Filter
Top Products
Quattro DC Drive Parameters A1
Parameter Description Units Default Range
Hidden
Item
Run
lock
out
TACH FILTER
BW
(Tach Filter Bandwidth)
Breakpoint of
tachometer / encoder feedback signal.
rad/sec 100 1 – 100
Y N
TACH RATE
GAIN
(Tach Rate Gain)
Used to help reduce the
effects of rope resonance. It should be
adjusted only after the INERTIA and
RESPONSE have been set correctly.
none 0.0 0.0 – 30.0
Y N
SPD PHASE
MARGIN
(Speed Phase Margin)
This parameter
sets the phase margin of the speed
regulator assuming a pure inertial load.
This parameter is only in affect if SPEED
REG TYPE (C1) is set to PI REG. See
INNER LOOP XOVER (A1) if using ELEV
SPD REG.
degs 80 45 – 90
Y N
RAMPED STOP
TIME
(Ramped Stop Time)
This parameter is
used only by the torque ramp down
function during a stop and sets the time to
decrease motor torque from rated torque
to zero. After the elevator comes to a halt
at a landing the brake is applied and the
drive is told to turn off. However,
components of the mechanical brake must
‘set’ ever so slightly in order to generate
enough torque to hold the car. This small
movement can cause a significant ‘bump’
if the transfer of torque occurs too quickly.
This effect is essentially eliminated by the
Torque Ramp Down function.
The Ramped Stop Select function is
enabled at (RAMPED STOP SEL(C1)).
The Ramped Stop Time Parameter
determines the rate of motor torque decay
with ramped stop enabled. RAMPED
STOP TIME(A1) determines the amount of
time it would take for the drive to ramp
from rated torque to zero torque. The
actual time for torque decay to occur on a
typical stop will depend on the actual
amount of torque required to hold the car.
sec 0.20 0.00 – 2.50
Y N
CONTACT FLT
TIME
(Contactor Fault Time)
Determines
allowable time for motor contactor
feedback to be out of sync with
commanded state before a CONTACTOR
FLT occurs.
sec 0.50 0.10 – 5.00
Y N
BRAKE PICK
TIME
(Brake Pick Time) If BRAKE PICK CNFM
is set to INTERNAL TIME this parameter
sets the internal time the drive waits until it
assumes the brake has been picked. If
BRAKE PICK CNFM is set to EXTERNAL
TB, this parameter sets the time the drive
waits until it receives a brake pick
confirmation or a BRK PICK FLT will be
declared.
sec 1.00 0.00 – 5.00
Y N
BRAKE HOLD
TIME
(Brake Hold Time)
Determines the time
the drive will wait until a BRK HOLD FLT is
declared if a logic input is set to MECH
BRK HOLD
sec 0.20 0.00 – 5.00
Y N
31