When inputting the right/opposite operation order, the AC drive fails
to receive the failure resetting signal. You must cut off the right/opposite
operation order first, and then reset.
Malfunction or fault can be caused by reasons such as ways of
operation, setting conditions, environment or the AC drive itself. If these
causes are not eliminated or no measures are taken, the drive will end up
and unable to operate normally.
(1)Measures against electromagnet noises and induction noises
If there's noise source near the AC drive, the noise may invade the
AC drive through radiation or power line and cause faulty actions of
control circuit, and even destroy AC drive. Naturally, one solution is to
improve noise capability of AC drive, but that's not economic, let alone
the limited range of improvement. So it's best to take measures outside it
to avoid the interference.
1.Install surge killer on relay or contactor in order to restrain
switching surge noises at on and off switching.
2.Try to shorten the wiring of control circuit or program control circuit,
and separate it from main circuit wiring.
3.For circuits regulated to use shielded wire for wiring, wiring must
comply with the wiring regulations. And if the wiring is too long, an
isolation amplifier should be added.
4.The grounding terminal of AC drive should be grounded according
to regulations, and the grounding should be separate and not shared with
electric welding machine or power devices.
5.Add a noise filter on the input terminal of the AC drive to avoid noise
invasion from the power line.
(2)Environment setup measures
AC drive is a device made up of electronic parts, and its admissible
environment is described in the specifications in detail. If the regulations
EC5000
-
114
-
-
115
-
The diagnosis and the exclusion for the abnormalities
7
7.3 The Causes and Solutions for AC Drive’s
Faults
Notice!
EC5000
The setting of the
input multifunction
function is incorrect
V/F data setting error
Parameter setting
error
The input multifunction function(B01-B07) have
one of the following setting fault:
1.Set more than 2 same defaults
2.17 and 18 are set in same time
3.24 and 27 are set in same time
A10-A16 (V/F data) setting error.
AC drive rated current×0.1>(C18)motor
rated current or C18>AC motor driver rated
current×2
A37(jump Fre. 1)≥A38(jump Fre.2)-A39 (jump
Fre.extent)
A35(output Fr.up limits)<A36(output Fre.lower
limits).
display
Content
illustration
EFF
VFF
PAF
The alarm won't make the failure contact act, and the AC drive will
return to the previous operation status automatically after the failure is
solved. The list above explains the various alarms
Notice!
7
.
2Reset Alarm
■
When a failure is detected from EC5000,the failure will be shown
on the digital manipulator,and the abnormal contact will have output and
the motor will slide to stop.Check the failure causes in the list below and
take corrective measures.
■
If the mentioned inspection and corrective measures can't solve
the problem, please directly contact with our company.
■
For restart,connect with the resetting input signal or press
,or disconnect the power supply of the main loop for one time, to reset the
failure status.
■
If you want to change the parameters in the failure indication,
please press .
RESET
PRG
The diagnosis and the exclusion for the abnormalities