TKE TW45 - Page 86

Installation and Operational Instructions for
ROBA-stop
®
-Z Type 892.101.0
Size 125 (E073 01 046 000 4 EN)
18/05/2022 TK/HW/SU Chr. Mayr GmbH + Co. KG
Eichenstraße 1, D-87665 Mauerstetten, Germany
Phone: +49 8341 804-0, Fax: +49 8341 804-421
Page 8 of 16 www.mayr.com, E-Mail: public.mayr@mayr.de
Table 1: Technical Data
Article number
8227821
8253118
8292346
Nominal voltage
90 V
90 V
55 V
Overexcitation voltage
180 V
180 V
110 V
Coil power (nominal power at 20°C)
76 W
76 W
71 W
Coil power on overexcitation
303 W
303 W
284 W
Overexcitation time span
1 s
Nominal braking torque (+60 %)
100 (2 x 50) Nm
Rotor thickness, new condition
10.5 mm
Nominal air gap “a” total (braked)
0.5
+0.25
mm
Limit air gap “a” for rotor replacement
1.0 mm
Inspection air gap “b” released, per single circuit
min. 0.15 mm
Tightening torque Item 1.2
3 Nm
Tightening torque Item 3
24 Nm
Tightening torque Item 16
8.5 Nm
Tightening torque Item 18.3
24 Nm
Tightening torque Item 18.6
8.5 Nm
Tightening torque Item 18.7
8.5 Nm
Tightening torque Item 18.9
10 Nm
Max. Speed
2250 rpm
Max. permitted friction work for both rotors at a speed of 1800 rpm
5000 J
Weight
11.4 kg
Table 2: Switching Times
Attraction t
2
50 ms
Drop-out t
0
(DC):
25 ms
Drop-out t
50
(DC)
5)
:
35 ms
Drop-out t
90
(DC)
5)
:
40 ms
Drop-out t
11
AC
180 ms
Drop-out t
1
AC
6)
340 ms
5)
Referring to the nominal braking torque
6)
Referring to the effective braking torque
The stated switching times can only be achieved using the respective correct electrical wiring. This also refers to the
protection circuit for brake control and the response delay times of all control components. If the brake is operated using
overexcitation, the respective switch-on and switch-off times for overexcitation must be taken into account.
The use of varistors for spark quenching increases the DC-side switching times.