Filter
Top Products
OC.Drive
OC.Decel
OC.Accel
Over.C
Over.L
Over.V
EEPROM
Under.V
CPU
EXTERNAL
USP
GND.Flt
OV.SRC
OH FIN
DRIV
TH
EMERGENCY
COMM
Protective Functions
10
Name
Over current
Overload
protection *1
Over voltage protection
EEPROM error *2,3
Under-voltage error
CPU error
External trip
USP *4
Ground fault *5
Input over-voltage
Inverter thermal trip
Thermistor
Communications error
Cause(s)
Display on digital
operator
The inverter output was short-circuited, or the motor shaft is locked or has a heavy
load. These conditions cause excessive current for the inverter, so the inverter
output is turned OFF.
When a motor overload is detected by the electronic thermal function, the inverter trips and turns OFF
its output.
When the DC bus voltage exceeds a threshold, due to regenerative energy from the motor.
When the built-in EEPROM memory has problems due to noise or excessive temperature, the inverter
trips and turns OFF its output to the motor.
A decrease of internal DC bus voltage below a threshold results in a control circuit fault. This condition
can also generate excessive motor heat or cause low torque. The inverter trips and turns OFF its output.
A malfunction in the built-in CPU has occurred, so the inverter trips and turns OFF its output to the
motor.
A signal on an intelligent input terminal configured as EXT has occurred. The inverter trips and turns
OFF the output to the motor.
When the Unattended Start Protection (USP) is enabled, an error occurred when power is applied while a
Run signal is present. The inverter trips and does not go into Run Mode until the error is cleared.
The inverter is protected by the detection of ground faults between the inverter output and the motor
during powerup tests. This feature protects the inverter, and does not protect humans.
When the input voltage is higher than the specified value, it is detected 100 seconds after powerup
and the inverter trips and turns OFF its output.
When the inverter internal temperature is above the threshold, the thermal sensor in the inverter module
detects the excessive temperature of the power devices and trips, turning the inverter output OFF.
When a thermistor is connected to terminals [PTC] and [CM1] and the inverter has sensed the
temperature is too high, the inverter trips and turns OFF the output.
The inverter's watchdog timer for the communications network has timed out.
While at
constant speed
During
deceleration
During
acceleration
Others
Display on remote
operator/copy unit
Error Codes
Error code
Output frequency
at trip point
Motor current
at trip point
Voltage between
P(+) and N(-) at trip point
Cumulative inverter
RUN time at trip point
Cumulative power-on
time at trip point
1 2 1 2 1 2 1 2 1 2
1 2
How to access the details about the present fault
Note 1: Reset operations acceptable 10 seconds after the trip. Note 2: If an EEPROM error (E08) occurs, be sure to confirm the parameter data values are still correct.
Note 3:
EEPROM error may occer at power-on after shutting down the power while copying data with remote operator or initializing data. Shut down the power after completing copy or initialization.
Note 4: USP error occures at reseting trip after under-voltage error (E09) if USP is enabled. Reset once more to recover.
Note 5: Ground fault error (E14) cannot be released with resetting. Shut the power and check wiring.
P Group: Expansion Card Functions
H Group: Motor constants functions
Note: The "P" Group parameters do not appear in the parameter list shown on the keypad display unless the expansion card is installed on the inverter.
Function List
Option Setting
Motor constants and
gain
P044
P045
P046
P047
P048
P049
H003
H203
H004
H204
H006
H206
Network comm watchdog timer
Inverter action on network comm error
Polled I/O output instance number
Polled I/O input instance number
Inverter action on network idle mode
Network motor poles setting for RPM
0.00 to 99.99
00(Trip (Error Code E70)) 01(Decelerate to stop and trip (Error Code E70))
02(Hold last speed), 03(Free run stop), 04(Decelerate and stop)
20/21/100
70/71/101
00(Trip (Error Code E70))
01(Decelerate to stop and trip (Error Code E70))
02(Hold last speed), 03(Free run stop), 04(Decelerate and stop)
00 to 38
1.00
01
21
71
01
0
1.00
01
21
71
01
0
1.00
01
21
71
01
0
sec.
-
-
-
-
-
Run mode
edit
Run mode
edit
Function Code
Function Code
Name
Name
Range
Range
Default
Default
-EF(CE)
-EF(CE)
-U(UL)
-U(UL)
-R(JP)
-R(JP)
Unit
Unit
Lo
Lo
Hi
Hi
X
X
X
X
X
X
X
X
X
X
X
X
: Allowed
[
X
: Not allowed
]
: Allowed
[
X
: Not allowed
]
Driver error
An internal inverter error has occurred at the safety protection circuit between the CPU and main driver
unit. Excessive electrical noise may be the cause. The inverter has turned OFF the IGBT module output.
Safety Stop Safety stop signal given.
Motor capacity, 1st motor
Motor capacity, 2nd motor
Motor poles setting, 1st motor
Motor poles setting, 2nd motor
Motor stabilization constant, 1st motor
Motor stabilization constant, 2nd motor
0.2/0.4/0.55/0.75/1.1/1.5/2.2/3.0/4.0/5.5
2/4/6/8
0. to 255.
Factory
set
4
4
100
100
Factory
set
4
4
100
100
Factory
set
4
4
100
100
kW
kW
poles
poles
%
%
X
X
X
X
X
X
X
X