Drive A1 Submenu
60
MSPD DELAY 1-4
(Multi-step Speed Delay)
These four parameters determine the
recognition time delay for a multi-step speed
commands defined by MLT-SPD TO DLY1-4
(C1) parameters.
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.
SPD ZERO BAND (A1)
(Speed Zero Band)
This parameter sets the voltage range that the
analog voltage is seen as a zero speed
command. The value is a plus and minus
voltage value typically in the millivolt range,
less than 50mV.
The zero speed band adjusts what value of
voltage the drive will see as 0v. This basically
creates a “dead band” as seen by the
horizontal part of the graph. In the graph
ZERO SPD BAND is set to 1v. The maximum
values do not change, but the slope of the
graph does change.
ANALOG SPD CMD (D1)
(Analog Speed Command)
This parameter displays the analog speed
command voltage before adjusting for SPD
CMD BIAS, SPD CMD MULT, and SPD ZERO
BAND. It can be used to determine the SPD
ZERO BAND by shorting together the +/-
analog speed inputs and the analog common
input and viewing the value at ANALOG SPD
CMD.
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
Содержание HPV 900 Series 2
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Страница 227: ...205 Z Z MARKER LOST 150 Zero Speed Level parameter 47 Zero Speed logic output 105 Zero Speed Time parameter 47...
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