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8.4 Encoder installation

1) AC1 card is fit for different types of encoder. To control AC motor with Zapi

inverter, it is necessary to install an incremental encoder with 2 phases

shifted of 90°. The encoder power supply can be +5 or +12V. It can have

different electronic output.

A9 +5V/+12V positive of encoder power supply.

A10 GND negative of encoder power supply.

A19 A phase A of encoder.

A20 B phase B of encoder.

2) Connection of encoder with open collector output; +5V power supply.

3) Connection of encoder with open collector output: +12V power supply.

VERY IMPORTANT

It is necessary to specify in the order the type of encoder used, in terms of

power supply, electronic output and n° of pulses for revolution, because

the logic unit must be set in the correct way by Zapi.

The n° of pulses revolution the controller can handle is given by the

second-last letter in the software release name (see 3.5).

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