Chapter 7 - Troubleshooting & Maintenance
7-2
Keypad Display
Protective
Function
Description
LOP
LOR
LOV
LOI
LOX
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: continuous operation, decelerate to 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 sub-board (V2, ENC) analog frequency reference is lost.
To reset fault, Press RESET key, close RST-CM terminals or cycle the input power.
If a problem persists, please contact the factory or your local distributor.
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