Description of Warning Codes
‑26‑
Cause
Confirming Method
Solution
3. H02.25 (Regenerative
resistor type) is set
improperly when an external
regenerative resistor is used.
● Check the setpoint of
H02.25.
● Measure the resistance of
the external regenerative
resistor connected
between P⊕ and C. Check
whether the resistance
measured is too large by
comparing it with the value
listed in Table
"Specifications of the
regenerative resistor".
● Check whether the value of
H02.27 is larger than the
resistance of the external
regenerative resistor
connected between
terminals P⊕ and C.
Set H02.25 according to
section Wiring and Setting of
Regenerative Resistor in
SV670P Series Servo Drive
Hardware Guide.
H02.25 = 1 (external,
naturally ventilated)
H02.25 = 2 (external, forced‑
air cooling)
4. The resistance of the
external regenerative
resistor is too large.
Select a proper regenerative
resistor according to section
"Specifications of the
Regenerative Resistor" in
SV660N Series Servo Drive
Commissioning Guide.
5. The setpoint of H02.27
(Resistance of external
regenerative resistor) is
higher than the resistance of
the external regenerative
resistor used.
Set H02.27 according to the
resistance of the external
regenerative resistor used.
6. The input voltage of the
main circuit is beyond the
specified range.
Check whether the input
voltage of the main circuit
cable on the drive side is
within the following range:
● 220 V servo drive:Value
range: 220 V to 240
VAllowable deviation: –
10% to +10% (198 V to 264
V)
● 380 V servo drive: Value
range: 380 V to 440
VAllowable deviation: –
10% to +10% (342 V to 484
V)
Replace or adjust the power
supply according to the
specified range.
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