MHT258a (Engl.)5-48
・Positioning end judgment time
The output timing of positioning end signal is shown below.
1) The command current position reaches the target position.
2) The motor’s feedback current position follows the command current position to reach the target position.
3) When the difference (deviation) between the command position and the feedback position is less than the deviation zero width (zone)
(basic para. 53), the deviation zero signal is turned on.
4) When the deviation zero signal is continuously held on during the positioning end judgment time (basic para. 57), the positioning end
signal [PSET] is turned on.
Basic parameter 57
Para. Name Setting range Initial value Change
57 Positioning end judgment time 0.000 to 1.000 [s] (in 0.001s steps) 0.050 Always
・Positioning end [PSET] output at alarm detection
Cause Deceleration form Positioning end [PSET] Remarks
Run command [RUN]
off
“Forced zero speed”
to “base off”
On at stopping Ready [RDY] off
Forced stop [EMG] off Forced zero speed Off On at forced stop [EMG] release
OT detection
Soft OT detection
“Forced zero speed”
to “ servo lock”
On at stopping Movable when pulse train input, forward
command or reverse command on
Alarm detection
(minor fault)
“Forced zero speed”
to “base off”
Off at stopping Turns on when reset by alarm reset
[RST]
Alarm detection
(major fault)
Base off Off at stopping Turns on when reset by alarm reset
[RST]
Note : Minor fault … Deviation over [OF], Resistor overheat [rH], Amplifier overheat [AH], Encoder overheat [EH] and Bus communication
error [tE]
Major fault … Alarm detection other than minor fault
Forced zero speed … Decelerates to a stop by regenerative braking torque (maximum braking torque)
Base off … Motor has no driving force (free-run)
Time
OFF
OFF
ON
ON
Deviation zero width (basic para. 53)
Speed
Deviation zero
Positioning end [PSET]
Positioning end judgment time (basic para. 57)