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Closed-loop User Switches C1
113
the first of the two following termination
conditions are reached.
o
The hardware “Drive Enable”
logic input is removed.
o
A timer set by parameter SER2
RS CRP TIME (A1) has
elapsed.
DRV FAST DISABLE
(Drive Fast Disable Function)
This function determines how fast the drive
responses to the removal of DRIVE ENABLE
logic input. Note: The removal of the DRIVE
ENABLE logic input will turn-off the drive output
gates.
Disable
With the removal of the DRIVE ENABLE logic
input, the drive’s output gates will turn off within
4 msec.
Enable
With the removal of the DRIVE ENABLE logic
input, the drive’s output gates will turn off within
1.5-2.0 msec.
MLT-SPD TO DLY1
(Multi-step Speed Command Delay 1)
This parameter assigns multi-step speed
command to recognition delay timer 1 as defined
by the MSPD DELAY 1 (A1) parameter.
MLT-SPD TO DLY2
(Multi-step Speed Command Delay 2)
This parameter assigns multi-step speed
command to recognition delay timer 2 as defined
by the MSPD DELAY 2 (A1) parameter.
MLT-SPD TO DLY3
(Multi-step Speed Command Delay 3)
This parameter assigns multi-step speed
command to recognition delay timer 3 as defined
by the MSPD DELAY 3 (A1) parameter.
MLT-SPD TO DLY4
(Multi-step Speed Command Delay 4)
This parameter assigns multi-step speed
command to recognition delay timer 4 as defined
by the MSPD DELAY 4 (A1) parameter.
Multi-step Speed Command Delay Function
When setting up an elevator, slow-down and
stop switches are set at fixed locations in the
shaft. Once the drive is tuned, it might require
the user to move the switches in the shaft in
order to minimize the time spent at leveling
speed.
Under "normal” operation, the drive speed
reference follows the speed command. By
configuring for “delayed” operation and setting
speed command 1 for a delay (MLT-SPD TO
DLY 1 = MSPD 1), the recognition of the speed
command change from speed command 1 to
any other speed command (in this case speed
command 2) will be delayed by the setting of
MSPD DELAY 1 (A1) parameter.
Speed Command 1
Zero speed commanded
(Stop switch activated)
Speed Command 2 commanded
(Slow down switch activated)
Speed Command 1
delay time = 0.3 sec
(MSPD DELAY 1 = 0.3 sec)
Travel time
saved
speed
command
speed
reference
(normal)
speed
reference
(delayed)
Speed Command 2