Wiring Diagram - Mayr ROBA-stop-Z Instructions De Montage Et De Mise En Service

Installation and Operating Instruction for ROBA-stop -Z
Dual Circuit Fail Safe Brake Type 892.10_.0
Sizes 60 – 2000
Wear monitoring (19)
Figs. 7 and 8
ROBA-stop -Z dual circuit fail safe brakes (depending on type) are
supplied with factory adjusted wear monitoring.
A wear monitoring is recommended with reduced braking
torques and/or and operation with fast acting rectifiers
(overexcitation) due to the increased drawing behaviour of the
brake.
Function
The air gap "a" between brake body (2) and armature disc (13) is
increased due the wear of the rotors (5 and 6).
If the limiting air gap (acc. to Table 2 is achieved the contact of the
micro switch (19.1) switches over and gives signal.
The rotors (5 and 6) must be exchanged.
The customer must evaluate the signal.

Wiring diagram:

connection black
Before exchange of the rotors (pos. 5+6)
•
Clean brake, remove abrasive dust with the aid of air pressure.
•
Check rotor thickness "new" (acc. to Table 3).
Exchange of the rotors (pos. 5+6)
The exchange of the rotors is made in the opposite sequence of the
brake assembly.
Attention!
In case of hoisting drives the drive-brake
must be free of load.
Otherwise there is the risk of the load falling!!
Assembly (at the factory Figs. 7 and 8)
Attention! Brake must not be connected to supply voltage
Sizes 60 - 125
1. Put LOCTITE 243 on hexagon head cap screw (19.2) at the
beginning of the thread and screw it into the armature disc (13)
until contact of the screw head. Head of screw shows in direction
of the brake body (2).
2. Locate hexagon nut (19.3) with spring washer (19.4).
3. Screw micro switch (19.1) with cap screws (19.7) to the adapter
plate (19.6) (M= 0,2Nm). Put UHU endfest 300 between micro
switch and adapter plate.
(Secure cap screws with UHU endfest 300)
4. Screw adapter plate (19.6) with two cap screws (19.5)
(M4x8 – DIN912) to the brake body (2) on the side of the release
monitoring (Fig. 7) (lock it with LOCTITE 243).
5. Screw brake to the machine wall (12) or assembly device with
nominal tightening torque, put measuring strip "Z" between all
distance sleeves (7) and machine wall (12) or assembly
device according to Table 8.
Sizes 250 – 2000:
1. Screw hexagon head cap screw (19.2) into the armature disc (13)
until contact of the screw head.
(head of screws shows in direction of the brake body (2)).
2. Slightly locate hexagon nut (19.3).
3. Screw micro switch (19.1) using cap screws (19.5) to the brake
body (2) at the wear monitoring side (Fig. 8) (secure cap screws
(19.5) with LOCTITE 243).
4. Screw brake to the machine wall (12) or assembly device with
nominal tightening torque, put measuring strip "Z" between all
distance sleeves (7) and machine wall (12) or assembly
device according to Table 8.
Chr. Mayr GmbH + Co. KG
Eichenstraße 1
D-87665 Mauerstetten
Germany
break contact
2
connection grey
1
input
4
make contact
connection blue
Telephone 08341/804-241+242
Telefax 08341/804-422
http://www.mayr.de
E-Mail:
Page 9 of 10
Adjustment and inspection of the micro switch
((pos. 19.1) Figs. 7 and 8 at the factory):
Attention!! Brake must not be connected to supply voltage
1. Connect signal lamp or inspection unit (adjustment diode
inspection at the micro switch (pos. 19.1).
(Break contact: leads grey and black)
2. Turn hexagon head cap screw (pos. 19.2) in direction of the
micro switch (pos. 19.1) until this switches.
3. Turn hexagon head cap screw (pos. 19.2) back again until
contact of the micro switch (pos. 19.1) switches over again.
4. Lock hexagon head cap screw (pos. 19.2) by the aid of the
hexagon nut (pos. 19.3) (secure it with LOCTITE 243).
Operational check
with feeler gauge (Figs. 7 and 8) at the factory:
1. Push feeler gauge dim. = 0,1mm between switch tappet and
hexagon head cap screw (Pos.19.2)
(observe straight position of the switch tappet).
Signal lamp must signal "OFF".
2. Release brake, remove measuring stripe.
3. Brake can be assembled with wear monitoring system.
4. Attach indication label wear monitoring system.
19.1 19.2 19.3 19.4 19.7 2 13
3 leads: length 500mm
grey = break contact
blue = m ake contact
black = input
Figure 7 (Sizes 60 – 125)
19.1 19.2 19.4 19.3 19.5 2 13
3 leads: length 500mm
grey = break contact
blue = m ake contact
black = input
Figure 8 (Sizes 250 – 2000)
info@mayr.de
(B.8.2.0.GB)
19.5
19.6
Mark hexagon head cap screw (19.2),
hexagon nut (19.3)
and cap screws (19.5)
with securing lacquer
Mark hexagon head cap screw (19.2),
hexagon nut (19.3)
and cap screws (19.5)
with securing lacquer
15/05/2003 TK/Kr