
Commissioning
5.8 Commissioning the Encoder
Control Units CU240S
Operating Instructions, 10/2007, A5E00766042B AC
105
CAUTION
Use of unscreened cables is possible, however we recommend the use of screened cables,
in order to fulfill the EMC requirements for the CE marking and fail-safe products (CU240S
DP-F).
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.
The encoder voltage is using the general I/O DIP switches 3 and 4.
The following table shows the possible settings:
Table 5-12 Encoder voltage settings
On
OFF
34
9(QFRGHU
VXSSO\
9(QFRGHU
VXSSO\
34
9(QFRGHU
VXSSO\
9(QFRGHU
VXSSO\
34
9(QFRGHU
VXSSO\
9(QFRGHU
VXSSO\
34
9(QFRGHU
VXSSO\
9(QFRGHU
VXSSO\
Encoder supply
voltage
0 V 24 V 5 V 24 V
Encoder type No encoder HTL encoder TTL encoder HTL encoder
WARNING
DIP switches 3 or 4 in ON position provide a supply voltage of 24 V to the encoder.
Therefore it is not allowed to connect a TTL encoder to the inverter if one of the DIP
switches, 3 or 4 are in ON position.
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