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Closed-loop Drive A1
87
SPD DEV TIME
(Speed Deviation Time)
This parameter defines the time the speed
feedback needs to be in the range around the
speed reference defined by SPD DEV LO
LEVEL (A1) before the Speed Deviation Low
logic output is true.
SPD DEV HI LEVEL
(Speed Deviation High Level)
This parameter defines a threshold around the
speed reference. If the speed feedback is
outside of this threshold the drive will declare a
Speed Deviation Alarm and the Speed Deviation
Low logic output will become true. The Speed
Deviation High function annunciates a Speed
Deviation Alarm and has the ability to set a
configurable logic output. The alarm will be
annunciated and the logic output will be true,
when the speed feedback is not properly
tracking the speed reference and is outside a
defined range around the speed reference. The
defined range is determined by the Speed
Deviation High Level parameter (SPD DEV HI
LEVEL(A1)).
SPD COMMAND BIAS
(Speed Command Bias)
This parameter subtracts an effective voltage to
the actual analog speed command voltage
signal.
uses
software
drive
signal
MULT
COMMAND
SPD
BIAS
COMMAND
SPD
voltage
input
channel#1
analog
=
×
−
SPD COMMAND MULT
(Speed Command Multiplier)
This parameter scales the analog speed
command.
uses
software
drive
signal
MULT
COMMAND
SPD
BIAS
COMMAND
SPD
voltage
input
channel#1
analog
=
×
−
PRE TORQUE BIAS
(Pre-Torque Bias)
This parameter subtracts an effective voltage to
the actual analog pre torque command (channel
2) voltage signal.
uses
software
drive
signal
MULT
TORQUE
PRE
BIAS
TORQUE
PRE
voltage
input
channel#2
analog
=
×
−
PRE TORQUE MULT
(Pre-Torque Multiplier)
This parameter scales the analog pretorque
command (channel 2).
uses
software
drive
signal
MULT
TORQUE
PRE
BIAS
TORQUE
PRE
voltage
input
channel#2
analog
=
×
−
ZERO SPEED LEVEL
(Zero Speed Level)
This parameter sets the threshold for zero speed
detection. This is only used to generate the zero
speed logic output.
Note: if DIR CONFIRM (C1) is enabled, this
parameter also sets the threshold for the
termination of the test to confirm the polarity of
the analog speed command.
ZERO SPEED TIME
(Zero Speed Time)
This parameter sets the time at which the drive
is at the ZERO SPEED LEVEL (A1) before zero
speed logic output is true.
UP/DWN THRESHOLD
(Directional Threshold)
This parameter sets the threshold for the
direction sense logic outputs. If speed feedback
does not reach this level, the drive will not detect
a directional change. This is only used to
generate the direction sense logic outputs (car
going up and car going down).
MTR TORQUE LIMIT
(Motoring Current Limit)
This parameter sets the maximum torque
allowed at when in the motoring mode. This
Speed Deviation High
(Speed Deviation Alarm)
Speed Deviation High
(Speed Deviation Alarm)
Speed Reference
Speed Feedback