+
Incremental encoder track A
9
B+
Incremental encoder track B
11
24 V
Voltage output 20...30 V, power supply for the encoders
12
5 V
Voltage output 5 V
13
COM
Reference potential for voltage supply
14
N-
Difference signal to N+ (currently not supported)
15
N+
Zero track (currently not supported)
-
GND
Connection for shield at connector housing - is directly connected with
the inverter earth.
Socket X3A
1.6 Power supply
1.6.1 Max. load capacity in dependence of voltage supply
Max. load capacity at 24 V:
170 mA
Max. load capacity at 5 V:
400 mA
Max. load capacity in case of external supply 1 A (dependent on external voltage source)
The specified currents are reduced by the current taken from the second interface (see appli-
cation manual Chapter 6.10). In the case the specified currents are not sufficient an external
supply can be connected via the control unit (see application manual Chapter 3.1).
5
4
3
2
1
10
9
8
7
6
15
14 13 12 11
� � � � � � � �
PIN
Name
Description
1
NO contact
Error relay NO contact
2
NC contact
Error relay NC contact
3
Switching
contact
Error relay switching contact
4
HTL A+
HTL input track A+ (parallel with X3A.7)
5
HTL B+
HTL input track B+ (parallel with X3A.2)
6
+24 V
Voltage output 20...30 V, power supply for the encoders
7
COM
Reference potential for voltage supply
8
GND
Connection for shield - is directly connected with the inverter earth.
Terminal strip X3B
