
VS-616PS5 Installation & Quick Start Manual
67
DEV
Speed Deviation
Speed deviation
(DEV)
The deviation of the speed reference and
speed feedback exceeded the regulation
level. (F1-10)
Check the load.
B
STO
Step Out
Stepout
Motor has pulled out of synchronization with
the applied stator field.
• Check the motor constants.
• Check the motor tempera-
ture.
• Reduce the ASL gain (C5-
01).
• Reduce the acceleration (C1-
01).
A
Zdev
Phase Z Pulse
Fault
Phase Z pulse fault
(Marker Pulse)
An uncontrolled motor state results from an
incomplete PG origin pulse adjustment or
from a failed initial magnetic pole estimation.
• Check the PG cable connec-
tion.
• Repeat auto-tuning (set T1-
03 = 1, then T1-02 = 2, and
press the digital operator
RUN key).
A
EF
External Fault
Simultaneous forward/
reverse run com-
mands
Both FWD and REV run commands are simul-
taneously input for 500ms or longer.
Check sequence circuit.
B
BB
Base Block
External base block
External base block command is input from
control circuit terminal.
Check sequence circuit.
B
EF3
External Fault 3
External fault at
terminal 3
Fault occurred in the external control circuit.
Check the condition of the input
terminal. If the LED lights when
the input is not activated, then
the inverter requires repair.
A
EF4
External Fault 4
External fault at
terminal 4
Fault occurred in the external control circuit.
Check the condition of the input
terminal. If the LED lights when
terminal is not connected, then
the inverter requires repair.
B
EF5
External Fault 5
External fault at
terminal 5
EF6
External Fault 6
External fault at
terminal 6
EF7
External Fault 7
External fault at
terminal 7
EF8
External Fault 8
External fault at
terminal 8
OPE01
kVA Selection
kVA setting error
(OPE01)
Inverter kVA setting error.
Check and set the parameter
data
(O2-04)
.
C
OPE02
Limit
Parameter setting
range error (OPE02)
Parameter data is out of range.
Check the parameter data set-
tings.
C
OPE03
Terminal
Multi-function input
setting error (OPE03)
Multi-function input settings in
H1-01
to
H1-06
are not in ascending order. Or, set values
other than “F” are overlapping
Check the function selection.
C
OPE05
Option reference
selection fault
(OPE05)
• C-option is not connected although run
command from C-option is selected
• C-option is not connected although fre-
quency reference from C-option is selected
• Check and set the contstant
data.
• Connect the C-option.
D
OPE06
Control method selec-
tion fault (OPE06)
PG control card is not connected during flux
vector control.
Connect PG control card.
D
Fault Display
Name
Description
Corrective Action
Class