HP 30 HP30 - Manual (Page 196)

Chapter 8 - Troubleshooting & Maintenance
8-2
Keypad Display
LCD 7-Segment
Protective
Function
Description
Option (**) OPT Option Fault
Fault at the internal option of the inverter.
HW-Diag HW
Inverter H/W
Fault
A fault signal is output when an error occurs to the control circuitry of the
inverter. There are the Wdog error, the EEP error, and the ADC Offset for this
fault
COM Error
CPU Error
Err
Communication
Error
This fault is displayed when the inverter cannot communicate with the keypad.
LOP
LOR
LOV
LOI
LOX
LP
LR
LV
LI
LX
Operating Method
when the
Frequency
Reference is Lost
According to the I/O-48 [Operating Method when the Frequency Reference is
Lost] setting, there are three modes: continue operation, decelerate and stop,
and free run,
LOP: Displayed when option frequency reference is lost (DPRAM time out)
LOR:
Displayed when option frequency reference is lost (Communication
network fault)
LOV: Displayed when ‘V1’ analog frequency reference is lost.
LOI: Displayed when ‘I‘ analog frequency reference is lost.
LOX: Displayed when sun-board (V2, ENC) analog frequency reference is lost.
Inv. OLT IOLT Inverter Overload
The inverter turns off its output when the output current of the inverter flows
more than the rated level (150% for 1 minute, 200% for 0.5 seconds).
NTC open NTC
Thermal Sensor
Opened
Inverter uses NC thermal sensor for detecting heat sink temperature. If this
message is displayed, the thermal sensor wire may be cut. (Inverter keeps
operating)
MC Fail MCF
Magnetic
contactor fault
This fault is displayed when input power is not applied or M/C inside the inverter
becomes faulty.
To reset fault perform one of the following:
} Press RESET key on the keypad.
} Close RST-CM terminals.
} Cycle power to the inverter.
If a problem persists, please contact the factory or your local distributor.