YASKAWA VS-616PS5 Series Programming Manual page 94

Section L: Protection Parameters
L8 Hardware Protection
Input phase loss detection is disabled in the following cases:
• A Stop command is input
• Magnetic Contact (MC) shuts OFF
• CPU A/D converter fault (CPF5)
• During deceleration
• Output current ≤ 30% of Inverter rated current
L8-07 Output Phase Loss Protection
This parameter detects the inverter output open-phase.
Setting
0
1
An open phase condition may be erroneously detected at the output if inadequate
motor capacity is applied to the inverter, or the load torque is low.
L8-10 Ground Fault Protection
The ground fault detection circuit monitors the output current and activates when
excessive ground current is detected.
A ground fault will occur when the inverter output grounding current has exceeded
50% of the inverter rated current.
94
Inverter output open-phase detection is disabled (factory default).
Inverter output open-phase detection is enabled.
Setting
0 Ground fault detection is disabled
Ground fault detection is enabled.(factory
1
Description
Description
default).
VS-616PS5 Programming Manual
A
A