H.016 sync direction, H.017 input power/snubber configuration – Rockwell Automation Liqui-Flo AC GP Vector Drive Version 6.4 User Manual
Page 144

4-62
LiquiFlo AC Drive, Software Reference Version 6.4
Note that when Forward/Reverse Configuration (P.027) is set to 1, setting this
parameter to r, Fr, or rF may still cause the motor to operate in the reverse direction.
H.016 Sync Direction
When starting into a
rotating load is
required, this
parameter selects the
direction in which the
drive will search in
order to synchronize
to motor speed.
Parameter Range:
OFF = Disable synchronization
F = Search starts in motor forward direction
r = Search starts in motor reverse direction
Fr = Search starts in motor forward then reverse
direction
rF = Search starts in motor reverse then forward
direction
Default Setting:
OFF
Parameter Type:
Configurable
Refer also to parameters:
N/A
!
ATTENTION: When starting with search enabled, there will be a several
second delay, and the motor may drift in the forward and reverse direction,
before the motor begins operating in the desired direction even if reverse
has been disabled in P.027. Stay clear of rotating machinery. Failure to
observe this precaution could result in bodily injury.
H.017 Input Power/Snubber Configuration
This parameter is
used to identify the
input power supply
type/snubber
resistor/line dip
ride-through
configuration being
used.
Parameter Range:
0 = AC input, snubber resistor not used,
ride-through enabled
1 = AC input, snubber resistor used,
ride-through enabled
2 = DC input, snubber resistor not used,
ride-through disabled
3 = DC input, snubber resistor used,
ride-through disabled
4 = DC input, snubber resistor not used;
ride-through enabled
5 = DC input, snubber resistor used,
ride-through enabled
Default Setting:
0
Parameter Type:
Configurable
Refer also to parameters:
P.042 Line Dip Ride-Through Time
P.002 Decel Time 1