Setting The Supply Voltage - ABB FEN-01 User Manual

16 Installation

Setting the supply voltage

WARNING!
Selecting the wrong supply voltage may damage or break the encoder.
A selectable supply voltage is provided for the TTL encoders' input. A +5.5 V or a +24 V
voltage for either TTL encoder can be selected by vertically mounted jumpers as
described by the following figure.
TTL Encoder (X31)
+24 V
+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.
TTL+ Encoder (X32)
+5.5 V +5.5 V
+5.5 V +5.5 V
+8 V
+24 V