3.1Setting User Constants According to Machine Characteristics
57
3) Use the following user constants (memory switch) to specify whether input signals for
overtravel are to be used.
Cn-01 Bit 2
Use of P-OT Input Signal Factory
Setting: 0
For Speed/Torque Control
and Position Control
Cn-01 Bit 3
Use of N-OT Input Signal Factory
Setting: 0
For Speed/Torque Control
and Position Control
Specifies whether the P-OT input signal for pro-
hibiting forward rotation at overtravel (1CN-16) is
to be used and whether the N-OT input signal for
prohibiting reverse rotation at overtravel
(1CN-17) is to be used.
Specifies “1” when external short-circuit wiring is
to be omitted.
Bit Setting Meaning
0
Uses the P-OT input signal for prohibiting forward rotation. (Forward
rotation is prohibited when 1CN-16 is open. Forward rotation is allowed
when 1CN-16 is at 0 V.)
Bit 2
1
Does not use the P-OT input signal for prohibiting forward rotation.
(Forward rotation is always allowed. This has the same effect as shorting
1CN-16 to 0 V.)
0
Uses the N-OT input signal for prohibiting reverse rotation. (Reverse
rotation is prohibited when 1CN-17 is open. Reverse rotation is allowed
when 1CN-17 is at 0 V.)
Bit 3
1
Does not use the N-OT input signal for prohibiting reverse rotation.
(Reverse rotation is always allowed. This has the same effect as shorting
1CN-17 to 0 V.)
4) If the P-OT and N-OT input signals are used, set the following user constants to specify
how to stop the motor.
Cn-01 Bit 8
How to Stop Motor at
Overtravel
Factory
Setting: 0
For Speed/Torque Control
and Position Control
Cn-01 Bit 9
Operation to be Performed
when Motor Stops after
Overtravel
Factory
Setting: 0
For Speed/Torque Control
and Position Control
• Inputs signal for prohibiting forward rotation
(P-OT, 1CN-16)
• Inputs signal for prohibiting reverse rotation
(N-OT, 1CN-17)
Specify how to stop the motor when either of the
above signals is input.
3
Servopack
The short-circuit wiring shown in the
figure can be omitted when P-OT and
N-OT are not used.
Overtravel
Stop mode After stop
Bit 6
Bit 8
Bit 9
0
0
1
1
Releasing
dynamic brake
Servo OFF
Zero-clamp
Stop by
dynamic brake
Coasting to a
stop
Deceleration
stop
0
1