ABB FEN-11 Quick Manual page 3

TTL Encoders
• TTL incremental encoder, 1...65535 pulses / rev, supports reference
mark
Setting the supply voltage X301
WARNING! Selecting the wrong supply voltage may damage or break the
encoder.
The supply voltage for an absolute encoder and a TTL encoder can be
selected by vertically mounted jumpers as described by the following
figure.
TTL Encoder (X41)
+24 V
Note: If an external power supply is used, the appropriate jumper must
be removed.
Note: If another FEN interface's TTL emulation output is connected to
TTL input, the appropriate jumper must be removed.
Mounting
WARNING! Before installation, do the electrical safety precautions given
in section
Note: Before mounting the module, set the supply voltage jumpers as
described above.
Numbers in brackets refer to the layout drawing in section Layout and
connections (Page 5).
1. Pull out the locking tab (8).
Absolute encoder (X42)
+5.5 V
Safety instructions (Page
+5.5 V +8 V
2).
Quick guide - FEN-11
3