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Closed-loop Drive A1
90
AB OFF DELAY
(Auto Brake Off Delay)
This parameter determines the time after zero
speed is reached (level determined by the AB
ZERO SPD LEV (A1) parameter) that the Auto
Brake logic output goes false. The units are
seconds and the parameter has a maximum
value of 9.99 seconds and a default value of
0.00 seconds.
CONTACTOR DO DLY
(Contactor Drop-out Delay)
When the drive controls the motor contactor via
CLOSE CONTACT logic output, this parameter,
CONTACTOR DO DLY (A1), allows the user to
delay the drive’s dropout of the motor contactor.
The CONTACTOR DO DLY Timer Delay starts
when the speed regulator release signal goes
false and can be set from 0.00 to 5.00 seconds.
TRQ LIM MSG DLY
(Torque Limit Message Delay)
This parameter determines the amount of time
the drive is in torque limit before the “HIT
TORQUE LIMIT” alarm message is displayed.
The units are seconds and the parameter has a
maximum value of 10.00 seconds and a default
value of 0.50 seconds.
SER2 INSP SPD
(Serial Mode 2 Inspection Speed)
Used only with custom serial protocol (mode 2)
When in Serial Mode 2, this parameter defines
the inspection speed to be used. To run in
inspection speed via serial mode 2 requires that
the run command for inspection speed come
from two sources, a command sent in a serial
message and via hardware as a logic input
defined as “SER2 INSP ENA”.
SER2 RS CRP SPD
(Serial Mode 2 Rescue Creep Speed)
Used only with custom serial protocol (mode 2)
When in Serial Mode 2 and SER2 FLT MODE
(C1)=rescue, this parameter defines the creep
speed that will be used in the “rescue mode”.
SER2 RS CRP TIME
(Serial Mode 2 Rescue Creep Time)
Used only with custom serial protocol (mode 2)
When in Serial Mode 2 and SER2 FLT MODE
(C1)=rescue, this parameter defines the
maximum time the drive will continue to run at
rescue creep speed (defined by SER2 RS CRP
SPD (A1) parameter) when reacting to a serial
fault. The time is defined as the time running at
creep speed. It does not include the time it takes
to decelerate to creep speed.
SER2 FLT TOL
(Serial Mode 2 Fault Tolerance)
Used only with custom serial protocol (mode 2)
When in Serial Mode 2, this parameter defines
the maximum time that may elapse between
valid run time messages while in serial run mode
before a serial fault is declared.
ROLLBACK GAIN
(Anti-rollback Gain)
This parameter increases the sensitivity (or gain)
of the speed regulator during the start in the
interval between “Speed Regulator Release”
and “Reference Release”. The parameter acts
as a multiplier to the existing speed regulator
gain.
Note: this function will only for use with multi-
step speed commands (SPD COMMAND SRC
(C1) = MULTI-STEP)
During the start, this function can help the drive
re-establish the torque to help to control rollback
(or roll forward),
Set-up
In order to the use the Anti-Rollback function,
the following parameters must be set: SPD REF
RELEASE(C1)=BRAKE PICKED and BRAKE
PICK CFRM(C1)=INTERNAL TIME. With the
these settings for SPD REF RELEASE(C1) and
BRAKE PICK CFRM(C1), the BRAKE PICK
TIME (A1) parameter determines the amount of
time the drive will command zero speed after the
Run command is given and the amount of time
the drive will command zero speed after the Run
command is removed.
At the start, the ROLLBACK GAIN parameter
will increase the speed regulator gain during the
time determined by BRAKE PICK TIME
parameter when the drive is commanding zero
speed (i.e. the time between the speed regulator
is released and the speed reference is
released). During this BRAKE PICK TIME, the
mechanical brake should be picked (either by
the car controller or drive).
Adjustment
Start at ROLLBACK GAIN=1 and increase in
increments of 1 to help control rollback.
IMPORTANT
: too high a setting for this
parameter can lead to drive instability.
Содержание HPV 600
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