Sharp CP-SR421 User Manual Page 59

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3. SIGNALS AND WIRING
3 - 18
3.5.2 Output device
(1) Output device pin
The following shows the output device pins and parameters for assigning devices.
Connector pin No. Parameter Initial device I/O division
CN3-13 [Pr. PD07] MBR
CN3-15 [Pr. PD09] ALM DO-1
CN3-9 [Pr. PD08] INP
(2) Output device explanations
Device Abbreviation Function and application
Electromagnetic
brake interlock
MBR When using the device, set operation delay time of the electromagnetic brake in [Pr. PC02].
When the servo-off status or alarm occurs, MBR will turn off.
Malfunction ALM When the protective circuit is activated to shut off the base circuit, ALM will turn off.
Without alarm occurring, ALM turns on about 2.5 s to 3.5 s after power-on.
In-position INP When the number of droop pulses is in the in-position range, INP will turn on. The in-position range
can be changed using [Pr. PA10]. When the in-position range is increased, INP may be on during
low-speed rotation.
INP turns on when servo-on turns on.
The device cannot be used in the speed control mode and torque control mode.
Ready RD RD turns on when the servo is switched on and the servo amplifier is ready to operate.
Speed reached SA SA will turn off during servo-off. When servo motor rotation speed reaches approximately target
speed, SA will turn on. When the preset speed is 20 r/min or less, SA always turns on.
The signal cannot be used in the position control mode and torque control mode.
limiting torque VLC When the speed reaches the speed limit value in the torque control mode, VLC will turn on. When
the servo is off, TLC will be turned off.
The device cannot be used in the position control mode and speed control mode.
Limiting torque TLC When the torque reaches the torque limit value during torque generation, TLC will turn on. When
the servo is off, TLC will be turned off.
This device cannot be used in the torque control mode.
Zero speed
detection
ZSP ZSP turns on when the servo motor speed is zero speed (50 r/min) or less. Zero speed can be
changed using [Pr. PC07].
OFF
ON
Servo motor
speed
20 r/min
(Hysteresis width)
[Pr. PC07]
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
0 r/min
[Pr. PC07]
ZSP
(Zero speed
detection)
1)
3)
2)
4)
Forward
rotation
direction
Reverse
rotation
direction
ZSP will turn on when the servo motor is decelerated to 50 r/min (at 1)), and will turn off when the
servo motor is accelerated to 70 r/min again (at 2)).
ZSP will turn on when the servo motor is decelerated again to 50 r/min (at 3)), and will turn 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 on level, and ZSP turns on, to
the point when it is accelerated again and has reached off level is called hysteresis width.
Hysteresis width is 20 r/min for this servo amplifier.
When you use a linear servo motor, [r/min] explained above will be [mm/s].
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