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7-44 VS1MD AC Drive User Manual
H19 Phase Loss Protection
Range: 0 - 3n
Default: 0
Access Tunable
Setting H19 to a value other than 0 enables Phase Loss Protection.
Output Phase Loss: Inverter output is shut off in the event of more than one
phase loss among U, V and W.
Input Phase Loss: Inverter output is blocked at the event of more than one
phase loss among R, S and T. If there is no input phase loss, output is shut
off when it is time to replace the DC link capacitor.
Note: Set P32 – Motor Rated Current correctly. If the actual motor rated
current and the value of P32 are different, output phase loss protection
function may not activate correctly.
0 = Not Used
1 = Output phase loss protection
2 = Input phase loss protection
3 = Input/output phase loss protection
H20 Power On Start
Range: 0 - 1
Default: 0
Access Tunable
See also: P38
Setting H20 = 1 enables power on start. This parameter is activated when
P38 – Drive Mode is set to 1 or 2 (Run/Stop via Control Terminal). Motor
will accelerate after AC power is applied and a Forward Run (FX) or
Reverse Run (RX) terminal is ON.
This parameter is inactive if P38 – Drive Mode is set to Keypad or RS485.
ATTENTION:Particular attention must be directed to this function due to
potential hazard as motor starts to run suddenly upon applying AC input
power.
Run
command
Frequency
Input voltage
When H20 is 0 When H20 is 1