88 FP5/GP5 User’s Manual
4.2 ALARM & FAULT DISPLAYS
This section describes the alarm and fault displays, explanations for fault condi-
tions, and corrective actions to be taken if the FP5/GP5 malfunctions.
Alarm Display
Unlike faults, alarms do not activate fault contact outputs. After the cause of
the alarm is corrected, the inverter returns to its former operation status
automatically.
Alarm Display and Explanations
LCD Operator
Alarm Display
Contents Description
U
v
Undervoltage
(blinking)
Undervoltage detection Undervoltage has been detected.
o
V
Overvoltage
(blinking)
OV during stop
Main circuit DC voltage exceeds the overvoltage detec-
tion level while the inverter output is OFF.
o
H1
Overheat 1
(blinking)
Heatsink overheating
When heatsink temperature
≥
OH1 detection level, con-
tinuous operation at 0H1 detection is selected.
o
L3
Overload 3
(blinking)
Overtorque detection
When inverter output current > n078 (overtorque detec-
tion level), continuous operation at overtorque detection
is selected.
bb
Base Block
(blinking)
External baseblock
External baseblock command is input from control circuit
terminal.
EF
Ext Fault
(blinking)
Simultaneous forward/
reverse run commands
Both forward and reverse run commands are simulta-
neously input for over 500ms.
CE
Modbus Com Err
(blinking)
MODBUS transmission
waiting
When parameter n002 (operation method selection) is
set to “4” or above, the inverter has not received the nor-
mal data from serial communication after power ON.
o
H3
Overheat 3
(blinking)
Inverter overheat pre-alarm Inverter overheat pre-alarm signal is input from control
circuit terminal.
CALL
Waiting Message
(blinking)
MODBUS transmission error Continuous operation is selected at MODBUS transmis-
sion error.
o
PE1
KVA Setting Err
Inverter kVA setting fault Inverter kVA setting error.
o
PE3
MF Input Error
Multi-function contact input
setting error
One of the following setting errors occurred in the multi-
function contact input selection (n036 to n040).
· Two or more of the same values are set.
· Both 15 and 16 are set at the same time.
· Both 22 and 25 are set at the same time.
· Either of n036 to n039 are set to “25” or “26”.
o
PE5
V/f Error
V/f data setting error Setting error of n011 to n017 (V/f data)
o
PE6
Parameter Error
Parameter setting error
One of the following setting errors occurred.
· n062 (jump frequency 1) > n063 (jump frequency 2)
· n031 (frequency upper limit) < n032 (frequency lower
limit)
· n033 (motor rated current) < 10% of inverter rated cur-
rent, or n033 > 200% of inverter rated current setting
Chapter 4 - Diagnostics
Alarm & Fault Displays
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