Sanyo SUPER BL PY - Page 173

8. MAINTENANCE
8 - 17
Alarm Status
Segment LED
Display
Alarm Code
ALM8,4,2,1
Abbreviation Alarm Name
Alarm
Clear
Contents
0101 RGOL Regenerative
error
Possible Overload detected in regenerative
resistor
Alarm code 0,1 indicates: when Func2/ bit7,6 =”0,0”, “0”= output open and “1”= output short.
Operating state when alarm occurred
POSSIBLE CAUSES
OPERATING STATE
1 2 3 4 5 6 7 8
When control power supply is turned on
○
When main circuit power supply is turned on
○ ○
During operation
○ ○ ○ ○ ○ ○ △
Corrective Measures
CAUSE CORRECTIVE MEASURES
1 • Allowable regeneration power of built-in
regenerative resistor is exceeded.
• Load inertia is too high, or conducted time
(for one cycle) is too short
Review load inertia and operational pattern
• Use an external regenerative resistor module.
• Lower load inertia within specified range
• Increase deceleration time
• Increase conducted time
2 External regenerative resistor is specified, but
bit4 of Func2 is not set properly.
Set bit4 of Func0 to “1” by allowable absorbing
power of external regenerative resistor.
3 Built-in regenerative resistor module is
specified, but faulty wiring.
Check and correct wiring.
4 External regenerative resistor module is
specified, but faulty wiring.
Check and correct wiring.
5 Faulty regenerative resistor. • Replace servo amplifier if using built-in
regenerative resistor module.
• Replace resistor if using external regenerative
resistor module.
6 Resistance value of external regenerative
resistor module is too high
Change to resistor that meets specification.
7 Input power voltage is over 280V AC Review input power voltage
8 Faulty amplifier control circuit Replace servo amplifier.