Setting The Supply Voltage - ABB FEN-21 User Manual

Resolver interface

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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 a TTL encoder can be selected by a jumper as described by the following

figure.

TTL Encoder (X51)

+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.

Not used

+5.5 V

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