3. TROUBLESHOOTING AND
TROUBLESHOOTING AND RECOVERY
b7 b6 b5 b4 b3 b2 b1 b0
TGAL (b1)=1 (the software disconnected alarm level is changed.)
Software disconnected alarm level
Standard value: 4 ⇒ The setting is increased by 4.
(3) If the alarm is a separate detector hardware disconnected alarm, check
the specification and wiring of the separate detector.
(1) Check whether the motor has overheated; it is dangerous to touch
the motor by the hand or any other part of you body. If the motor
is overheated, use it less frequently.
(2) When the motor is cooled enough, check whether an overheat alarm
⇒ If it occurs, the thermostat is defective.
⇒ If not, use the motor less frequently.
The following table contains actions to be taken for invalid servo
parameter setting alarms.
Find the relevant guideline under ”Decision criterion,” and proceed to the
corresponding ”Adjustment item.”
Alarm Decision criterion
Try resetting POA1 to 0.
Parameter: No. 8X47–1859–2047–1047 = 0
1 pulse suppression level overflow
Disable the pulse suppression function.
Function bit: No. 8X03–1808–2003–1003,B4 = 0
Feed–forward coefficient overflow
Reset the feed–forward coefficient to 0.
Parameter: No. 8X68–1961–2068 = 0
Parameter: No. 8X92–1985–2092 (advance) = 0
Position gain overflow
Reset the position gain to 0.
Parameter: No. 517–1825–1825 = 0
Number of position pulses overflow
The number of position pulses is greater than 13100
(No. 8X00–1804–2000, bit 0 = 1).
Parameter: No. 8X00–1804–2000, B0
Motor ID No.
Check whether the motor ID No. is correct.
Parameter: No. 8X20–1874–2020
Invalid axis selection parameter setting
Check whether the setting is correct.
Series 0–C: No. 269 to 274
Series 15, 16: No. 1023
Number of position pulses 0
Number of velocity pulses 0
Direction of travel = 0
Feed gear numerator 0, denominator 0
Numerator > denominator(Serial A, α and semi-closed mode)
Motor Overheat Alarm