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Quattro DC User Switches C1
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 requires
that:
• 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 Y
ENCODER
FAULT
(Encoder Fault Enable)
This parameter allows the user to temporarily
disable the Encoder Fault. Adding this feature
allows the user to temporarily disable the
Encoder Fault during the initial start-up process,
when the motor model (defined by the A6 Motor
Parameters) is not clearly defined.
When the Encoder Fault is disabled (ENCODER
FAULT (C1) = disabled), the drive will display
the warning message “EncoderFault OFF”,
every time the RUN command is removed.
IMPORTANT: After the motor parameters in A6
have been established, the Encoder Fault
should be enabled (ENCODER FAULT (C1) =
enabled).
Note: the default for the ENCODER FAULT (C1)
parameter is enabled.
ENABLE
− disable
− enable
Y Y
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
− enable
− disable
Y Y
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