3-11
3-1 Servo Drive Specifications
3
Specifications
Function: Internally Set Speed Selection 1
 Pin 6 is the Internally Set Speed Selection 1 Input (VSEL1) in Internal Speed Control Mode (when
Pn02 is set to 1).
 Four speeds can be selected by using pin 6 in combination with the Internally Set Speed Selection
2 Input (VSEL2).
îš„ Reverse Drive Prohibit/Forward Drive Prohibit Input
Pin 7: Reverse Drive Prohibit Input (NOT)
Pin 8: Forward Drive Prohibit Input (POT)
Functions
 These inputs prohibit forward and reverse operation (overtravel).
 When an input is ON, operation is possible in that direction.
 These inputs can be disabled using the setting of Drive Prohibit Input Selection (Pn04).
 The motor will stop according to the setting of the Stop Selection for Drive Prohibition Input (Pn66).
 Reverse Pulse/Forward Pulse, Feed Pulse/Direction Signal, 90° Phase Difference
Signal (Phase A/Phase B)
Pin 22: +Reverse Pulse (+CW), +Feed Pulse (+PULS), or +Phase A (+FA)
Pin 23: −Reverse Pulse (−CW), −Feed Pulse (−PULS), or −Phase A (−FA)
Pin 24: +Forward Pulse (+CCW), +Direction Signal (+SIGN), or +Phase B (+FB)
Pin 25: −Forward Pulse (−CCW), −Direction Signal (−SIGN), or −Phase B (−FB)
Functions
The functions of these signals depend on the setting of the Command Pulse Mode (Pn42).
 If the photocoupler LED is turned ON, each signal will go high as shown above.
Setting Command pulse mode Input pins Servomotor forward command Servomotor reverse command
0 or 2
90° phase difference
signals
22: +FA
23: −FA
24: +FB
25: −FB
Line driver: t1 ≥ 2 µs
Open collector: t1 ≥ 5 µs
1
Reverse pulse/forward
pulse
22: +CW
23: −CW
24: +CCW
25: −CCW
Line driver: t2 ≥ 1 µs
Open collector: t2 ≥ 2.5 µs
3
Feed pulse/direction
signal
22: +PULS
23: PULS
24: SIGN
25: −SIGN
Line driver: t2 ≥ 1 µs
Open collector: t2 ≥ 2.5 µs
t1 t1 t1 t1
t1 t1t1 t1
Phase A
Phase B
t2 t2
t2
t2
t2
Low
Low
t2
High
Low
t2t2
t2 t2 t2 t2
t2
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