10
CHARACTERISTICS
FFB Brake Motors Maintenance Guide
5287 en - 2019.07 / d
5 - CHARACTERISTICS
5.1 - Braking moments
The braking torque is defined according to the number, position of the springs and their colour, according to the values indicated in
the following table.
Running-in: all brake linings (complete brake, disc only: see § 2.2) are run-in in the plant before assembly onto the motor. The
stated dynamic braking torque is optimum (tolerance from -10 to +40%).
Braking moments (N.m) specified for information; in case of normative restriction, please consult us.
Nbr of
springs
FFB1
FFB2
FFB3
FFB4
FFB5
Colour
M
f
(N.m)
Colour
M
f
(N.m)
Colour
M
f
(N.m)
Colour
M
f
(N.m)
Colour
M
f
(N.m)
3
Purple
(RAL 4008)
4.5
White
(RAL 1013)
11
-
-
Brown
(RAL 8017)
41
-
-
4
6
15
-
-
55
-
-
5
7.5
1
19
Orange yellow
(RAL 2000)
37
69
-
-
6
9
23
45
83
Black
(RAL 9005)
120
7
10.5
26
52
96
140
8
12
30
59
110
160
9
-
-
-
-
67
-
-
180
10
-
-
-
-
-
-
-
200
1
7,5 N.m maximum braking torque on size 71
5.2 - Spring position
Brake
type
Positions
Qty
j
k
l
m
n
o
p
q
r
s
FFB1
FFB2
FFB4
3
4
5
6
7
8
FFB3
9
FFB5
10
1
10
9
8
7
6
5
4
3
2
5.3 - Electromagnets
As certain direct current coils are difficult to differentiate by
their dimension, measure the coil's resistance using an
Ohmmeter on an appropriate calibre and compare with the
value indicated in the table below.
These values are theoretical, calculated for an ambient
temperature of +20°C.
Characteristics of the electromagnets ±5 %, at +20°C
180V coil
ID300/302 brake control
option - ESFR VMA 31 to 34
20V coil
Brake
type
Intensity
A
Resistance
Ω
Power
W
Intensity
A
Resistance
Ω
Power
W
FFB1
0.232
776
42
1.974
10.1
39
FFB2
0.295
610
53
2.633
7.6
53
FFB3
0.345
522
62
2.793
7.2
56
FFB4
0.339
530
61
3.602
5.6
72
FFB5
0.547
329
98
4.211
4.8
84
Coil cable passage
