The LT13 Current Ramp Down Timer begins after the Direction input has been dropped,
the speed command has reached zero speed, the LT10 Brake Drop Delay timer has
expired, and the LT12 Current Hold Timer has expired.
Avoid premature drop of STO inputs.
The total time between the drop of the direction signals and the turn off of
motor current is the time to decelerate to zero speed + LT10 + LT12 +
LT13. The time delay for dropping the STO and the opening of the motor
contact should be greater than this sum. If the STO inputs are dropped
prematurely, then current will be cut off immediately and this may be felt
8.10.1 Control Sequence (All Services)
Starting:
STO Inputs.
Up or Down direction.
May be given with the STO inputs, before or after.
If both the Up and Down directions are given, a Direction Selection Failure will occur.
If LI15 = Down Input Only, the Up direction is automatically selected internally.
Drive performs a current check.
The check requires about 300ms.
If the check does not pass, Error Low Motor Current will occur.
After the check passes, the drive will begin to modulate and output current.
LT01 Brake Release Delay timer begins.
After LT01 Brake Release Delay timer expires.
The Drive On output will be active.
The Brake Control output will be active.
LT03 Speed Start Delay timer begins.
Speed Selection Error event will occur if a speed input is not received within
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