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3. SIGNALS AND WIRING

3.4.2 Internal speed control mode

(1) Speed setting

(a) Speed command and speed

The servo motor is run at the speeds set in the parameters.

Forward rotation (CCW)

Reverse rotation (CW)

The following table indicates the rotation direction according to forward rotation start (ST1) and
reverse rotation start (ST2) combination:

(Note) External input signals

Rotation direction

ST2

ST1

Internal speed commands

Stop (Servo lock)

CCW

Stop (Servo lock)

Note.0: ST1/ST2-SG off (open)

1: ST1/ST2-SG on (short)

The forward rotation start signal (ST1) and reverse rotation start signal (ST2) can be assigned to
any pins of the connector CN1 using parameters No. 43 to 48.
Generally, make connection as shown below:

ST1

ST2

Servo amplifier