Mayr ROBA-stop-Z Instructions De Montage Et De Mise En Service page 18

Installation and Operating Instruction for ROBA-stop -Z
Dual Circuit Fail Safe Brake Type 892.10_.0
Sizes 60 – 2000
Release monitoring (11) Fig. 6
ROBA-stop -Z dual circuit fail safe brakes are supplied with adjusted
release monitoring (adjustment acc. to type).
If the brake is used as part of the protective device for the
ascending elevator cage against an overspeed (inspected
design ABV 547) or as brake for theatre and stage applications,
an evaluation of the PTC-sensor in the elevator range must be
made by the customer.
A micro switch (11.1) gives signal: "brake opened or brake closed" for
every change of the brake condition.
An evaluation of the signal of both conditions must be made by
the customer.
Wiring diagram:
connection black
Function
When the magnetic coil is energised (2.1) in the brake body (2) the
armature disc (13) is attracted to the brake body (2), a micro switch
(11.1) gives signal, the brake is released.
Note:
When the hand release (18) is actuated a switch signal of the release
monitoring system (11) is not guaranteed.
Assembly (at the factory Fig. 6)
Attention:
Brake attached at the assembly device or mounting face-brake,
mounting position horizontally, fastened with nominal tightening
torque and de-energised.
1. Put LOCTITE 243 on hexagon head cap screw (11.2) 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 (11.3) with spring washer (11.4).
3. Screw micro switch (11.1) with cap screws (11.7) to the adapter
plate (11.6) (M= 0,2Nm). Put UHU endfest 300 between micro
switch and adapter plate.
(Secure cap screws with UHU endfest 300)
4. Screw adapter plate (11.6) with two cap screws (11.5)
(M4x8 – DIN912) to the brake body (2) on the side of the release
monitoring (Fig. 6) (lock it with LOCTITE 243).
5. Screw brake at the machine wall (12) or assembly device with
nominal tightening torque.
Adjustment and inspection of the micro switch
((pos. 11.1) Fig. 6 at the factory):
Attention!! Brake must not be connected to supply voltage.
1. Connect inspection lamp or measuring unit (diode inspection) at
the micro switch (11.1) (make contact = blue and black).
2. Turn hexagon head cap screw (11.2) in direction of the micro
switch (11.1) until contact of the micro switch tappet.
3. Tighten hexagon nut (11.3) so far that the hexagon head cap
screw (11.2) is put under pretension of the spring washer (11.4).
4. Push feeler gauge (loose feeler sheet) dimension "c" (Table 4)
between switch tappet and hexagon head cap screw (11.2).
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 8 of 10
5. Turn hexagon head cap screw (11.2) in direction of the micro
switch (11.1), until signal "ON", turn it back until signal "OFF".
Lock hexagon head cap screw (11.2) with hexagon nut (11.3).
6. Cycle 2x; if necessary re-adjust it according to item 5.
energised
de-energised ⇒ ⇒ ⇒ ⇒ signal "OFF",
7. Add additional feeler gauge (loose feeler sheet) 0,1mm to the
dimension "c" => cycle 1 x,
de-energised ⇒ ⇒ ⇒ ⇒ signal "ON".
Remove feeler gauge.
8. Put feeler gauge dimension "d" between brake body (2) and
armature disc (13) in the range of the micro switch.
energised
de-energised ⇒ ⇒ ⇒ ⇒ signal „OFF" ,
Table 4
Size
Z60
Z125
Z250
Z500
Z1000
Z2000
11.1 11.2 11.3
3 leads: length 500mm
grey = break contact 11.5
blue = m ake contact
black = input
Table 5: Maximum switch capacity
Micro switch (11.1)
AC switch capacity
Voltage Resistance load
[VAC] [A/R
125
250
-
Minimum switch capacity: 0,12VA ( > 12V, > 10mA)
Contact material: silver
info@mayr.de
(B.8.2.0.GB)
⇒ ⇒ ⇒ ⇒ signal "ON",
⇒ ⇒ ⇒ ⇒ signal „ON" ,
Dimension
feeler gauge [mm]
c
0,15
0,2
0,2 0,25
0,25
0,3
0,3
11.4 11.7 2 13
Mark hex. head cap screw (11.2)
hexagon nut (11.3)
and cap screws (11.5)
11.6
with securing lacquer.
Fig. 6 (Sizes 60 –2000)
DC switch capacity
Voltage Resistance load
] [VAC]
load
5 up to 30
5 125
- 250
15/05/2003 TK/Kr
d
0,2
0,2
0,3
0,4
0,4
[A/R ]
load
5
0,5
0,25