Signal Explanations - Mitsubishi Electric MELSERVO-JE Instruction Manual

2. DRIVE RECORDER
Signal name
Motor speed
Torque
Current command
Droop pulses
(1 pulse)
Droop pulses
(100 pulses)
Speed command
Bus voltage
Effective load ratio
ABS counter
Position within one-
revolution
Encoder error
counter 1
Encoder error
counter 2
U-phase current
feedback
V-phase current
feedback
Regenerative load
ratio
Command pulse
frequency
Internal temperature
of encoder
Temperature of motor
thermistor
Overload alarm
margin
Error excessive alarm
margin
CSON
SON
EMG
EM2/EM1
ALM2
INP
MBR
RD
STO (Note)
IPF
Note. This signal is not used for MR-JE servo amplifiers.
Table 2.4 Signal explanations
The servo motor speed is displayed.
The servo motor torque is displayed.
The value of torque occurring is displayed in real time by considering a rated torque as
100%.
This indicates the current command applying to the servo motor.
This indicates the number of droop pulses in the deviation counter in units of 1 pulse.
This indicates the number of droop pulses in the deviation counter in units of 100 pulses. [100 pulses]
This indicates the speed command applying to the servo motor.
This indicates the bus voltage at the converter of the servo amplifier.
The continuous effective load torque is displayed. This indicates the effective value for
past 15 seconds.
The travel distance from the home position is displayed as multi-revolution counter value
of the absolution position encoder in the absolution position detection system.
The position within one revolution is displayed in units of encoder pulses.
This indicates the cumulative number of errors during a communication with the encoder.
The same as encoder error counter 1
This indicates the U-phase current value applying to the servo motor in internal units.
This indicates the V-phase current value applying to the servo motor in internal units.
The ratio of regenerative power to permissible regenerative power is displayed in
percentage.
This indicates the command pulse frequency.
The encoder inside temperature detected by the encoder is displayed.
The thermistor temperature is displayed for the rotary servo motor with a thermistor.
This indicates margins to the levels which trigger [AL. 50 Overload 1] and [AL. 51
Overload 2] in percentage. When the value becomes 0%, the overload alarm occurs.
This indicates a margin to the level which triggers the error excessive alarm in units of
encoder pulses. When the value becomes 0 pulse, the error excessive alarm occurs.
This indicates the status of the servo-on signal from the controller.
This indicates the SON status of the external input signal.
This indicates the status of the emergency stop input.
This indicates the EM2/EM1 status of the external input signal.
This turns on when an alarm is detected in the servo amplifier. This changes faster than
ALM of the external output signal.
This indicates the INP status of the external output signal.
This indicates the MBR status of the external output signal.
This indicates the RD status of the external output signal.
This indicates the STO status of the external input signal.
This turns on when an instantaneous power failure occurs.
Description
2 - 6
Unit
[r/min]
[0.1%]
[0.1%]
[pulse]
[r/min]
[V]
[0.1%]
[rev]
[16 pulses]
[times]
[times]
[0.1%]
[1.125 kpps]
[°C]
[°C]
[0.1%]
[pulse]