Mitsubishi Electric MELSERVO-JE MR-JE-100A, Instruction Manual

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4. STARTUP
4 - 21
(3) Status display list
The following table lists the servo statuses that may be shown. Refer to appendix 4 for the measurement
point.
Status display Symbol Unit Description
Cumulative feedback pulses C pulse
Feedback pulses from the servo motor encoder are counted and displayed.
The values in excess of ±99999 can be counted. However, the counter shows
only the lower five digits of the actual value since the servo amplifier display is
five digits.
Press the "SET" button to reset the display value to zero.
The value of minus is indicated by the lit decimal points in the upper four digits.
Servo motor speed r r/min
The servo motor speed is displayed.
It is displayed rounding off 0.1 r/min unit.
Droop pulses E pulse
The number of droop pulses in the deviation counter are displayed.
The decimal points in the upper four digits are lit for reverse rotation pulses.
The values in excess of ±99999 can be counted. However, the counter shows
only the lower five digits of the actual value since the servo amplifier display is
five digits.
The number of pulses displayed is in the encoder pulse unit.
Cumulative command pulses P 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.
The values in excess of ±99999 can be counted. However, the counter shows
only the lower five digits of the actual value since the servo amplifier display is
five digits.
Press the "SET" button to reset the display value to zero.
When the servo motor is rotating in the reverse direction, the decimal points in
the upper four digits are lit.
Command pulse frequency n 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).
1) Torque control mode
Input voltage of VLA (Analog speed limit) voltage is displayed.
Analog speed command
voltage
Analog speed limit voltage
F V
2) Speed control mode
Input voltage of VC (Analog speed command) voltage is displayed
1) Position control mode and speed control mode
Voltage of TLA (Analog torque limit) voltage is displayed.
Analog torque command
voltage
Analog torque limit voltage
U V
2) Torque control mode
Voltage of TC (Analog torque command) voltage is displayed.
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 current of 100
%.
Instantaneous torque T %
The instantaneous occurrence 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.
The values in excess of ±99999 can be counted. However, the counter shows
only the lower five digits of the actual value since the servo amplifier display is
five digits.
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 servo motor rotates in the CCW direction, the value is added.
ABS counter LS rev Travel distance from power on is displayed by counter value.
Load to motor inertia ratio dC Multiplier
The estimated ratio of the load inertia moment to the servo motor shaft inertia
moment is displayed.