Weq CFW700 Series, User Manual

Page: 60 / 70

CFW700 | 55
Troubleshooting and Maintenance
E
ng
lis
h
Problem
Point to be
Verified
Corrective Action
Off display Keypad
connections 1. Check the inverter keypad connection.
Power supply
voltage 1. Rated values shall be within the limits specified below:
200...240 V power supply: (Frame sizes A to D) Minimum:
170 V; Maximum: 264 V.
220 / 230 V power supply: (Frame size E) Minimum: 187 V;
Maximum: 253 V.
380...480 V power supply: Minimum: 323 V; Maximum:
528 V.
500...600 V power supply: Minimum: 425 V; Maximum:
660 V.
Mains supply fuses
open 1. Replace fuses.
Motor does not
operate in the field
weakning region
(Vector Control) Settings 1. Decrease P0180.
Low motor speed and
P0009 = P0169 or
P0170 (motor operating
with torque limitation),
for P0202 = 5 - vector
with encoder Encoder signals
are inverted or
power connection
is inverted
1. Check the signals A - A, B - B , refer to Figura 3.6 on page
21 . If signals are properly installed, exchange two of the
output phases. For instance U and V.
Encoder cable is
broken 1. Replace the cable.
6.3 INFORMATION FOR CONTACTING TECHNICAL SUPPORT
For technical support and servicing, it is important to have the following information in hand:
„
Inverter model.
„
Serial number and manufacturing date available on the identification label of the product (refer
to
Section 2.5 IDENTIFICATION LABELS on page 8 and the Figure A.2 on page 208 ).
„
Installed software version (check parameter P0023).
„
Application data and inverter settings.