Magnetek Elevator Quattro DC - Page 72

Quattro DC User Switches C1 Submenu
70
Parameter Description Default Choices
Hidden
Item
Run
lock
out
S-CURVE
ABORT
(S-Curve Abort)
This parameter, S-CURVE ABORT (C1),
addresses how the S-Curve Speed Reference
Generator handles a reduction in the speed
command before the S-Curve Generator has
reached its target speed.
Disabled: With a normal S-curve function, a
change in the speed command is never allowed
to violate the defined acceleration or jerk rates.
If a reduction in the speed command is issued
before the S-Curve generator has reached its
target speed, then the jerk rate dictates what
speed is reached before the speed may be
reduced.
Enabled: The optional S-Curve abort has been
selected. In this case when the speed command
is reduced, the speed reference immediately
starts to reduce violating the jerk limit (thus no
jerk out phase), which could be felt in the
elevator.
For optional S-Curve abort to be active:
 The speed command source must be
selected as Multi-step (SPD COMMAND
SRC=multi-step).
 The S-curve Abort function must be
ENABLED (S-CURVE ABORT = enabled).
DISABLED
 disabled
 enabled
Y N
PRIORITY
MESSAGE
(Priority Message Enabling)
With Priority Message disabled the user will not
see priority messages meaning faults and
alarms will not be displayed on the operator, but
the faults will be placed into the fault history and
active fault lists with the Fault LED on. Leave
Priority Message enabled when drive is not
being worked on.
ENABLE
 disable
 enable
Y N
STOPPING
MODE
(Multi-step Stopping Mode Selection)
When the speed command source is set to
multi-step (SPD COMMAND SRC (C1)=multi-
step), the parameter, STOPPING MODE (C1),
determines the stopping mode of the Drive. The
two selectable methods for the Stopping Mode
parameter are “Immediate” and “Ramp to stop”.
Note: If the SPD COMMAND SRC (C1)
parameter is set to any other definition other
than “multi-step”, the drive will behave to the
“immediate” stopping mode (independent of the
setting of the STOPPING MODE (C1)
parameter).
The “Immediate” stopping mode requires the
drive to be at zero speed prior to removing the
“Run” command. The “Immediate“ selection is
how the drive has traditionally behaved prior to
the addition of this parameter.
The “Ramp to stop” stopping mode is intended
for use when removing the “Run” command prior
to the drive reaching zero speed (as defined by
the AB ZERO SPD LEV (A1) parameter). When
the “Run” command is removed and the speed
reference is above zero speed, the speed
reference will ramp to zero speed following the
selected s-curve.
IMMEDIATE
 immediate
 ramp to stop
Y N