Mitsubishi Electric MR-J4, Instruction Manual

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18. MR-J4-03A6 SERVO AMPLIFIER
18 - 51
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Status display list
The following table lists the servo statuses that may be shown. Refer to appendix 8.3 (2) for the
measurement point.
Status display Symbol Unit Description
Cumulative feedback pulses
(1 pulse unit)
CL pulse
Feedback pulses from the servo motor encoder are counted and displayed.
When the count exceeds ±999, it starts from 0.
Negative value is indicated by the lit decimal points in the upper two digits.
Press the "SET" button to reset the display value to zero.
The internal counter subtracts 500000000 when the number exceeds
2000000000. In addition, The internal counter adds 500000000 when the number
exceeds -2000000000.
Cumulative feedback pulses
(1000 pulses unit)
Ch
1000
pulses
Servo motor speed
(10 r/min unit)
r1 10 r/min
The servo motor speed is displayed.
Negative value is indicated by the lit decimal points in the upper two digits.
Displays by 10 r/min unit.
Servo motor speed
(1 r/min unit)
r r/min
The servo motor speed is displayed.
Negative value is indicated by the lit decimal points in the upper two digits.
Droop pulses (1 pulse unit) EL pulse
The numbers of droop pulses in the deviation counter are displayed.
When the count exceeds ±999, it starts from 0.
The value displayed is not multiplied by the electronic gear (CMX/CDV).
Negative value is indicated by the lit decimal points in the upper two digits.
Droop pulses
(1000 pulses unit)
Eh
1000
pulses
Cumulative command pulses
(1 pulse unit)
PL pulse
Position command input pulses are counted and displayed.
As the value displayed is not yet multiplied by the electronic gear (CMX/CDV), it
may not match the indication of the cumulative feedback pulses.
When the count exceeds ±999, it starts from 0.
Negative value is indicated by the lit decimal points in the upper two digits.
Press the "SET" button to reset the display value to zero.
Cumulative command pulses
(1000 pulses unit)
Ph
1000
pulses
Command pulse frequency
(1 kpulse/s unit)
nL kpulse/s
The frequency of position command input pulses is counted and displayed.
The value displayed is not multiplied by the electronic gear (CMX/CDV).
Command pulse frequency
(1000 kpulses/s unit)
nh
1000
kpulses/s
Analog speed command
voltage
Analog speed limit voltage
F V
1) Torque control mode
Input voltage of VLA (Analog speed limit) voltage is displayed.
Negative value is indicated by the lit decimal points in the upper two digits.
2) Speed control mode
Input voltage of VC (Analog speed command) voltage is displayed.
Negative value is indicated by the lit decimal points in the upper two digits.
Analog torque command
voltage
Analog torque limit voltage
U V
1) Position control mode and speed control mode
Voltage of TLA (Analog torque limit) voltage is displayed.
Negative value is indicated by the lit decimal points in the upper two digits.
2) Torque control mode
Voltage of TC (Analog torque command) voltage is displayed.
Negative value is indicated by the lit decimal points in the upper two digits.
Regenerative load ratio L %
The ratio of regenerative power to permissible regenerative power is displayed
in %.
Effective load ratio J %
The continuous effective load current is displayed.
The effective value in the past 15 s is displayed relative to the rated current of
100 %.
Peak load ratio b %
The maximum occurrence torque is displayed.
The highest value in the past 15 s is displayed relative to the rated torque of
100 %.
Instantaneous torque T %
The instantaneous torque is displayed.
The value of torque being occurred is displayed in real time considering a rated
torque as 100%.
Within one-revolution position
(1 pulse unit)
Cy1 pulse
Position within one revolution is displayed in encoder pulses.
When the count exceeds 999, it starts from 0.
When the servo motor rotates in the CCW direction, the value is added.
Within one-revolution position
(1000 pulses unit)
Cy2
1000
pulses
The within one-revolution position is displayed in 1000 pulse increments of the
encoder.
When the count exceeds 999, it starts from 0.
When the servo motor rotates in the CCW direction, the value is added.