Inovance SV670P Series Troubleshooting Guide

Description of Warning Codes
‑25‑
Cause
Confirming Method
Solution
Overvoltage occurred on the
control circuit of the drive.
1. Measure whether the
input voltage in the
control circuit cable is
within the following
range: 220 V servo drive:
Value range: 220 V to 240
V Allowable deviation: –
10% to +10% (198 V to
264 V) 380 V servo drive:
Value range: 380 V to 440
V Allowable deviation: –
10% to +10% (342 V to
484 V)
2. Check whether control
circuit cables are
connected properly and
whether the voltage of
control circuit cables
(L1C, L2C) is within the
specified range.
Re‑connect or replace the
cables.
● E920.0: Regenerative resistor overload
Cause:
The accumulative heat of the regenerative resistor exceeds the set value.
Cause
Confirming Method
Solution
1. The external regenerative
resistor is connected
improperly or disconnected.
Remove the external
regenerative resistor and
measure whether its
resistance is "∞" (infinite).
Measure whether the
resistance between
terminals P⊕ and C is "∞"
(infinite).
Replace with a new external
regenerative resistor. After
confirming the resistance
measured is the same as the
nominal value, connect it
between terminals P⊕ and
C.
Connect the external
regenerative resistor
between terminals P⊕ and
C with a proper cable.
2. The jumper between
terminals P⊕ and D is
shorted or disconnected
when the built‑in
regenerative resistor is used.
Measure whether the
resistance between
terminals P⊕ and D is "∞"
(infinite).
Ensure terminals P⊕ and D
are jumpered.

Inovance SV670P Series Specifications

General

Brand	Inovance
Model	SV670P Series
Category	Servo Drives
Language	English