Mayr ROBA-stop-M User manual

C US
K.891.V09.GB
ROBA-stop®-M
Electromagnetic safety brakes
Fast and cost-effective installation
High Protection IP54 / IP65
Maintenance-free for the rotor lifetime
●
●
●
your reliable partner
ROBA-stop
®
Always the
safest choice
for brakes
www. .de

2
6
1
3
5
Advantages for Your Applications
Easy installation
Brake outer diameter completely enclosed
(higher protection can easily be realised)
Magnetic coil is designed for a relative duty cycle of 100 %
Magnetic coil and casting compound correspond to insulation
material class F
The nominal air gap is constructionally specified and
inspected
Short switching times
Maintenance-free for rotor lifetime
Designs and Variants
See Type key on page 3, Dimensions Figs., Technical Data and
Dimensions Sheets on pages 4 and 5 and Further Options on
page 10.
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❑
❑
❑
❑
❑
❑
Function
ROBA-stop®-M brakes are spring applied, electromagnetic safety
brakes.
Spring applied:
In a de-energised condition, helical springs (6)
press against the armature disk (5). The rotor
(3) is held between the armature disk (5) and
the corresponding mounting surface of the
machine. The shaft is braked via the gear
hub (1).
Electromagnetic:
When the power is switched on, a magnetic
field is built up. The armature disk (5) is
attracted to the coil carrier (2) against the
spring pressure. The brake is released and
the shaft is able to rotate freely.
Safety brakes:
The brake brakes reliably and safely in the
event of power switch-off, a power failure or
an EMERGENCY STOP.
Your Reliable Brake
easy installation
short switching times
different torque variants
due to variable equipment
insulation material class F;
100 % duty cycle
long service lifetime
low wear
minimum torsional backlash
due to accurate toothing
completely enclosed
IP54 / IP65
ROBA-stop®-M electromagnetic safety brakes
22

Order Number
Nominal torque holding brake
Nominal torque standard
84 % nominal torque 6)
68 % nominal torque 6)
50 % nominal torque 6)
34 % nominal torque 6)
Nominal torque adjustable 2) 6)
112 % nominal torque 6)
125 % nominal torque 6)
0
1
2
3
4
5
6
7
8
0
1
2
3
4
5
Without supplementary parts
Hand release 1)
Friction disk 7)
Hand release/Friction disk 1) 7)
Flange plate 8)
Hand release/Flange plate 1) 8)
__ / 8 9 1 . __ __ __ . __ / __ / __ / __
Sizes
2
up to
1000
Standard brake metal rotor3)
Holding brake metal rotor
Standard brake
Friction lining rotor 4)
0
1
2
Standard 11)
Enclosed
design IP65 5)
Tacho design 5)
Central torque
adjustment 2)
0
1
2
3
Coil voltage 9)
[VDC]
24 10)
104
180
207
Bore
Hub Ø d
(please observe
dimensions
pages 4-5,
Table 2, page 7)
Keyway acc.
DIN 6885/1
or
DIN 6885/3
Example: 16 / 891.211.0 / 24 / 16 / 6885/1 For Further Options, see page 10.
ROBA-stop®-M brakes are also available in ATEX-design
according to the directive 94/9 EC (ATEX 95)
(Please contact the manufacturer separately for this).
ROBA-stop®-M electromagnetic safety brakes
Please Observe:
According to German notation, decimal
points in this document are represented
with a comma (e.g. 0,5 instead of 0.5).
We reserve the right to make dimensional
and constructional alterations.
1) Hand release not installed on sizes 2 – 500.
Size 1000: hand release only available
as emergency hand release.
Hand release for IP65 design only ex works.
2) On request
3) From size 60
4) Up to size 32 (for brake operation in hoisting
device drives, please contact the manufacturer)
5) Not in combination with friction disk
6) See Technical Explanations pages 6 – 7
7) Sizes 2 – 60
8) Standard tacho brake flange plate
9) Brake operation only with overexcitation
on size 500 from 700 Nm onwards
and on size 1000.
10) Not possible on size 1000.
11) Standard and tacho design are identical
on size 1000.
ROBA-stop®-M Page 4
Sizes 2 up to 1000
Braking torques
0,7 up to 1400 Nm
(Standard brake)
4 up to 1600 Nm
(Holding brake)
Permitted shaft diameters
8 up to 90
Type 891._11.0
Type 891._12.0
Type 891._14.1
Type 891._14.2
Standard design
Page 5
Standard design with friction disk
IP65 design with flange plate
Tacho attachment design with flange plate
Short Description Installation Page 6
Brake Dimensioning, Friction-Power Diagrams Page 8
Further Options Page 10
Switching Times, Electrical Connection, Electrical Accessories Page 11
Guidelines Page 19
33

l
x
L
+ 0,1
- 0,05
K
c
Ø G
s
Ø D h9
Ø M
Ø R
Ø r
Ø d H7
H
a
F1
Ø f
F
90° (3x120°)
0° (2x180°)
245°
ROBA-stop®-M electromagnetic safety brakes
air gap
(+ 0,2 on size 500)
Cable approx. 400 mm long for sizes 2 – 60,
for sizes 100 – 500 approx. 600 mm long
for size 1000 approx. 2000 mm long
Type 891._11.0
Bores Size
2 4 8 16 32 60 100 150 250 500 1000
Bore Ø dH7 2)
Standard brake
Type 891.0_ _._
2
min. [mm] 8 10 11 14 19 22 24 30 40 1.1) 50 1.1) 75
max. [mm] 15 15 20 25 30 35 45 50 60 80 90
Please observe Table 2, page 7
Holding brake
Type 891.1_ _._
min. [mm] 8 10 11 14 19 22 24 30 40 50 75
max. [mm] 15 15 20 25 30 35 45 50 55 75 90
Please observe Table 2, page 7
Technical Data Size
2 4 8 16 32 60 100 150 250 500 1000
Braking torque
Standard brake 1)
Type 891.0
2_ _._
Mnom
[Nm] 2 4 8 16 32 60 100 150 250 500 1.2) 1000 5)
Holding brake 1.2)
Type 891.1_ _._ Mnom [Nm] 4 8 16 32 64 100 180 250 450 800 3) 1600 5)
Input power Pnom [W] 19 25 29 38 46 69 88 98 120 152 186
Maximum speed nmax. [rpm] 6000 5000 4000 3500 3000 3000 3000 1500 1500 1500 1500
Weight
Standard brake
Type 891.0
2
_ _._ m[kg] 0,76 1,1 1,8 3,4 4,5 7,4 13,6 19,2 33,3 38 79
Holding brake
Type 891.1_ _._ m[kg] 0,76 1,1 1,8 3,4 4,5 7,4 13,6 19,2 33,3 38 79
Dimensions
[mm]
Size
2 4 8 16 32 60 100 150 250 500 1000
a0,15 0,15 0,2 0,2 0,2 0,25 0,3 0,3 0,35 0,4 0,5
b30 30 36 42 52 60 78 84 96 130 180
b130 30 36 42 52 62 - - - - -
c24 26,5 28,7 35,5 39,2 50,5 54 59 69 70 85
c125 27,5 29,7 36,8 40,5 51,8 - - - - -
c229 32,5 34,7 42,5 47,2 58,5 64 71 83 89 106
D76 87 103 128 148 168 200 221 258 310 382
D181 92 108 130 148 168 200 221 258 310 382
D281 92 108 134 154 174 206 227 266 318 392
F48,5 54 63,5 77 88 100,5 123 133 153 179 -
F1102,5 108 117,5 131 169 228,5 267 347 494 521 -
f8 8 8 8 10 14 14 19 23 23 -
44

c1
Ø b1
Ø D h9*
L3
L
h
K1
L4
L
h1
K2
Ø b
Ø D1 h9 *
c2
Ø G2
H8
g
c2
Ø b
Ø Z
Ø s1
z
t
Ø Dg7
Ø G1
H7
Ø D2
Ø M1
L5
L2
h1
K3
ROBA-stop®-M electromagnetic safety brakes
Type 891._12.0
Standard with friction disk
Type 891._14.1
Enclosed design (IP 65)
with flange plate
Type 891._14.2
Tacho attachment design
with flange plate
1) Braking torque tolerance = +30 %/-10 %, for other adjustments see
Table 3, page 7 and Type key page 3.
1.1) Minimum bore not permitted for braking torque adjustment = 125 %.
1.2) Braking torque tolerance = +40 %/-20 % (slight grinding necessary).
2) The respective maximum bores are to be seen in relation to the
corresponding keyways and their tolerances acc. Table 2 page 7.
3) Brake operation from 700 Nm on only possible with overexcitation.
4) Hub facing side (both sides) 3 mm deep, Ø 97 recessed.
5) Brake operation only possible with overexcitation.
6) The IP65 design is equipped with a sealing cover on size 1000:
L = 149 mm, L4= 170 mm.
7) Projection screw plugs (emergency hand release): 8,5 mm
8) For flange plate securement: additional 2 x M12 screws (dimensions
available on request).
Standard voltages 24; 104; 180; 207 V. We reserve the right to make dimensional and constructional alterations.
Permitted voltage tolerance acc. DIN IEC 60038 (±10 %).
* Outer diameter friction disk: free size; outer diameter flange plate: -0,2 Missing dimensions are identical with Type 891.011.0 see page 4.
Dimensions
[mm]
Size
2 4 8 16 32 60 100 150 250 500 1000
G16,5 18 22 33 36 38 48 55 65 85 100
G123,5 28,5 32,5 40,5 52,5 60 75,5 82,5 92 131 100
G2H8 - - 22 22 28 32 42 48 52 62 100
g44444456777
H16 14,5 17,5 26 27 26 34 41 46 54,5 -
h1 1 1 1,25 1,25 1,25 - - - - -
h15 6 6 7 8 8 10 12 14 19 21
K10 10,8 12,5 12,3 8,3 12 12 20 20 22 18,5
K19 9,8 11,5 11,1 7,1 10,8 - - - - -
K210 8,8 11,5 10,3 10,3 14 12 18 25,5 21,5 17,5
K310 9,8 11,5 10,3 10,3 14 12 18 26 23 19
L39 41,5 45,2 55,7 61,7 72,5 84 97 116 114 135 6) 7)
L238 40,5 44,2 54,7 60,7 71,5 83 96 115 113 135 7)
L340 42,5 46,2 57 63 73,8 - - - - -
L444 47,5 51,2 62,7 69,7 80,5 94 109 130 133 170 6)
L543 46,5 50,2 61,7 68,7 79,5 93 108 129 132 156 7)
l18 18 20 20 25 30 30 35 40 50 4) 70
supporting length of the key
M66 72 90 112 132 145 170 196 230 278 325
M129 35 41 52 61 75 88 100 112 145 115,5
R57 65 81 101 121 130,5 154 178 206 253 300
r45 45 53 70 83 94 106 122 140 161 190
s3 x M4 3 x M4 3 x M5 3 x M6 3 x M6 3 x M8 3 x M8 3 x M8 3 x M10 6 x M10 6 x M12 8)
s13 x M3 3 x M4 3 x M4 3 x M4 3 x M5 3 x M5 3 x M5 3 x M6 3 x M6 6 x M8 6 x M6
t6 10 10 10 10 10 10 10 10 13 12
x0 0 0 0 - 0,5 0 - 0,5 0 - 2 0 - 3 0 - 3 0 - 3 3 - 4 0 – 1,5
Z36 45 55 65 75 90 100 115 130 175 -
z1111111111-
55

12 13
14
7
2
11
10
5
15
12
8
7
2
6
9
1
3
5
F
α
Installation Conditions
The eccentricity of the shaft end against the mounting pitch
circle may not exceed 0,2 mm.
The position tolerance of the threaded holes for the cap screws
(8, Fig. 2) may not exceed 0,2 mm.
The axial run-out deviation of the screw-on surface to the shaft
may not exceed the permitted axial run-out tolerance according
to DIN 42955. Larger deviations can lead to a drop in torque, to
continuous slipping on the rotors and to overheating.
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❑
❑
Installation
ROBA-stop®-M brakes are very easy to install:
1. Mount the hub (1) onto the shaft and secure it axially (e.g. using
a locking ring).
– Recommended tolerance of hub-shaft connection = H7/k6.
– Avoid too tight hub-shaft connections (especially on max.
bores). They lead to the rotor (3) jamming on the hub (1) and
therefore to brake malfunctions.
– Keep the friction surfaces free of oil and grease.
Warning!
Please observe supporting length of the key
acc. Dimensions on page 5.
2. If necessary (dependent on Type), move the friction disk or the
flange plate over the shaft and attach it to the machine wall (or
screw on for size 1000).
– If there are no suitable counter-friction surfaces made of grey
cast or steel available, please use brake Types 891._ _2/3._
(with friction disk (9)) or 891._ _.4/5._ (with flange plate).
When using a brake with a friction disk (Type 891._ _2/3._),
please observe the stamp “friction side” on the friction disk.
3. Push the rotor (3) onto the hub (1) by hand.
4. If necessary, install the hand release (only on sizes 2 - 500/the
emergency hand release is partly assembled on size 1000).
5. If necessary (dependent on Type, Type 891._ _ _.1), insert the
O-ring into the axial recess of the coil carrier (2).
6. Push the rest of the brake over the hub (1) and the rotor collar (3).
7. Attach the brake to the motor bearing shield or onto the machine
wall evenly all around by using the cap screws (8) incl. the
manufacturer-side mounted flat sealing ring (dependent on Type,
Type 891._ _ _.1), torque wrench and tightening torque (acc.
Table 1, page 7).
Warning!
Only use mayr
®
original screws (Table 1, page 7).
Braking Torque Adjustment
It is possible to achieve different torque settings or torque reductions
by using different spring configurations (6) in the coil carrier (2) (see
Table 3, page 7).
Design with continuous setting available on request.
Maintenance
ROBA-stop®-M brakes are mainly maintenance-free.
However, the rotor (3) is subject to functional wear. The friction
linings are robust and wear-resistant. This ensures a particularly
long service lifetime.
However, if the rotor (3) does become worn due to high total friction
work, the brake can be brought back into its original functional
condition by replacing the rotor. For this, the brake must be cleaned
thoroughly.
The wear condition of the rotor (3) is determined by measuring the
release voltage (this must not exceed max. 90 % of the nominal
voltage on a warm brake), or by measuring the rotor thickness on a
dismantled brake (“minimum rotor thickness” acc. Table in the cur-
rently valid Installation and Operational Instructions). On sizes 500
and 1000 there is an air gap inspection opening. This means that the
brake does not have to be dismantled.
Warning!
The brake function cannot be guaranteed on brakes with a reduced
braking torque and/or operation with a fast-acting rectifier if the
friction linings are heavily worn.
Unpermittedly high wear cannot be recognized via the switching
behaviour of the brake, as in this constellation the magnetic coil (7)
is able to manage a very high tension path of the armature disk (5).
Unpermittedly high wear causes the thrust springs (6) to relax, which
results in a decrease in torque.
Fig. 2
Fig. 1
Hand Release Installation (Sizes 2 – 500)
On Type 891._ _ _.1 installation of the hand release is only possible
if a request for a hand release is stated on the brake order form
(completely enclosed coil carrier (2)).
The brake must be dismantled and de-energised for the hand
release installation.
Installation Procedure (Figs. 1 and 2):
1. Unscrew brake from the motor bearing shield or from the
machine wall.
2. Remove the sealing plugs from the hand release bores in the coil
carrier (2).
3. Put the thrust springs (10) onto the threaded bolts (11). The
threaded bolts (11) are manufacturer-side produced with a key
as a tension element and are secured with glue up to size M60.
This connection must not be loosened.
4. Push the threaded bolts (11) with thrust springs (10) from the
inside (facing the magnetic coil (7)) into the hand release bores in
the coil carrier (2).
5. Push the O-rings (only with sealed hand release, Type 891._ _ _.1)
over the threaded bolts (11) and insert them into the recesses of
the coil carrier (2).
6. Push intermediate plates (only with sealed hand release, Type
891._ _ _.1) over the threaded bolts (11).
7. Put the switch bracket (12) in place, put washers (13) onto it and
lightly screw on the self-locking hexagon nuts (14).
8. Tighten both hexagon nuts (14) until the armature disk (5) lies
evenly on the coil carrier (2).
9. Loosen both hexagon nuts (14) by “Y” turns (see Table 1, page 7),
thereby creating an air gap between the armature disk (5) and the
coil carrier (2) or the inspection dimension “x” (Fig. 1).
Warning!
An unequal alignment dimension on the hand release can
cause the brake to malfunction.
10.After installing the release cover, screw the hand release bar (15)
into the switch bracket (12) and tighten it. The hand release
bar (15) must be protected against loosening with a screw-
securing product, e.g. Loctite 243.
Inspection
dimension
“x”
ROBA-stop®-M – Short Description Installation
66

ROBA-stop®-M – Short Description Installation
Technical Data for Installation Size
2 4 8 16 32 60 100 150 250 500 1000
Inspection dimension
x
[mm] 0,9 +0,1 0,9 +0,1 1,1 +0,1 1,6 +0,1 1,8 +0,1 2,2 +0,1 2,2 +0,1 2,2 +0,1 2,4 +0,1 2,4 +0,1 -
Number of rotations Y[-] 1,7 1,7 1,5 2,0 2,0 2,0 1,6 1,6 1,5 1,5 -
Release force
Standard brake
Type 891.0 _ _._
2
F[N] 20 35 70 100 130 220 260 290 350 310 -
Holding brake
Type 891.10 _._ F[N] 26 45 90 125 170 300 340 350 430 470 -
Release angle a[°] 6 7 7 7 8 10 12 13 10 10 -
Fixing
screws (8)
Type 891._ _0._
[-]
3 x
M4 x
45
3 x
M4 x
45
3 x
M5 x
50
3 x
M6 x
60
3 x
M6 x
60
3 x
M8 x
75
3 x
M8 x
80
3 x
M8 x
100
3 x
M10 x
110
6 x
M10 x
110
6 x
M12 x
130
DIN 6912 6912 6912 6912 6912 6912 EN ISO
4762
EN ISO
4762
EN ISO
4762
EN ISO
4762
EN ISO
4762
Type 891._ _4._
[-]
3 x
M4 x
50
3 x
M4 x
50
3 x
M5 x
55
3 x
M6 x
65
3 x
M6 x
70
3 x
M8 x
85
3 x
M8 x
90
3 x
M8 x
110
3 x
M10 x
130
6 x
M10 x
130
6 x
M12 x
150
DIN EN ISO
4762
EN ISO
4762 6912 6912 EN ISO 4762
EN ISO
4762
EN ISO
4762
EN ISO
4762
EN ISO
4762
EN ISO
4762
EN ISO
4762
Tightening torque for screws (8) TA[Nm] 2,5 2,5 5,0 9,0 9,0 22 22 22 45 45 83
Rotor thickness “new condition“ [mm] 6,05 6,05 6,9 8 10,4 11,15 14 15,5 17 18,5 18,5
Table 1
Permitted Bores Ø dmax
Size
2 4 8 16 32 60 100 150 250 500 1000
Ø dmax
Type 891.0_ _._
2
Keyway
JS9
6885/1 13 13 18 22 30 32 42 45 55 75 90
6885/3 15 15 20 25 - 35 45 50 60 80 -
Keyway
P9
6885/1 13 13 18 20 28 32 42 45 50 75 90
6885/3 15 15 20 22 30 - 45 50 55 80 -
Type 891.1_ _._
Keyway
JS9
6885/1 13 13 18 22 30 32 42 45 55 75 90
6885/3 15 15 20 25 - 35 45 50 - - -
Keyway
P9
6885/1 13 13 18 20 28 32 42 45 50 75 90
6885/3 15 15 20 22 30 - 45 50 55 - -
Table 2
Braking Torque Adjustments Size
2 4 8 16 32 60 100 150 250 500 1000 3)
Holding brake [Nm] 4 8 16 32 64 100 180 250 450 800 2) 1600
Standard brake
Braking torque 4)
in %
125 % [Nm] 2,5 5 10 20 40 75 125 185 312 700 1) 1400
112 % [Nm] 2,2 4,5 9 18 36 68 110 165 280 560 1200
100 % [Nm] 2 4 8 16 32 60 100 150 250 500 1000
84 % [Nm] 1,7 3,4 6,8 13,5 27 51 85 125 215 400 800
68 % [Nm] 1,4 2,8 5,5 11 22 42 70 100 180 350 700
50 % [Nm] 1 2 4 8 16 30 50 75 125 250 500
34 % [Nm] 0,7 1,4 2,8 5,5 11 21 35 50 90 200 400
Table 3
1) Brake operation only as holding brake.
2) Brake operation from 700 Nm only possible with overexcitation.
3) Brake operation only possible with overexcitation.
4) The braking torque (switching torque) is the torque effective in the shaft train of a slipping brake with a sliding speed of 1 m/s in relation to the mean friction
radius (acc. VDE 0580/07.2000). 77

ROBA-stop®-M – Brake Dimensioning
Brake Dimensioning
Friction work
per 0,1 mm
wear
Standard brake
Type 891.0_ _._
2
Qr 0,1 [106 J/0,1] 35 40 65 100 130 130 140 150 160 200
Holding brake
Type 891.1_ _._ Qr 0,1 [106 J/0,1] 7 8 13 20 30 65 70 75 80 100
Friction work
on rotor
replacement
Standard brake
Type 891.0_ _._
2
Qr tot. [106 J] 95 100 162 500 600 700 840 950 1000 2000
Holding brake
Type 891.1_ _._ Qr tot. [106 J] 7 8 13 20 45 130 170 300 350 500
Mass
moment
of inertia
rotor + hub
on dmax
Type 891.0_ _._
1
(Metal rotor)
J[10-4 kgm²] 0,12 0,21 0,67 1,74 4,48 6,74 16,54 31,68 61,82 222,6
Type 891.2_ _._
(Friction lining rotor) J[10-4 kgm²] 0,1 0,17 0,58 1,53 4,1 - - - - -
Weight
Standard brake
Type 891.0_ _._
2
m[kg] 0,76 1,1 1,8 3,4 4,5 7,4 13,6 19,2 33,3 38
Holding brake
Type 891.1_ _._ m[kg] 0,76 1,1 1,8 3,4 4,5 7,4 13,6 19,2 33,3 38
Please Observe!
Due to operating parameters such as slipping speed, pressing or temperature, the wear values can only be considered guideline values.
When using a brake with a friction disk (Type 891._ _2._), the max. friction work and friction power must be reduced by 30 % for sizes 2 to
16 and by 50 % for sizes 32 – 60.
The wear values Qr 0,1 and Qr tot. are therefore not valid.
1. Brake selection Key:
Mreq. =9550 x P x K ≤M2[Nm]
J [kgm²] Mass moment of inertia
nK [-] Safety factor
(1 – 3 x acc. to conditions)
tv= J x n [sec]
9,55 x MvMreq. [Nm] Required braking torque
t4= tv+ t1[sec] Mv[Nm] Delaying torque
Mv= M2+ (-)* ML[Nm] ML[Nm] Load torque * sign in brackets is valid if load
is braked during downward movement
2. Inspection of thermic load M2[Nm] Nominal torque (Technical Data page 4)
Qr=J x n² x M2[J/braking]
n [rpm] Speed
182,4 MvP [kW] Input power
tv[s] Braking action
The permitted friction work (switching work) Qr perm. per braking for
the specified switching frequency can be taken from the friction-
power diagrams (page 9).
If the friction work (switching work) per braking is known, the max.
switching frequency can also be taken from the friction-power
diagrams (page 9).
t1[s] Connection time (Table 6 page 10)
t4[s] Total switch-on time
Qr[J/braking] Friction work present per braking
Qr 0,1 [J/0,1] Friction work per 0,1 wear (Table 4)
Qr tot. [J] Friction work up to rotor replacement (Table 4)
Brake Size Selection
Mass Moment of Inertia Size
Rotor + hub at dmax 2 4 8 16 32 60 100 150 250 500 1000
Type 891.0
1
_ _._
(Metal rotor) JR+H [10-4 kgm²] 0,12 0,21 0,67 1,74 4,48 6,74 16,54 31,68 61,82 222,6 424
Type 891.2_ _._
(Friction lining rotor) JR+H [10-4 kgm²] 0,1 0,17 0,58 1,53 4,1 - - - - - -
Table 5
Friction Work Size
2 4 8 16 32 60 100 150 250 500 1000
Per 0,1 mm
wear
Standard brake
Type 891.0
2 _ _._ Qr 0,1 [106 J/0,1] 35 40 65 100 130 130 140 150 160 170 180
Holding brake
Type 891.1_ _._ Qr 0,1 [106 J/0,1] 7 8 13 20 30 65 70 75 80 85 90
Up to rotor
replacement
Standard brake
Type 891.0
2 _ _._ Qr tot. [106 J] 95 100 162 500 600 700 840 950 1000 1700 2000
Holding brake
Type 891.1_ _._ Qr tot. [106 J] 7 8 13 20 45 130 170 300 350 425 540
Table 4
88

ROBA-stop®-M – Friction-Power Diagrams
Friction-Power Diagrams
Type 891.01_._
and
Type 891.21_._
(Standard brake)
for 50 %
of the maximum speed nmax
Permitted switching work Qr perm. [J/braking]
Size 1000
Size 500
Size 250
Size 150
Size 100
Size 60
Size 32
Size 16
Size 8
Size 4
Size 2
Switching frequency [1/h] Diagram 1
Type 891.01_._
and
Type 891.21_._
(Standard brake)
for the
maximum speed nmax
Permitted switching work Qr perm. [J/braking]
Size 1000
Size 500
Size 250
Size 150
Size 100
Size 60
Size 32
Size 16
Size 8
Size 4
Size 2
Switching frequency [1/h] Diagram 2
Type 891.10_._ (Holding brake) Type 891.10_._ (Holding brake)
for 50 % of the maximum speed nmax for the maximum speed nmax
Permitted switching work Qr perm. [J/braking]
Size 1000
Size 500
Size 250
Size 150
Size 100
Size 60
Size 32
Size 16
Size 8
Size 4
Size 2
Permitted switching work Qr perm. [J/braking]
Switching frequency [1/h] Switching frequency [1/h]
Diagram 3 Diagram 4
10
100
1 000
10 000
100 000
1 000 000
1 10 50
10
100
1 000
10 000
100 000
1 10 50
10
100
1 000
10 000
100 000
1 000 000
1 10 100 1 000
10
100
1 000
10 000
100 000
1 000 000
1 10 100 1 000
99

1
2
3
4
3
1
2
31
2
5
1
1
2
1
5
6
8
1
7
ROBA-stop®-M – Further Options
Further Options
Air gap “a“
Air gap “a“
Release inspection
When the magnetic coil in the coil
carrier (Item 2) is energised, the
armature disk (Item 3) is pulled
towards the coil carrier (Item 2).
The microswitch (Item 1) emits a
signal and the brake is released.
Wear inspection
Due to wear on the rotor (Item 5),
the nominal air gap “a” between
the coil carrier (Item 2) and the
armature disk (Item 3) increases.
If the limit air gap (see Table in
the Installation and Operational
Instructions) is reached, the
microswitch contact (Item 1)
switches over and emits a signal.
The rotor (Item 5) must
be replaced.
In de-energised
condition, the brake
with lockable hand
release can be
released manually.
By moving the hand
release rod (Item 1),
the armature disk
(Item 3) is pushed
against the thrust
springs (Item 4) onto
the coil carrier (Item
2) and the braking
torque is removed.
Hand release in
starting position
Hand release in
engaged position
Coil
energised Shaft braked Shaft runs free
de-energised Shaft runs free Shaft runs free
Continuous shaft with IP65
The enclosed design (IP65) is
equipped with a screw plug (sizes 8
to 500) or with a sealing cover (size
1000) (see Type 891._14.1, page 5)
as part of the standard delivery.
A radial shaft sealing ring (Item 1)
is installed in the coil carrier (Item 2)
on continuous shafts.
Damping rotor/gear hub
If vibrations in the drive line cannot
be avoided, an O-ring (Item 1)
is used to damp backlash between
the gear hub (Item 6) and the rotor
(Item 5).
Anti-condensation heating
The anti-condensation heating
(Item 1) is used to prevent
condensation formation
inside the brake.
This product is particularly
useful at temperatures of under
zero degrees Celsius or in high
humidity.
Special flange plate
We offer a range of flange plates
for customer-specific solutions,
such as for example the special
flange plate shown in Fig. 7
(Item 1) with customer-tailored
centring (Item 8) and sealing
(Item 7).
Lockable hand release
In addition to the standard brakes, mayr®power transmission
provides a multitude of further designs, which cannot be described
in detail in this catalogue.
Some of the most frequently requested options are:
Microswitch for switching condition indication (release
inspection)
Microswitch for wear indication (wear inspection)
Special coil voltages
Lockable hand release
IP65 design for continuous shafts
Noise damping (O-ring damping between the gear hub
and the rotor)
Anti-condensation heating
Customer-specific flange plate
Special lubricating material
ATEX design
Please contact mayr®for further information.
•
•
•
•
•
•
•
•
•
•
Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
1010

1
t
1
t
2
2
IM
Magnetic Field Build-up
When the voltage is switched on, a magnetic field is built up in the
brake coil, which attracts the armature disk to the coil carrier and
releases the brake.
Field Build-up with Normal Excitation
If we energise the magnetic coil with nominal voltage, the coil
voltage does not immediately reach its nominal value. The coil
inductivity causes the current to rise slowly as an exponential
function. Accordingly, the build-up of the magnetic field happens
more slowly and the braking torque drop (curve 1, below) is also
delayed.
Field Build-up with Overexcitation
A quicker and safer drop in braking torque is achieved if the coil
is temporarily placed under a higher voltage than the nominal
voltage, as the current then increases more quickly. Once the brake
is released, it is possible to switch to the nominal voltage (curve
2, below). The relationship between the overexcitation and the
separation time t2is roughly proportional indirectly; this means that
at doubled nominal voltage, the separation time t2for brake release
is halved. The ROBA®-switch fast-acting rectifier works on this
principle.
•
•
Current path Braking torque path
Inom
Mnom
Operation with overexcitation requires testing of:
- the necessary overexcitation time * (page 12)
- as well as of the RMS coil capacity ** for a cycle frequency higher
than 1 cycle per minute (page 12).
Electrical Connection and Wiring
DC current is necessary for the operation of the brake. The coil
voltage is indicated on the Type tag as well as on the brake body
and is designed according to the DIN IEC 60038 (± 10 % tolerance).
Operation is possible both via alternating voltage in connection
with a rectifier or with another suitable DC supply. Dependent on
the brake equipment, the connection possibilities can vary. Please
follow the exact connections according to the Wiring Diagram. The
manufacturer and the user must observe the applicable directives
and standards (e.g. DIN EN 60204-1 and DIN VDE 0580). Their
observance must be guaranteed and double-checked.
Earthing Connection
The brake is designed for Protection Class I. This protection
covers not only the basic insulation but also the connection of all
conductive parts to the PE conductor on the fixed installation. If the
basic insulation fails, no contact voltage will remain. Please carry
out a standardized inspection of the PE conductor connections to all
contactable metal parts.
Device Fuses
To protect against damage from short circuits, please add suitable
device fuses to the mains cable.
Switching Behaviour
The operational behaviour of a brake is to a large extent dependent
on the switching mode used. Furthermore, the switching times are
influenced by the temperature and the air gap between the armature
disk and the coil carrier (dependent on the wear condition of the
linings).
Switching Times
The values are mean values which refer to the nominal air gap and the nominal torque (100 %) for a warm brake.
For other braking torque adjustments, see Diagram: “Brake separation time t2 dependent on spring configuration“ on page 12.
Switching Times Size
2 4 8 16 32 60 100 150 250 500 1000
Nominal torque (100 %)
M2
[Nm] 2 4 8 16 32 60 100 150 250 500 1000
Connection
time
DC-side switching t1[ms] 10 18 20 30 50 55 68 80 100 100 180
AC-side switching t1 [ms] 100 160 220 320 400 500 640 730 1100 1100 1200
Response delay
on connection
DC-side switching t11 [ms] 6 12 16 25 35 35 38 40 50 30 70
AC-side switching t11 [ms] 80 130 175 240 300 350 400 450 700 700 750
Separation time t2[ms] 28 30 45 70 100 150 180 220 290 400 270 *
Table 6
Diagram 5: Torque-Time
Key:
M1
M2
M4
M6
P
t1
t11
t2
t21
t4
= Switching torque
= Nominal torque (characteristic torque)
= Transmittable torque
= Load torque
= Input power
= Connection time
= Response delay on connection
= Separation time
= Response delay on separation
= Total switch-on time + t11
* Value in operation with overexcitation
ON
OFF
ROBA-stop®-M – Switching Times / Electrical Connection
M
M2
M6
M1
t11
t1
t4
P
t21
t2
M4
0,1 M2
t
t
1111

S1
F1
L
N
1 2 34
5 678
1 2 3456 7 8
20/017.000.2
200 - 500V~
200 - 300V~ R: 0Ω-10MΩ
IN OUT
U– = 0,45×U~
+
–
SDC
ROBA -switch
I = 1,8Amax –
0,05-2sect:
RR
S1
F1
L
N
1 2 34
5 678
1 2 3456 7 8
20/017.000.2
200 - 500V~
200 - 300V~ R: 0Ω-10MΩ
IN OUT
U– = 0,45×U~
+
–
SDC
ROBA -switch
I = 1,8Amax –
0,05-2sect:
RR
0
0 % 20 % 40 % 60 % 80 % 100 % 120 % 140 % 160 %
140 %
120 %
100 %
80 %
60 %
40 %
20 %
0 % 34 %
50 %
125 % 160 %
Electrical Connection
Holding brake
equals 125 %
spring force
for Sizes 2 – 500
Coil
F1: external fuse
Coil
F1: external fuse
** RMS coil capacity PRMS
PRMS ≤Pnom
The coil capacity PRMS must not be larger than Pnom.
Otherwise, the coil may fail due to thermic overload.
Calculations:
PRMS [W] RMS coil capacity, dependent on switching
frequency, overexcitation, power reduction and
switch-on time duration
PRMS =
Pover x tover + Phold x thold
ttot
Pnom [W] Coil nominal capacity (Catalogue values or Type tag)
Pover [W] Coil capacity on overexcitation
Pover = (
Uover )² x Pnom
Unom
Phold [W] Coil capacity on power reduction
Phold = (
Uhold )² x Pnom
Unom
tover [s] Overexcitation time
thold [s] Time of operation with power reduction
toff [s] Time without voltage
ttot [s] Total time (tover + thold + toff)
Uover [V] Overexcitation voltage (bridge voltage)
Uhold [V] Holding voltage (half-wave voltage)
Unom [V] Coil nominal voltage
Time Diagram:
Uover
Unom
Uhold
ttot
ton toff
tover thold
* Overexcitation time tover
Increased wear and therefore an enlarged air gap as well as coil
heat lengthen the separation time t2of the brake. Therefore, as
overexcitation time tover, please select at least double the separation
time t2with nominal power on each brake size.
The spring forces also influence the brake separation time t2: Higher
spring forces increase the separation time t2and lower spring forces
reduce the separation time t2. The separation time t2alterations due
to the spring configuration can be seen in the adjoining diagram.
Spring force (braking torque adjustment) < 100 %:
The overexcitation time tover is less than double the separation time
t2on each brake size.
Example: braking torque adjustment = 34 %
--> separation time t2 = 50 %
--> overexcitation time tover = 200 % x 50 % = 100 % t2
Spring force (braking torque adjustment) = 100 %:
The overexcitation time tover is double the separation time t2on each
brake size.
Spring force (braking torque adjustment) > 100 %:
The overexcitation time tover is higher than double the separation
time t2on each brake size.
Example: braking torque adjustment = 125 %
--> separation time t2 =120 %
--> overexcitation time tover = 200 % x 120 % = 240 % t2
•
•
•
Magnetic Field Removal
AC-side switching
The power circuit is interrupted
before the rectifier. The magnetic
field slowly reduces. This delays
the rise in braking torque.
When switching times are not
important, please switch AC-side,
as no protective measures are
necessary for coil and switching
contacts.
AC-side switching means low-noise switching; however, the brake
engagement time is longer (c. 6 – 10 times longer than with DC-side
switch-off). Use for non-critical braking times.
DC-side switching
The power circuit is interrupted
between the rectifier and the coil as
well as mains-side. The magnetic
field is removed very quickly,
resulting in a rapid rise in braking
torque.
When switching DC-side, high
voltage peaks are produced in
the coil, which lead to wear on
the contacts from sparks and to
destruction of the insulation.
DC-side switching means short brake engagement times (e.g. for
EMERGENCY STOP operation). However, this produces louder
switching noises.
Protective Circuit
When using DC-side switching, the coil must be protected by
a suitable protective circuit according to VDE 0580, which is
integrated in mayr®rectifiers. To protect the switching contact from
consumption when using DC-side switching, additional protective
measures may be necessary (e.g. series connection of switching
contacts). The switching contacts used should have a minimum
contact opening of 3 mm and should be suitable for inductive load
switching. Please make sure on selection that the rated voltage
and the rated operation current are sufficient. Depending on the
application, the switching contact can also be protected by other
protective circuits (e.g. mayr®spark quenching units), although this
may of course then alter the switching times.
•
•
•
Holding brake
equals 160 %
spring force
for Size 1000
Diagram: Brake separation time t
2
dependent on spring configuration
Spring force (braking torque adjustment in %)
Separation time t2
(in %)
1212

Supply module Protective
Circuit
no overexcitation
and
no power reduction
overexcitation (short separation time)
and / or
power reduction (reduction in coil capacity and temperature)
variable
output
voltage
fixed
output
voltage
without
DC-side
disconnection
integrated
DC-side
disconnection
Type
024.000.6
Type
025.000.6
Type
017._00.2
Type
017.110.2
Type
018.100.2
Type
019.100.2
Type
070.000.6
Half-wave
Rectifier
Bridge
Rectifier
ROBA®-switch ROBA®-switch ROBA®-switch
24V
ROBA®-
multiswitch
Spark
Quenching Unit
APPLICATION
Standard
application
Standard
application,
preferred for
noise-damped
brakes
Allows short separation time
or reduction in coil capacity and temperature
Reductions
in switch-off
voltage and
wear on
contacts
+
short
connection time
+
short
connection time
(for
input
voltage
24 VDC)
+
consistently
controlled
output
voltage
with variable
input
voltage
compact
design
compact
design
no wear on
contacts
no wear on
contacts
U over
207 VDC (Overexcitation voltage) U over 360 VDC (Overexcitation voltage)
Type
017._00.2
Type
017._00.2
ROBA®-switch ROBA®-switch
U nom
104 VDC (Coil nominal voltage) U nom 207 VDC (Coil nominal voltage)
U hold 180 VDC (Holding voltage)
0 0
t t
Example 1
Available: network voltage 230 VAC
Wanted: short separation time (overexcitation)
Required: supply module / coil nominal voltage
Solution:
Supply modules available for selection: Type 017._00.2
(in Example below), Type 017.110.2 or Type 019.100.2
Coil nominal voltage: 104 VDC
•
•
Example 2
Available: network voltage 400 VAC
Wanted: short separation time (overexcitation) and
and low coil temperature (power reduction)
Required: supply module / coil nominal voltage
Solution:
Supply modules available for selection: Type 017._00.2 (in
Example below), Type 017.110.2 or Type 019.100.2
Coil nominal voltage: 207 VDC
•
•
Overview/Assortment Electrical Accessories
1313

A
C
E
ØD
19
5
B
Application
Rectifiers are used to connect DC units to alternating voltage
supplies, for example electromagnetic brakes and clutches
(ROBA-stop®, ROBA-quick®, ROBATIC®), electromagnets,
electrovalves, contactors, switch-on safe DC motors, etc.
Function
The AC input voltage (VAC) is rectified (VDC) in order to operate DC
voltage units. Also, voltage peaks, which occur when switching off
inductive loads and which may cause damage to insulation and
contacts, are limited and the contact load reduced.
Electrical Connection (Terminals)
1 + 2 Input voltage
3 + 4 Connection for an external switch for DC-side switching
5 + 6 Coil
7 - 10 Free nc terminals (only for size 2)
Dimensions (mm)
Order Number
__ / 0 2 __ . 0 0 0 . 6
Size
1
up to
4
4
5
Half-wave rectifier
Bridge rectifier
Size A B C ØD E
1 34 30 25 3,5 4,5
2 54 30 44 4,5 5,0
3/4 64 30 54 4,5 5,0
Technical Data Bridge rectifier Half-wave rectifier
Calculation output voltage VDC = VAC x 0,9 VDC = VAC x 0,45
Type 1/025 2/025 1/024 2/024 3/024 4/024
Max. input voltage 230 VAC 230 VAC 400 VAC 400 VAC 500 VAC 600 VAC
Max. output voltage 207 VDC 207 VDC 180 VDC 180 VDC 225 VDC 270 VDC
Output current at ≤ 50°C 2,5 A 2,5 A 3,0 A 4,0 A 4,0 A 4,0 A
Output current at max. 85 °C 1,7 A 1,7 A 1,8 A 2,4 A 2,4 A 2,4 A
Max. coil capacity at 115 VAC ≤ 50 °C 260 W 260 W - - - -
Max. coil capacity at 115 VAC up to 85 °C 177 W 177 W - - - -
Max. coil capacity at 230 VAC ≤ 50 °C 517 W 517 W 312 W 416 W 416 W 416 W
Max. coil capacity at 230 VAC up to 85 °C 352 W 352 W 187 W 250 W 250 W 250 W
Max. coil capacity at 400 VAC ≤ 50 °C - - 540 W 720 W 720 W 720 W
Max. coil capacity at 400 VAC up to 85 °C - - 324 W 432 W 432 W 432 W
Max. coil capacity at 500 VAC ≤ 50 °C - - - - 900 W 900 W
Max. coil capacity at 500 VAC up to 85 °C - - - - 540 W 540 W
Max. coil capacity at 600 VAC ≤ 50 °C - - - - - 1080 W
Max. coil capacity at 600 VAC up to 85 °C - - - - - 648 W
Peak reverse voltage 1600 V 1600 V 2000 V 1600 V 2000 V 2000 V
Rated insulation voltage 250 VRMS 320 VRMS 500 VRMS 500 VRMS 630 VRMS 630 VRMS
Pollution degree (insulation coordination) 2 2 2 1 2 2
Protection fuse To be included in the input voltage line.
Recommended microfuse switching capacity H
The microfuse corresponds to the max. possible connection
capacity. If fuses are used according to the actual capacities,
please observe the permitted limit integral I²t on selection.
FF 3,15A FF 3,15A FF 4A FF 5A FF 5A FF 5A
Permitted limit integral l2t 40 A2s 40 A2s 50 A2s 100 A2s 50 A2s 50 A2s
Protection IP65 components, encapsulated / IP20 terminals
Terminals Cross-section 0,14 - 1,5 mm2(AWG 26-14)
Ambient temperature - 25 °C up to + 85 °C
Storage temperature - 25 °C up to + 105 °C
Conformity markings UL, CE UL, CE UL, CE UL, CE UL, CE CE
Installation conditions The installation position can be user-defined. Please ensure sufficient heat dissipation
and air convection! Do not install near to sources of intense heat!
Half-wave Rectifiers and Bridge Rectifiers Type 02_.000.6
Accessories: Mounting bracket set for 35 mm rail acc. to
EN 50022: Article-No. 1803201
1414

17,5
54
5
5,6
9
30
48,6
1513
64
Ø4,5
54
4,5
17,5
54
5
5,6
9
30
73,6
1520
64
69
Ø4,5
54
4,5
ROBA®-switch Type 017._00.2
bis 300 V
Application
ROBA®-switch fast acting rectifiers are used to connect DC con-
sumers to alternating voltage supplies, for example electromagnetic
brakes and couplings (ROBA-stop®, ROBA®-quick, ROBATIC®) as
well as electromagnets and electrovalves etc.
Fast acting rectifier ROBA®-switch 017._00.2
• Consumer operation with overexcitation or power reduction
• Input voltage: 100 - 500 VAC
• Maximum output current IRMS: 3 A at 250 VAC
• UL-approved
Function
The ROBA®-switch units are used for operation at an input
voltage of between 100 and 500 VAC, dependent on size. They can
switch internally from bridge rectification output voltage to half-
wave rectification output voltage. The bridge rectification time can
be modified from 0,05 to 2 seconds by exchanging the external
resistor (Rext).
Electrical Connection (Terminals)
1 + 2 Input voltage (fitted protective varistor)
3 + 4 Connection for external contact for DC-side switch-off
5 + 6 Output voltage (fitted protective varistor)
7 + 8 Rext for bridge rectifier timing adjustment
Technical Data
Input voltage see Table 1
Output voltage see Table 1
Protection IP65 components, IP20 terminals,
IP10 Rext
Terminal nom. cross-section 1,5 mm2, (AWG 22-14)
Ambient temperature -25 °C up to +70 °C
Storage temperature -40 °C up to +105 °C
ROBA®-switch Sizes, Table 1
Dimensions (mm)
Type 017.000.2
Size
Type 017.000.2 Type 017.100.2
10 20 10 20
Input voltage
VAC ± 10 % 100 - 250 200 - 500 100 - 250 200 - 500
Output voltage
VDC, Ubridge
90 - 225 180 - 450 90 - 225 180 - 450
Output voltage
VDC, Uhalf-wave
45 - 113 90 - 225 45 - 113 90 - 225
Output current IRMS
at ≤ 45 °C, (A) 2,0 1,8 3,0 2,0
Output current IRMS
at max. 70 °C, (A) 1,0 0,9 1,5 1,0
Comformity
markings
Order Number
__ / 0 1 7 . __ 0 0 . 2
Size
10
20
0
1
UL-approved
to 300 V
to 500 V
Accessories:
Mounting bracket set for
35 mm rail acc. to EN 50022:
Article-No. 1802911
Type 017.100.2
Accessories:
Mounting bracket set for
35 mm rail acc. to EN 50022:
Article-No. 1802911
up to 300 V
1515

17,5
54
5
5,6
9
30
73,6
1520
64
69
Ø4,5
54
4,5
ROBA®-switch Type 017.110.2
Application
ROBA®-switch fast acting rectifier units are used to connect DC
units to alternating voltage supplies, for example electromagnetic
brakes and clutches (ROBA-stop®, ROBA®-quick, ROBATIC®),
electromagnets, electrovalves, etc.
Fast acting rectifier ROBA®-switch 017.110.2
Consumer operation with overexcitation or power reduction
• Integrated automatic DC-side disconnection
(shorter connection time)
• Input voltage: 100 - 500 VAC
• Max. output current IRMS: 1,5 A
• UL-approved
The ROBA®-switch units with integrated automatic
DC-side disconnection are not suitable for use as safety
disconnections!
Function
The ROBA®-switch units are used for operation at an input
voltage of between 100 and 500 VAC, depending on the size. They
can switch automatically internally from bridge rectification out-
put voltage to half-wave rectification output voltage. The bridge
rectification time can be modified from 0,05 to 2 seconds by
exchanging the external resistor (Rext).
The ROBA®-switch units also have an integrated automatic DC-
side disconnection. In contrast to the conventional DC-side
disconnection, no further protective measures or external
components are necessary. The DC-side disconnection is stand-
ard-activated (terminals 3 and 4 are not wired), resulting in short
electromagnetic consumer switching times.
The integrated automatic DC-side disconnection is deactivated
by fitting a bridge between the terminals 3 and 4. The coil is
deenergised via the free wheeling diode. This has the advantages of
softer braking and a lower switching noise. However, the switching
times increase (taking approx. 6 - 10 times longer).
Electrical Connection (Terminals)
1 + 2 Input voltage (fitted protective varistor)
3 + 4 Switching between DC- and AC-side disconnection
5 + 6 Output voltage (fitted protective varistor)
7 + 8 Rext for bridge rectifier timing adjustment
Technical Data
Input voltage see Table 1
Output voltage see Table 1
Protection IP65 components, IP20 terminals
IP10 Rext
Terminal nom. cross-section 1,5 mm2, (AWG 22-14)
Ambient temperature -25 °C up to +70 °C
Storage temperature -40 °C up to +105 °C
•
Dimensions (mm)
ROBA®-switch Sizes, Table 1
Size
10 20
Input voltage
VAC ± 10 %
100..
..250
200..
..500
Output voltage
VDC, Ubridge
90..
..225
180..
..450
Output voltage
VDC, Uhalf-wave
45..
..113
90..
..225
Output current IRMS
at ≤ 45 °C, (A) 1,5 1,5
Output current IRMS
at max. 70 °C, (A) 0,75 0,75
Conformity
markings
Order Number
__ / 0 1 7 . 1 1 0 . 2
Size
10
20
Accessories:
Mounting bracket set for
35 mm rail acc. to EN 50022:
Article-No. 1802911
1616

ON
1 2 3 4
17,5
54
5
5,6
9
30
73,6
15
64
69
Ø4,5
54
4,5
ROBA®-multiswitch Type 019.100.2
Application
ROBA®-multiswitch fast acting rectifiers are used to connect DC
units to alternating voltage supplies, for example electromagnetic
brakes and clutches (ROBA-stop®, ROBA®-quick, ROBATIC®),
electromagnets, electrovalves etc.
Fast acting rectifier ROBA®-multiswitch 019.100.2
Consistently controlled output voltage in the entire input voltage
range.
• Consumer operation with overexcitation or power reduction
• Input voltage: 100 - 500 VAC
• Max. output current: 2 A
ROBA®-multiswitch units are not suitable for all
applications, e.g. use of the ROBA®-multiswitch when
operating noise-damped brakes is not possible without
taking additional measures. The product’s suitability
should be checked before use.
Function
The ROBA®-multiswitch units are (dependent on size) used for an
input voltage of between 100 and 500. After switch-on, they emit
the rectified bridge voltage for 50 ms and then control the 90 or
180 VDC overexcitation voltages. After the overexcitation period,
they control the 52 or 104 VDC holding voltages. The overexcitation
period can be adjusted via a DIP-switch to 150 ms, 450 ms, 1 s,
1,5 s and 2 s.
Electrical Connection (Terminals)
1 + 2 Input voltage (fitted protective varistor)
3 + 4 Connection for external contact for DC-side switch-off
5 + 6 Output voltage (fitted protective varistor)
Technical Data
Input voltage see Table 1
Output voltage see Table 1
Protection IP65 components, IP20 terminals
Terminal nom. cross-section 1,5 mm2, (AWG 22-14)
Ambient temperature -25 °C up to +70 °C
Storage temperature -40 °C up to +105 °C
•
Dimensions (mm)
ROBA®-multiswitch Sizes, Table 1
Order Number
__ / 0 1 9 . 1 0 0 . 2
Size
10
20
Accessories:
Mounting bracket set for
35 mm rail acc. to EN 50022:
Article-No. 1802911
Size
10 20
Input voltage
VAC ± 10 % acc. to EN 50160 100 - 275 200 - 500
Frequency input voltage
Hz 50 - 60 50 - 60
Output voltage Uover
VDC ± 10 % 90 180
Output voltage Uhold
VDC ± 10 % 52 104
Output current IRMS at ≤ 45 °C
ADC 2,0 2,0
Output current IRMS at max. 70 °C
ADC 1,0 1,0
Conformity
markings
1717

34
25
4,5
Ø3,5
19
5
30
Application
Reduces spark production on the switching contacts occurring
during VDC inductive load switching.
• Voltage limitation according to VDE0580 2000-07, Item 4.6.
• Reduction of EMC-disturbance by voltage rise limitation,
suppression of switching sparks.
• Reduction of brake engagement times by a factor of 2-4
compared to free-wheeling diodes.
Function
The spark quenching unit will absorb voltage peaks resulting from
inductive load switching, which can cause damage to insulation
and contacts. It limits these to 70V and reduces the contact load.
Switching products with a contact opening distance of > 3 mm are
suitable for this purpose.
Electrical Connection (Terminals)
1 (+) Input voltage
2 (–) Input voltage
3 (–) Coil
4 (+) Coil
5 Free nc terminal
6 Free nc terminal
Technical Data
Input voltage max. 300 VDC, max. 615 Vpeak
(rectified voltage 400 VAC,
50/60 Hz)
Switch-off energy max. 9J/2 ms
Power dissipation max. 0,1 Watt
Max. voltage nc terminals 250 V
Protection IP65 / IP20 terminals
Ambient temperature -25 °C up to +85 °C
Storage temperature -25 °C up to +105 °C
Max. conductor connection
diameter 2,5 mm2/ AWG 26-12
Max. terminal tightening torque 0,5 Nm
Accessories
Mounting bracket set for 35 mm rail acc. to EN50022
Article-No. 1803201
Dimensions (mm)
Order Number
__ / 0 7 0 . 0 0 0 . 6
Size
1
Spark Quenching Unit Type 070.000.6
1818

Guidelines
Declaration of Conformity
A conformity evaluation for the applicable EU directives has been carried out for this product. The conformity evaluation is set out in writing
in a separate document and can be requested if required. It is forbidden to start use of the product until the machine or system into which
it should be built is operating in accordance with all applicable EU directives.
Without a conformity evaluation, this product is not suitable for use in areas where there is a high danger of explosion. This statement is
based on the ATEX directive.
Guidelines for Electromagnetic Compatibility (EMC)
In accordance with the EMC directives 89/336/EEC, the
individual components produce no emissions. However,
functional components e.g. rectifiers, phase demodulators,
ROBA®-switch devices or similar controls for mains-side
energisation of the brakes can produce disturbance which lies
above the allowed limit values. For this reason it is important to
read the Installation and Operational Instructions very carefully
and to keep to the EMC directives.
Device Conditions
The catalogue values are standards which can, in certain cases,
vary. When dimensioning the brakes, please remember that
installation situations, braking torque fluctuations, permitted
friction work, run-in behaviour and wear as well as general
ambient conditions can all affect the given values. These factors
should therefore be carefully assessed, and alignments made
accordingly.
Please Observe!
Mounting dimensions and connecting dimensions must be
adjusted according to the size of the brake at the place of
installation.
The brakes are designed for a relative duty cycle of 100 %.
The brakes are only designed for dry running. The braking
torque is lost if the friction surfaces come into contact with oil,
grease, water or similar substances.
The braking torque is dependent on the present run-in
condition of the brakes.
Manufacturer-side corrosion protection of the metallic
surface is provided.
Without a conformity inspection, this product is not suitable
for use in areas where there is a high danger of explosion.
This statement is based on the directive 94/9/EC (ATEX
directive). Please contact the manufacturer separately for
brakes in ATEX-design!
•
•
•
•
•
•
Protection Class I
This protection can only be guaranteed if the basic insulation
is intact and if all conductive parts are connected to the PE
conductor. Should the basic insulation fail, the contact voltage
cannot function (VDE 0580).
Protection (mechanical) IP54
When installed, protected against dust, contact and splashing
water from all directions (dependent on customer-side
mounting arrangements).
Protection (electrical) IP54
Dust-proof and protected against contact as well as against
splashing water from all directions.
Protection IP65 (Type 891._ _ _.1)
Dust-proof and protected against contact as well as against jet
water from all directions.
Ambient Temperature -20 °C up to +40 °C
At temperatures of around or under freezing point, condensation
can strongly reduce the torque, or the rotors can freeze up. The
user is responsible for taking appropriate countermeasures.
Insulation Material Class F (+155 °C)
The magnetic coil and the casting compound are suitable for
use up to a max. operating temperature of +155 °C.
1919

Representatives
More representatives:
Austria, Benelux States, Brazil, Canada, Czech Republic, Denmark, Finland, Greece, Hongkong,
Hungary, Indonesia, Israel, Malaysia, New Zealand, Norway, Philippines, Poland, Romania, Russia,
Slovakia, Slovenia, Spain, Sweden, Thailand, Turkey
You can find the complete address for the representative responsible for your area under
www.mayr.de in the internet.
Headquarters
Chr. Mayr GmbH + Co. KG
Eichenstrasse 1, D-87665 Mauerstetten
Tel.: [phone], Fax: [phone]
www.mayr.de, eMail: [e-mail]
Branch office
Service Germany
Baden-Württemberg
Jochen Maurer
Mittlere Holdergasse 5
71672 Marbach
Tel.: [phone]+35
Fax: [phone]
Bavaria
Manfred Schwarz
Eichenstrasse 1
87665 Mauerstetten
Tel.: [phone]
Fax: [phone]
Franken
Jochen Held
Unterer Markt 9
91217 Hersbruck
Tel.: [phone]
Fax: [phone]
Hagen
Detlef Bracht
Im Langenstück 6
58093 Hagen
Tel.: [phone]
Fax: [phone]
Kamen
Thomas Kant
Lünener Strasse 211
59174 Kamen
Tel.: [phone]
Fax: [phone]
North
Bernd Massmann
Schiefer Brink 8
32699 Extertal
Tel.: [phone]
Fax: [phone]
Rhine-Main
Wolfgang Rattay
Jägerstrasse 4
64739 Höchst
Tel.: [phone]
Fax: [phone]
China
Mayr Zhangjiagang
Power Transmission Co., Ltd.
Changxing Road No. 16,
215600 Zhangjiagang
Tel.: [phone]
Fax: [phone]
[e-mail]
Great Britain
Mayr Transmissions Ltd.
Valley Road, Business Park
Keighley, BD21 4LZ
West Yorkshire
Tel.: [phone]
Fax: [phone]
[e-mail]
France
Mayr France S.A.
Z.A.L. du Minopole
BP 16
62160 Bully-Les-Mines
Tel.: [phone]
Fax: [phone]
[e-mail]
Italy
Mayr Italia S.r.l.
Viale Veneto, 3
35020 Saonara (PD)
Tel.: [phone]
Fax: [phone]
[e-mail]
Singapore
Mayr Transmission (S) PTE Ltd.
No. 8 Boon Lay Way Unit 03-06,
TradeHub 21
Singapore 609964
Tel.: [phone]
Fax: [phone]
[e-mail]
Switzerland
Mayr Kupplungen AG
Tobeläckerstrasse 11
8212 Neuhausen am Rheinfall
Tel.: [phone]
Fax: [phone]
[e-mail]
USA
Mayr Corporation
4 North Street
Waldwick
NJ 07463
Tel.: [phone]
Fax: [phone]
[email protected]
Australia
Transmission Australia Pty. Ltd.
22 Corporate Ave,
3178 Rowville, Victoria
Australien
Tel.: [phone]
Fax: [phone]
[email protected]
China
Mayr Shanghai
Representative Office
Room 506, No. 1007,
Zhongshan South No. 2 Road
200030 Shanghai, VR China
Tel.: [phone]
Fax: [phone]
[e-mail]
India
National Engineering
Company (NENCO)
J-225, M.I.D.C.
Bhosari Pune 411026
Tel.: [phone]
Fax: [phone]
[email protected]
Japan
Sumitomo Heavy Industries
PTC Sales Co., Ltd. (SJS)
Think Park Tower 2-1-1 Ohsaki
Shinagawa-ku
Tokyo 141-6025
Tel.: [phone]
Fax: [phone]
[email protected]
South Africa
Torque Transfer
Private Bag 9
Elandsfonstein 1406
Tel.: [phone]
Fax: [phone]
[email protected]
South Korea
Mayr Korea Co. Ltd.
no. 302, 3rd floor, Kyoungnam
Taxi Mutual Aid Association Hall,
209-3, Myoung-Seo Dong,
Changwon, Korea
Tel.: [phone]
Fax: [phone]
[email protected]
Taiwan
German Tech Auto Co., Ltd.
No. 162, Hsin sheng Road,
Taishan Hsiang,
Taipei County 243, Taiwan R.O.C.
Tel.: [phone]
Fax: [phone]
[email protected]
Machine tools
Applications in China
DTC. Co.Ltd.,
Block 5th, No. 1699,
East Zhulu Road,
201700 Shanghai, China
Tel.: [phone]
Fax: [phone]
[email protected]
your reliable partner
27/10/2008 SC