03.99
Diagnosis and troubleshooting
Siemens AG
6SE7087-6NX84-0GB0
SIMOVERT MASTERDRIVES
Operating Instructions
6-7
6.2
Fault displays and alarms on the basic unit
If errors/faults occur in initialization of CBL, corresponding errors or
alarms are also displayed on the PMU or OP1S of the basic unit.
Alarm
Meaning
A 035
Alarm message from converter:
After power-up till data transmission between PLC cpu and CBL the alarm
message A035 will occur and will be displayed (control bits 11 and 12 equals
0!). The duration depends on the converter type and the configuration (tech
board plugged?) and take some seconds. After starting data transmission via
CC-Link to PLC cpu the alarm will be automatically cleared.
Invalid P715
Invalid P716
Invalid P717
A 081
A 082
A 083
A 084
Invalid P718
•
Wrong parameter number (parameter of technology board)
•
Parameter number according to technology board and technology
board not plugged
⇒
Change
parameter
value
A 085
Invalid P712
•
invalid switches (bits) are activated in P712
⇒
Check P712 and change parameter value
A 086
CBL is waiting for scaling parameters
•
CBL requests the scaling parameters and is waiting for reply; Tech
board or base board perhaps in initialization mode.
If CBL don’t clear this warning after a time period
⇒
Check converter status
⇒
Check base board or tech board
A 087
CBL hardware error
•
CBL detects hardware error
•
CBL detects improper state
•
CBL not correctly inserted into the electronics box
⇒
Restart converter
⇒
Check connection between converter (CU) and CBL
⇒
Replace
CBL
A 088
CBL communication error
•
CBL detects improper status at communication with CU
•
CBL not correctly inserted into the electronics box
⇒
Restart converter
⇒
Check connection between converter (CU) and CBL
⇒
Replace
CBL
⇒
Replace
CU
A 089
...
A 096
Warnings of second CB
subtract 8 and look for the warning code documentation of used (second)
CB.
•
Possible cause
⇒
Remedy
Table 6-16
Alarm displays on the basic unit
Alarms
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