15 - 56
MELSEC-Q
15 TROUBLESHOOTING
15.2.4 MR-J2S-B detection error
Classifica
tion of
errors
Error
code
LED
indicator
of servo
amplifier
Error name
Description
Cause
The power supply voltage is low.
There was an instantaneous control
power failure of 60ms or longer.
Shortage of power supply capacity
caused the power supply voltage to
drop at start, etc. .
Power was restored after the bus
voltage had dropped to 200VDC.
(Main circuit power switched on
within 5s after it had switched off.)
2010
10
Under voltage
•For MR-J2S-
B:
The power supply voltage dropped
to 160VAC or less.
• For MR-J2S-
B1:
The power supply voltage dropped
to 83VAC or less.
Faulty parts in the servo amplifier.
2012
12
Memory error 1 RAM memory error.
2013 13
Clock
error Printed
circuit
board fault.
2015
15
Memory error 2 EEP-ROM error
Faulty parts in the servo amplifier.
The encoder connecter (CN2) is
disconnected.
Fault in the encoder.
2016
16
Encoder error 1
Communication error occurred
between encoder and servo amplifier.
Encoder cable fault. (Wire breakage
or shot)
2017
17
Board error 2
CPU or parts of the circuit fault.
2019
19
Memory error 3 ROM memory error.
Faulty parts in the servo amplifier.
2020 1A
Servomotor
combination
error
Wrong combination of servo amplifier
and servomotor.
Wrong combination of servo
amplifier and servomotor
connected.
The encoder connecter (CN2) is
disconnected.
Fault in the encoder.
2020
20
Encoder error 2
Communication error occurred
between encoder and servo amplifier.
Encoder cable fault. (Wire breakage
or shot)
Power input wires and servomotor
output wires are in contact at main
circuit terminal block (TE1).
2024 24
Motor output
side ground fault
Servomotor output (U, V, W phase)
ground fault.
Sheathes of servomotor power
cables deteriorated, resulting in
ground fault.
Voltage low in the super capacitor in
the encoder.
Battery voltage low.
Absolute position data in error.
Battery cable or battery fault.
Servo
amplifier
errors
2025 25
Absolute position
lost
Power was switched on for the first
time in the absolute position detection
system.
Super capacitor of the absolute
position encoder is not charged.
Summary of Contents for QD75M1
Page 17: ...MEMO...
Page 71: ...3 20 MELSEC Q 3 SPECIFICATIONS AND FUNCTIONS MEMO...
Page 87: ...4 16 MELSEC Q 4 INSTALLATION WIRING AND MAINTENANCE OF THE PRODUCT MEMO...
Page 98: ...5 11 MELSEC Q 5 DATA USED FOR POSITIONING CONTROL MEMO...
Page 104: ...5 17 MELSEC Q 5 DATA USED FOR POSITIONING CONTROL MEMO...
Page 108: ...5 21 MELSEC Q 5 DATA USED FOR POSITIONING CONTROL MEMO...
Page 112: ...5 25 MELSEC Q 5 DATA USED FOR POSITIONING CONTROL MEMO...
Page 122: ...5 35 MELSEC Q 5 DATA USED FOR POSITIONING CONTROL MEMO...
Page 134: ...5 47 MELSEC Q 5 DATA USED FOR POSITIONING CONTROL MEMO...
Page 178: ...5 91 MELSEC Q 5 DATA USED FOR POSITIONING CONTROL MEMO...
Page 184: ...5 97 MELSEC Q 5 DATA USED FOR POSITIONING CONTROL MEMO...
Page 190: ...5 103 MELSEC Q 5 DATA USED FOR POSITIONING CONTROL MEMO...
Page 249: ...5 162 MELSEC Q 5 DATA USED FOR POSITIONING CONTROL MEMO...
Page 270: ...6 21 MELSEC Q 6 SEQUENCE PROGRAM USED FOR POSITIONING CONTROL...
Page 271: ...6 22 MELSEC Q 6 SEQUENCE PROGRAM USED FOR POSITIONING CONTROL...
Page 272: ...6 23 MELSEC Q 6 SEQUENCE PROGRAM USED FOR POSITIONING CONTROL...
Page 273: ...6 24 MELSEC Q 6 SEQUENCE PROGRAM USED FOR POSITIONING CONTROL...
Page 274: ...6 25 MELSEC Q 6 SEQUENCE PROGRAM USED FOR POSITIONING CONTROL...
Page 275: ...6 26 MELSEC Q 6 SEQUENCE PROGRAM USED FOR POSITIONING CONTROL...
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Page 288: ...6 39 MELSEC Q 6 SEQUENCE PROGRAM USED FOR POSITIONING CONTROL...
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Page 291: ...6 42 MELSEC Q 6 SEQUENCE PROGRAM USED FOR POSITIONING CONTROL...
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Page 293: ...6 44 MELSEC Q 6 SEQUENCE PROGRAM USED FOR POSITIONING CONTROL...
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Page 297: ...6 48 MELSEC Q 6 SEQUENCE PROGRAM USED FOR POSITIONING CONTROL...
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Page 301: ...6 52 MELSEC Q 6 SEQUENCE PROGRAM USED FOR POSITIONING CONTROL...
Page 328: ...7 7 MELSEC Q 7 MEMORY CONFIGURATION AND DATA PROCESS MEMO...
Page 332: ...7 11 MELSEC Q 7 MEMORY CONFIGURATION AND DATA PROCESS MEMO...
Page 339: ...MEMO...
Page 529: ...11 36 MELSEC Q 11 MANUAL CONTROL MEMO...
Page 621: ...12 92 MELSEC Q 12 CONTROL SUB FUNCTIONS MEMO...
Page 647: ...14 18 MELSEC Q 14 DEDICATED INSTRUCTIONS MEMO...
Page 755: ...Appendix 2 MELSEC Q APPENDICES MEMO...
Page 758: ...Appendix 5 MELSEC Q APPENDICES Axis address mm inch degree PLS Axis address mm inch degree PLS...
Page 879: ...Index 14 MEMO...