LEESON Micro Series Compact Inverters - Manual (Page 63)

25 START (START MODE)
Automatic start of equipment may result in damage to equipment and/or injury to personnel!
Automatic start should only be used on equipment that is inaccessible to personnel.
This parameter selects the starting method for the drive, and can be set for one of the following:
NORMAL The drive will start when the appropriate contact closure is made on the terminal strip
(in REMOTE mode), or by pressing the keypad START key (in LOCAL mode).
To start the drive in NORMAL mode, a start command must be issued at least two
seconds AFTER input power is applied .
POWER UP The drive will automatically start upon application of input power . The drive
MUST be wired for a two-wire start/stop circuit (refer to Section 14 .0 - CONTROL
WIRING). The start command MUST be present when power is applied for this
function to operate .
AUTO RE- The drive will automatically restart after a protective fault or upon application of input
power . As with the POWER-UP option, a start command must be present for this
function to operate .
RE-BRAKE After a fault, the drive will apply DC braking equal to the DC BRAKE setting for 15
seconds and then restart . This is done to ensure the motor is stopped during the restart
attempt, as the drive will not start into a spinning motor .
NOTE 1: POWER UP, AUTO RE-, and RE-BRAKE settings are only active when the drive is in
REMOTE mode (see Parameter 30 - CONTROL).
NOTE 2: After a fault, the drive will attempt to restart five times, and if unsuccessful, will shut down on a
FAULT LOCKOUT . Every 15 minutes that passes will decrement the restart counter by one . Therefore,
75 minutes after a successful restart, the restart counter is fully reset, and the drive can once again attempt
five restarts .
NOTE 3: The drive WILL NOT restart after the following faults: CONTROL and PWR SAG . Also, if
an OUTPUT fault occurs below 1.5 Hz, only one restart will be attempted, after a four minute delay. If
unsuccessful, it will then trip into FAULT LOCKOUT, which will require a manual reset. This is done to
protect the drive in case of a shorted motor .
26 STOP (STOP MODE)
This parameter selects whether the motor will COAST to a stop, or RAMP to a stop, when the drive is given
a stop command .
COAST When a stop command is given, the drive shuts off the output to the motor, allowing
it to coast to a stop. The time required for the motor to stop is governed by the inertia
of the load .
RAMP When a stop command is given, the drive will decelerate the motor to a stop over a
period of time according to Parameter 9 - DECEL. Once the output frequency
reaches 0.0 Hz, there will be a 200 ms delay before the drive can be started again.
RAMP 2 Same as RAMP, but without the 200 ms start delay . This allows faster start/stop cycles
for applications that require it.
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WARNING