Siemens SINAMICS G120 Operating Instructions Manual page 165

Procedure of encoder commissioning
To commission the Encoder, the following procedure should be performed:
Table 5-42
Step
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
Note
The cable from the encoder to the Encoder Module should be one complete length.
TTL-encoder specific
If the encoder type is a TTL differential and a long cable length is required (>50 m), DIP
switches 5, 6, and 7 may be set to ON.
If the encoder type is a TTL single-ended encoder, there will be a three wires for the 'A', 'B'
and 'Z' Channels.
HTL-encoder specific
The terminating impedance which is selected using the DIP-switches must not be used in
conjunction with an HTL encoder.
Control Units CU240S
Operating Instructions, 11/2006, A5E00766042B AA
Commissioning the Encoder
Description
Ensure the Inverter is switched off.
Connect the Channel A wire from the encoder to terminal 70 (ENC AP) on the
Control Unit.
Connect the Channel A inverted wire from the encoder to terminal 71 (ENC
AN) on the Control Unit.
Connect the Channel B wire from the encoder to terminal 72 (ENC BP) on the
Control Unit.
Connect the Channel B inverted wire from the encoder to terminal 73 (ENC
BN) on the Control Unit.
Connect the Channel Z wire from the encoder to terminal 74 (ENC ZP) on the
Control Unit.
Connect the Channel Z inverted wire from the encoder to terminal 75 (ENC
ZN) on the Control Unit.
Connect the positive power cable to terminal 33 (ENC+ SUPPLY) on the
Control Unit.
Connect the negative power cable to terminal 28 (U0V) on the Control Unit.
Switch the general I/O DIP-switch 4 (5 V) to the ON position (TTL)
Switch the general I/O DIP-switch 3 (24 V) to the ON position. (HTL)
Check that all the connections have been made correctly and the DIP-switch
is in the correct position.
Switch the inverter ON.
The Encoder interface now requires to be parameterized. A flow chart that
shows the required parameters is given in the following section.
Commissioning (software)
5.10 Encoder Commissioning
TTL
X
X
X
X
X
X
X
X
X
X
X
X
X
HTL
X
X
X
X
X
X
X
X
X
X
X
X
X
5-109