Mayr ROBA-stop-Z Instructions De Montage Et De Mise En Service page 17

Installation and Operating Instruction for ROBA-stop
Dual Circuit Fail Safe Brake Type 892.10_.0
Sizes 60 – 2000
Brake inspection (Figs. 1-3)
(Before initial start of the brake).
Inspection of the complete air gap (nominal air gap "a")
¢
braked
(several times at the brake circumference) acc. to Table 2
Inspection of air gap, single circuit ("b" released)
¢
brake circuit 1 internal and brake circuit 2 external (several times
at the brake circumference) according to Table 2.
Inspection of the hand release function
¢
By deflection of the hand release (18) via a manual force linings
are unloaded. The brake is free up to a residual torque of
approx. max. 5 %.
Indication:
When the hand release is actuated a switch signal of the
release monitoring system is not guaranteed.
Brake inspection (dual circuit braking function)
®
The ROBA-stop -Z dual circuit fail safe brake has a double safe
(redundant) brake system.
If one brake circuit fails 50% of the braking torque, however,
maintains.
The single brake circuit is inspected by means of an included
reference gauge (10).
Attention!
Should the elevator move after tilting the
reference gauges (10) or not decelerate
sensibly during the braking process,
immediately reverse rotate the reference
gauges and remove it.
The dual circuit braking function is not guaranteed.
Stop elevator. Disassemble brake and check it.
Take reference gauges (attached to motor or gear box
¢
respectively).
Inspection: reference gauges are marked
Size of gauge must correspond with brake size.
(Exception: brake size 2000 = reference gauge size 1000)
Inspection brake circuit I (mounting side Fig. 2):
¢
a.) Push both reference gauges, displaced 180 to each other,
with the flattened surfaces between brake body (2) and
mounting area (12). Rotate reference gauges 90 and hold in
this position (no spring force on rotor 1 (5)).
b.) Release emergency braking (with max. load and max.
speed) and check stopping distance acc. to specifications for
passenger lifts.
c.) Turn reference gauges to the flattened surface and remove
from the brake.
Table 3:
Size
M "X"
[Nm] [mm]
35 2,2
60
70 1
125
140 1,5
250
270 6,7
500
1000 550 13,4
2000 1190 16
Chr. Mayr GmbH + Co. KG
Eichenstraße 1
D-87665 Mauerstetten
Germany
Braking torque adjustment "M" [Nm] and dimension "X" [mm]
Type 892.10_.0
M "X" M "X"
[Nm] [mm] [Nm] [mm]
40 3,3 50 5,1
85 2,2 100 3,5
170 3,0 200 4,5
325 8,6 385 10,6
700 16,1 800 17,8
1425 18,5 1665 21,5
Telephone 08341/804-241+242
Telefax 08341/804-422
http://www.mayr.de
E-Mail:
Page 7 of 10
Inspection brake circuit II (brake flange side Fig. 2):
¢
a.) Push both reference gauges, displaced 180 to each other,
with the flattened surface between armature disc (13) and
braking plate (16). Rotate reference gauge by 90 and hold in
this position (no spring force on rotor 2 (6)).
b.) Release emergency braking (with max. load and max.
speed) and check stopping distance acc. to specifications for
passenger lifts.
c.) Turn reference gauge to the flattened surface and remove
from the brake.
Attach references gauges to the motor or gear box again
Braking torque adjustment
(Fig. 5 and Table 2)
®
ROBA-stop -Z dual circuit fail safe brakes are adjusted to the
nominal torque or braking torque requested in the order at the factory.
The braking torque can be reduced continuously up to 50 % via two
cap screws (14) (size 2000: 4 pcs.) together with the hexagon nuts
(15) by the aid of the dimension "X" (Fig. 5 and Table 3). It has to be
observed that both screws are adjusted uniformly and the hexagon
nuts are locked again.
8
M "X" M
[Nm] [mm] [Nm]
60 7,0 65
115 4,7 130
230 6,0 260
440 12,5 500
900 19,6 1000
1885 24,5 2125
info@mayr.de
®
-Z
(B.8.2.0.GB)
X
14 15
"X" M "X"
[mm] [Nm] [mm]
7,9 70 8,7
5,9 140 6,5
7,5 280 8,5
14,6 540 16,0
21,4 1100 23,5
27,5 2380 30,5
15/05/2003 TK/Kr
Fig. 5
Rotor
thickness
"new"
(mm)
9,4
-0,05
10,5
-0,05
12,5
-0,05
15,45
-0,05
18,5
-0,05
18,5
-0,05