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1
Scope of application
Use as braking device – part of the the protection device against overspeed for the car moving
1.1
in upwards direction – permissible brake torque and tripping rotary speed
1.1.1
Permissible brake torque when the braking device acts on the shaft of the traction sheave while the
car is moving upward
Permissible brake torque
2 x 1200 = 2400
2 x 1700 = 3400
2 x 1800 = 3600
2 x 2065 = 4130
1.1.2
Maximum tripping speed of the overspeed governor and maximum rated speed of the lift
The maximum tripping speed of the overspeed governor and the maximum rated speed of the lift
must be calculated on the basis of the traction sheave's maximum tripping rotary speed as outlined
below taking into account traction sheave diameter and car suspension.
v =
Use as braking element – part of the protection device against unintended car movement (act-
1.2
ing in up and down direction) – permissible brake torque, tripping rotary speed and character-
istics
1.2.1
Nominal brake torque and response times with relation to a brand-new brake element
Nominal
brake
torque*
[Nm]
2 x 1200 = 2400
2 x 1200 = 2400
2 x 1700 = 3400
2 x 1800 = 3600
2 x 2065 = 4130
Explanations:
*
Nominal brake torque:
** Response times:
1.2.2
Assigned execution features
Type of powering / deactivation
Nominal air gap
Damping elements
Note: The English text is a translation of the German original. In case of any discrepancy, the German version is valid only.
Annex to the EC Type-Examination Certificate
No. EU-BD 881 of 2016-03-18
(Nm)
v
=
Tripping (rated) speed (m/s)
iameter of the traction sheave from rope's center to rope's center (m)
D
=
TS
n
=
3,14
n
=
Rotary speed (rpm)
i
i
=
Ratio of the car suspension
Maximum
Maximum response times**
tripping
rotary
with / without overexcitation
speed
[rpm]
t
10
255
160 / 197
455
189 / 207
455
61 / 73
455
59 / 70
255
89 / 108
Brake torque assured for installation operation by the safety component manufac-
turer.
t
time difference between the drop of the braking power until establishing X% of
X
the nominal brake torque, t
the examination recording
Maximum tripping rotary speed of the traction sheave
[ms]
t
t
50
214 / 252
267 / 306
290 / 295
390 / 382
123 / 136
184 / 199
110 / 122
160 / 174
158 / 177
226 / 247
optionally calculated t
50
continuous current / continuous current end
(rpm)
455
Overexcitat
Brake
control
[
non-release
parallel or se-
]
rial
90
parallel
serial
parallel
parallel
parallel
= (t
+ t
)/2 or value taken from
50
10
90
ion at
[x- fold
voltage]
2-fold
1,43-fold
2-fold
2-fold
2-fold
0.45 mm
YES
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