7.1 Troubleshooting confirmations
7-4
7. Troubleshooting
(4) Check in status LED on motor drive DC power supply
○
: Light ON
×
: Light OFF
★
: Blinking
Status LED
Status
Drive
source
ALM signal
output
status
ALM ALM0 ALM1 ALM2
× × × × Normal - Close
×
★
× ×
Internal relay life count warning
(Note 1)
No Cutoff Close
× ×
★
×
Electrolytic capacitor life warning
(Note 1)
No Cutoff Close
× × ×
★
Fan revolution drop warning
(Note 1)
No Cutoff Close
○ ○ × × Motor power supply voltage drop No Cutoff Open
○ × ○ × Fan Error Detection Cutoff Open
○ × × ○
Excess regenerative electric discharge
Cutoff Open
○ ○ ○ ×
Motor power supply excess voltage
Cutoff Open
○ ○ × ○ PC board temperature error Cutoff Open
○ × ○ ○ Power device overheated Cutoff Open
○ ○ ○ ○ Critical malfunction Cutoff Open
○ ○ ○ ○
Initializing when power comes ON
* Both PWR and MP are on
- Open
Note 1 In case of occurrence in the same time, several
LED lamps flashes at the same time.
ALM
ALM0
ALM1
ALM2
Status LED
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