Troubleshooting For Protection Functions Related Error; Checking Trip Information - Hitachi WJ Series User Manual

Chapter 15

15.2 Troubleshooting for Protection Functions Related Error

15.2.1

Checking Trip Information

 How to know the detailed information when a trip occurred in the inverter?
Q
 When the inverter detects an abnormality, the inverter shuts off the output and displays an error
A
code. Alarm LED [AL] on the keypad also lights. In addition, by rotating the JOG dial as shown in
the figure below, detailed information such as the output frequency, current, and DC bus
voltage at trip can be referred to.
 Detailed information at trip can be monitored by "Trip monitor 1 to 6" ([d081] to [d086]).
 To release the trip (reset), press (a) [STOP/RESET] key, (b) ON-->OFF the "reset [RS] (18)"
assigned to the input terminal, or (c) turn on the inverter again. (Some error factors cannot be
reset by (a) and (b). For details, refer to the countermeasures for each error.)
Code
[d080] Trip count monitor
[d081]
to Trip monitor 1 to 6
[d086]

Esc
.
JOG
.
JOG
JOG
.
JOG
JOG
JOG
Item
Displays the number of times the inverter has tripped.
Displays trip factor, output frequency (Hz), output
current (A), DC bus voltage (VDC), accumulated RUN
time (hr), and accumulated power-on time (hr) at the
latest 6 trips. [d081] is the latest trip information.
Trip monitor
SET
Error code
JOG
Output frequency at Trip (Hz)
Frequency LED (Green) ON
JOG
. Output current at Trip (A)
Current monitor LED [A] ON
JOG
DC bus voltage at Trip (VDC)
JOG
.
Accumulated RUN time at Trip (hr)
JOG
Accumulated power-on time
.
at Trip (hr)
JOG
Tips/FAQ/Troubleshooting
Description
(NOTE)
The decimal point of the error display
indicates the inverter status when tripped.
However, it may differ from the apparent
operation of the motor.
(In the frequency command by analog signal,
etc., even in apparently constant speed
operation, the acceleration/deceleration may
be repeated finely due to the fluctuation of
analog command, etc.)
15-2-1
0 to
65535 (times)
.
Inverter status at
Error code trip
: At power-on or initial
.
processing by [RS]
terminal
.
: Stopping
: Deceleration
.
.
: Constant
speed
.
: Acceleration
: RUN command is given
.
at 0Hz
.
: Starting
.
: DC braking
.
: Overload restriction
Data
-