Panasonic MINAS E-series - Manual (Page 144)

144
Troubleshooting
What are Protective Functions?
The driver has various protective functions. If any of these functions activate, the motor stops immediately under
trip condition, and simultaneously the “Servo Alarm Output” (ALM) will turn OFF (reset).
Counteractions against motor trip
• When the motor trips, status display LED (STATUS) on the upper part of the front panel of the servo driver turns
red, and alarm code LED (ALM CODE) blinks. You cannot activate Servo-ON on longer.
If you are using the console, alarm code No. is displayed on the 7 segment LED display of the console and you
cannot activate Servo-ON.
• You can release the tripped condition by keeping the alarm clear input (A-CLR) CN X5 pin 3 ON for 120 ms or
longer.
• If the overload protective function activate, the alarm can be cleared according to Alarm Clear (A-CLR) signal
after elapse of 10 sec or more since alarm output. If the driver power is switched OFF, the overload time limit
characteristic (OVERLOAD) is cleared.
• The above alarms can be cleared even with the “PANATERM
®
”.
• Furthermore, the above alarms can be cleared even with the console.
• If any of *-marked functions in “Table of Protective Functions” acts, Alarm Clear Input (A-CLR)” is unable to be
reset (cleared). In such a case, after switching OFF the driver power, search and remove the cause and thereaf-
ter re-switch ON the same power for resetting the alarm.
(1) Status LED (STATUS)
(2) Alarm Code LED (ALM CODE)
Checking LED Status
This LED blinks against alarm output. (Normally OFF)
Alarm code No. is expressed by blinking frequency in orange and red.
For alarm code No., see the next page.
Orange: 10 digit, Red: 1 digit
Green
Orange
Red
Content
Status LED
color
Power ON. The driver power is switched ON.
This LED blinks (1 sec) against alarm output. (LED in blinking
indicates overload/ over-regeneration/abnormal rotation of cooling
fan.) This is not displayed on the LED display unit of the console.
Alarm output
(Ex.) In the case Overload Alarm (Alarm code No.16) was output and the driver stopped
Orange LED blinks once and red one blinks 6 times.
Orange
1 sec.
Red
0.5 sec.
0.5 sec. 1 sec.
Red
0.5 sec.
Red
0.5 sec.
Red
0.5 sec.
Red
0.5 sec.
Red
0.5 sec.
0.5 sec. 0.5 sec. 0.5 sec. 0.5 sec.
2 sec.
later
STATUS ALM CODE