Mitsubishi Electric MELSEC Q Series Programming Manual page 225

6 TROUBLESHOOTING
Error Detail
code code Error contents
(SD32) (SD33)
PLC CPU safety

226 communication
cycle error
Safety
Error code
communication
227
(Note-9)
internal processing
error
(Note-1): The system setting error [SAFETY SYS.ERR.] simultaneously occurs.
(Note-2): Reset is possible by turning the PLC ready flag (M2000) ON from OFF or the Motion error detection flag (M2039) OFF from ON.
(Note-3): Regardless of whether the CPU where an error is detected is the PLC CPU or the Motion CPU, the safety signal module device number of the PLC
CPU is displayed. When errors are detected on several device numbers, the smallest number is displayed.
(Note-4): Safety observation function parameter setting error detail codes.
Detail code
(SD33)
H0001 Error of the number of the safety signal modules
H0002 Error of the safety signal mismatch allowance time
H0003 Safety signal module 1 device No. error at the PLC CPU side
H0004 Safety signal module 1 device No. error at the Motion CPU side
H0006 Safety signal module 2 device No. error at the PLC CPU side
H0007 Safety signal module 2 device No. error at the Motion CPU side
H0009 Safety signal module 3 device No. error at the PLC CPU side
H0010 Safety signal module 3 device No. error at the Motion CPU side
H0013 Error of the safety observation function parameter CRC
H0015 Out of range of multiple CPU area device address (CPU No.1)
H0016 Out of range of multiple CPU area device address (CPU No.2)
When the speed monitoring function is used, the multiple CPU area device address
H0017
(CPU No.1/CPU No.2) is an odd number
H 40 Error of the speed monitor axis No.
H 41 Error of the speed monitor error detection time
H 42 Error of the axis unit setting
H 43 Error of the number of pulses per revolution
H 44 Error of the travel value per revolution
H 45 Error of the motor encoder resolution
H 46 Error of the number of pulses per external sensor rotation
H 47 Error of the travel value per external sensor rotation
H 48 Error of the safety speed
H 49 Error of the safety motor speed
H 50 Error of the allowance value of position deflection
H 51 Error of the allowance value of speed deflection
H 52 Error of the SSM hysteresis width
H 53 Error of the SSM output Y device number
H 54 Error of the external sensor input X device number
H 55 Error of the speed monitor I/O device No.
H 56 The SSM output Y device number is not the number on the safety signal module.
H 57 The external sensor input X device number is not the number on the safety signal module.
H 58 The speed monitor I/O device number is the number on the safety signal module.
At the setting of the safety operating stop, the external sensor input X device number is an odd number
H 60
(single-phase input mode)
H 61 When omitting external auxiliary pulse input, the safety speed setting is 0.
Error cause
• "SNT_CMP" is not registered in [PLC
parameter] → [Program] (when safety
communication function is being used).
• The PLC CPU processing time exceeded
the processing time necessary for safety
communication processes.
An error is detected in the internal
processing check for safety
communication.
Corrective action
Review the PLC parameter settings.
Set the safety communication cycle longer,
reduce the number of PLC CPU program
steps, or increase the number of PLC CPUs
etc. so that there is enough processing time
for the PLC CPU.
Check the PLC software version (serial No.)
Explain the error symptom and get advice
from our sales representative.
Description
6 - 6
Relevant CPU
Reset
PLC Motion
CPU CPU


Parameter type
Safety signal
comparison
parameter
Speed monitoring
parameter