Mr-J3-B Detection Warning - Mitsubishi Electric QD75MH1 User Manual

15 TROUBLESHOOTING

15.3.2 MR-J3-B detection warning

LED
Classifica
Warning display of
tion of
code the servo
warnings
amplifier
2102 92
2106 96
2116 9F
2140 E0
2141 E1
Servo
amplifier
2143 E3
warnings
2144 E4
2146 E6
2147 E7
2148 E8
Warning name
Open battery Absolute position detection
cable warning system battery voltage is low.
Home position Home position setting could not
setting warning be made.
Voltage of battery for absolute
position detection system
Battery warning
reduced.
There is a possibility that
regenerative power may
Excessive
exceed permissible
regenerative load
regenerative power of built-in
warning
regenerative brake resistor or
regenerative brake option.
There is a possibility that
Over load overload alarm 1 (error code:
warning1
2050) or 2 (error code: 2051)
may occur.
Absolute position Absolute position encoder
counter warning pulses faulty.
Parameter Parameter outside setting
warning range.
Servo forced stop
EM1-SG is open.
warning
Controller forced Forced stop input signal is input
stop warning to the QD75MH.
The speed of the servo
amplifier decrease to or below
the warning level.
Cooling fan speed
this warning is not displayed
reduction warning
with MR-J3-70B/100B among
servo amplifiers equipped with
a cooling fan.
15 - 56
Warning
Battery cable is open.
Battery voltage fell to 2.8VDC or less.
Droop pulses remaining are greater
than the in-position range setting.
Creep speed high.
Battery voltage fell to 3.2VDC or less.
Regenerative power increased to 85%
or more of permissible regenerative
power of built-in regenerative brake
resistor or regenerative brake option.
Load increased to 85% or more of
over load alarm 1 (error code: 2050)
or 2 (error code: 2051) occurrence
level.
Noise entered the encoder.
Fault of the encoder.
Parameter value set from QD75MH
controller is outside setting range.
Forced stop was made valid.
(EM1-SG was opened.)
Forced stop input signal of the
QD75MH is valid. (EMI (1A8) to
EMI.COM (1B8) in the SSCNET
cable is open.)
Fault of connector in the QD75MH.
A "watchdog error" will be occurred in
the QD75MH.
Cooling fan life expiration.
The power supply of the cooling fan is
broken.
MELSEC-Q
Cause