107
(B). Warning and Self-Diagnosis Functions
LCD Display
(English)
Fault Contents
Fault Contact
Output
(blinking)
Alarm
DC Volt. Low
The main circuit DC voltage becomes lower than the lower under-
voltage level before the motor starts.
No operation
(blinking)
Alarm
Over Voltage
The main circuit DC voltage becomes higher than the lower under-
voltage level before the motor starts.
No operation
(blinking)
Alarm
Over Heat
The thermal protection contact is input to the external terminal.
No operation
(blinking)
Alarm
Over Torque
Over torque is detected while the output current is larger than or equal to the
setting of Cn-26. However, the Sn-12 has been set such that the inverter
continue to run and disregard the over-torque warning.
No operation
Stall prevention operates while acceleration.
Stall prevention operates while running
－
Stall prevention operates while deceleration.
No operation
(blinking)
Alarm
External Fault
Forward and reverse rotation commands are simultaneously detected
for a period of time exceeding 500ms. (The inverter is stopped
according to the stop method preset by Sn-04.)
No operation
(blinking)
Alarm
RS-485 Interrupt
MODBUS Communication fault occurs. The inverter remains
operating.
No operation
Comm. Fault
Transmission fault of digital operator
No operation
(blinking)
Alarm
B.B.
External B.B. signal (terminal
e
) is input (The inverter stops and the
motors stops without braking)
No operation
Improper inverter capacity (Sn-01) setting.
No operation
Improper setting of multi-function input signal (Sn-25, 26, 27 and
28).
No operation
Improper setting of V/F characteristic (Cn-02~08)
No operation
Alarm
Input Error
Improper setting of Cn-18, Cn-19
No operation
(blinking)
Alarm
Over Speed
Excessive speed (operation remains)
No operation
(blinking)
Alarm
PG Open
PG Open-circuit (operation remains)
No operation
Alarm
Sp.Deviat Over
Excessive speed deviation (operation remains)
No operation
Load Fail
Error during upload and download (operation remains)
No operation
EEPROM Fault
Operator EEPROM error.
No operation
Upload Error
Data incorrect during Communication from the operator to the
inverter.
No operation
Download Error
Data incorrect during Communication from the inverter to the
operator.
No operation
Alarm
Auto Tun-Error
Motor parameter autotuning error
No operation
Summary of Contents for speecon 7200ma
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