Configuration Mode (ConF)
BRAKE LOGIC CONTROL
Us ed to control an electrom agnetic brake by the drive, for horizontal and vertical hois ting applications, and for
unbalanced m achines.
Principle:
- Vertical hois ting m ovem ent:
Maintain m otor torque in the driving load holding direction during brake opening and closing, in order to hold
the load, s tart sm oothly when the brake is releas ed and stop sm oothly when the brake is engaged.
- Horizontal m ovem ent:
Synchronize brake release with the build-up of torque during s tartup and brake engage at zero speed on
stopping, to help to prevent jolting.
Instructions for brake logic control for a vertical hoisting application:
•
[Brake
impu
lse]
(
bI
P
):
[Yes]
(
YES
). Ens ure that the direction of rotation FW corres ponds to lifting the
load.
For applications in which the load being lowered is very different from the load being lifted, set
bIP
=
2
Ibr
(for exam ple, ascent always with a load and des cent always without a load).
•
Brake releas e current (
[Brake
re
le
ase
I FW
]
(
Ibr
) and
[Brake
release
I
Rev]
(
Ir
d
) if
[Brake
impu
lse]
(
bIP
) = 2
Ibr
): Adjus t the brake releas e current to the rated current indicated on the m otor.
During tes ting, adjus t the brake releas e current in order to hold the load sm oothly.
•
Acceleration tim e: For hois ting applications, it is advis able to s et the acceleration ram ps to m ore than 0.5
seconds . Ens ure that the drive does not exceed the current lim it.
The sam e recom mendation applies for deceleration.
Rem inder: For a hois ting m ovem ent, a braking res is tor should be us ed.
•
[Brake
Re
le
ase
time]
(
br
t
): Set according to the type of brake. It is the tim e required for the m echanical
brake to release.
•
[Brake
release
fr
equ
e
n
cy]
(
bI
r
), in open-loop m ode only: Leave in
[Auto]
(
AUtO
), adjus t if
necess ary.
•
[Brake engage frequency]
(bEn): Leave in
[Auto]
(AUtO), adjus t if neces sary.
•
[Brake engage time]
(bEt):
Set according to the type of brake. It is the tim e required for the m echanical
brake to engage.
Instructions for brake logic control for a horizontal hoisting application:
•
[Brake
impu
lse]
(
bI
P
): No
•
[Brake
release
I FW
]
(
Ib
r
): Set to 0.
•
[Brake
Re
le
ase
time]
(
br
t
): Set according to the type of brake. It is the tim e required for the m echanical
brake to release.
•
[Brake engage frequency]
(bEn), in open-loop m ode only: Leave in
[Auto]
(AUtO), adjus t if
necess ary.
•
[Brake engage time]
(bEt):
Set according to the type of brake. It is the tim e required for the m echanical
brake to engage.
Parameters described in this page can be accessed by:
DRI- > CONF > FULL > FUN- > BLC-
WARNING
UNANTICIPATED EQUIPMENT OPERATION
Verify that the selected settings will not result in the loss of control
of the load being lifted.
Failure to follow these instructions can result in death, serious injury, or equipment damage.
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