2. SIGNALS AND WIRING
2 - 18
Device Symbol
Connector
pin No.
Function and application
I/O
division
Control
mode
CP CL
Zero speed
detection
ZSP CN1-23 ZSP turns on when the servo motor speed is at zero speed or less. Zero
speed can be changed with [Pr. PC17].
Forward
rotation
direction
OFF
ON
Servo motor
speed
20 r/min
(Hysteresis width)
[Pr. PC17]
20 r/min
(Hysteresis width)
OFF level
-70 r/min
ON level
-50 r/min
ON level
50 r/min
OFF level
70 r/min
Reverse
rotation
direction
0 r/min
[Pr. PC17]
ZSP
(Zero speed
detection)
1)
3)
2)
4)
ZSP turns on when the servo motor is decelerated to 50 r/min (at 1)), and
turns off when the servo motor is accelerated to 70 r/min again (at 2)).
ZSP turns on when the servo motor is decelerated again to 50 r/min (at
3)), and turns off when the servo motor speed has reached -70 r/min (at
4)).
The range from the point when the servo motor speed has reached the
on-level, and ZSP turns on, to the point when it is accelerated again and
has reached the off-level is called hysteresis width.
Hysteresis width is 20 r/min for this servo amplifier.
DO-1
Electromagnetic
brake interlock
MBR When using the device, set an operation delay time of the
electromagnetic brake in [Pr. PC16].
When a servo-off status or alarm occurs, MBR turns off.
DO-1
Speed command
reached
SA SA turns on when the command speed reaches the target speed in
servo-on status.
SA is always on when the command speed is 0 r/min in servo-on status.
SA turns off in servo-off status or when the command speed is in
acceleration/deceleration.
DO-1
Home position
return
completion
ZP When a home position return completes normally, ZP (Home position
return completion) turns on.
It turns off with the following conditions in the incremental system.
1) SON (Servo-on) is off.
2) EM2 (Forced stop 2) is off.
3) RES (Reset) is on.
4) At alarm occurrence
5) LSP (Forward rotation stroke end) or LSN (Reverse rotation stroke
end) is off.
6) Home position return is not being executed.
7) Software limit is being detected.
8) Home position return is in progress.
DO-1
Rough match CPO When a command remaining distance is lower than the rough match
output range set with [Pr. PT12], CPO turns on. This is not outputted
during base circuit shut-off. CPO turns on with servo-on.
DO-1
Position range
output
POT When an actual current position is within the range set with [Pr. PT21]
and [Pr. PT22], POT turns on. This will be off when a home position
return is not completed or base circuit shut-off is in progress.
DO-1
During a
temporary stop
PUS When a deceleration begins for a stop, PUS turns on by TSTP
(Temporary stop/restart). When TSTP (Temporary stop/restart) is
enabled again and an operation is restarted, PUS turns off.
DO-1
Travel
completion
MEND When the droop pulses are within the in-position output range set with
[Pr. PA10] and the command remaining distance is "0", MEND turns on.
MEND turns on with servo-on.
MEND is off at servo-off status.
DO-1
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