Description of Fault Codes
‑51‑
Cause
Confirming Method
Solution
4. The resistance of the
external regenerative
resistor is too large,
resulting in insufficient
energy absorption during
braking.
Measure the resistance of
the external regenerative
resistor connected between
terminals P⊕ and C, and
compare the measured
value with the
recommended value.
1. Replace with an external
regenerative resistor of
recommended resistance,
and connect it between
terminals P⊕ and C.
2. Set H02.26 (Power of
external regenerative
resistor) and H02.27
(Resistance of external
regenerative resistor) to
values consistent with the
specifications of the
external regenerative
resistor used.
5. The motor is in abrupt
acceleration/deceleration
status and the maximum
braking energy exceeds the
energy absorption value.
Confirm the acceleration/
deceleration time during
operation and measure
whether the DC bus voltage
between terminals P⊕ and
N⊖ exceeds the overvoltage
threshold during
deceleration.
After confirming the input
voltage of the main circuit is
within the specified range,
increase the acceleration/
deceleration time if the
operating conditions allow.
6. The bus voltage sampling
value deviates greatly from
the measured value.
Check whether H0b.26 (Bus
voltage) is within the
following range:
220 V servo drive: H0b.26 ＞
420 V
380 V servo drive: H0b.26 ＞
760 V
Measure whether the DC bus
voltage detected between
terminals P⊕ and N⊖ is
lower than the value of
H0b.26.
Contact Inovance for
technical support.
7. The servo drive is faulty.
The fault persists after the
main circuit is powered off
and on repeatedly.
Replace the servo drive.
● E410.0: Main circuit undervoltage
Cause:
The DC bus voltage between terminals P⊕ and N⊖ is lower than the undervoltage
threshold.
220 V servo drive: Normal value: 310 V Undervoltage threshold: 200 V (180 V for
S5R5 models)
To Next Page
Loading...
