Leroy-Somer E27 Series, Установка и обслуживание

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Installation and Operational Instructions for ROBA
®
-twinstop
®
Type 8012._ _ _ _ _ Sizes 150 to 350
(B.8012.GB)
05/07/2010 TK/HW/SU Chr. Mayr GmbH + Co. KG Tel.: 08341 / 804-0
Eichenstraße 1 Fax: 08341 / 804-421
D-87665 Mauerstetten http://www.mayr.de
Page 6 of 15 Germany eMail: info@mayr.de
Table 1: Technical Data (independent of Type and Size)
Nominal air gap
1)
"a" braked (Fig. 3)
0,45
2 , 0
05 , 0
+
−
mm
Limit air gap
2)
"a" for rotor replacement 0,9 mm
Inspection air gap "b" on released brake (Fig. 3) min. 0,25 mm
Protection (coil/casting compound): IP54
Protection (mechanical): IP10
Protection (switch): IP67
Ambient temperature: 0 °C to +45 °C
Duty cycle: 60 %
1)
Measured in the horizontal centre axis area of the respective armature disk (2).
2)
Danger!
The tension ability of the brake increases, above all when operating with reduced torques and / or in operation with
overexcitation.
Due to the brake noise behaviour and for reasons of safety, the rotor (3) must however be replaced at the latest when
the air gap reaches 0,9 mm (see section on Maintenance, page 15).
If there is still a risk of the device wearing down to an air gap of 0,9 mm unnoticed, we recommend mounting a wear
monitoring device (available on request).
When the air gap reaches "a" > 2,0 mm (design with hand release) or "a" > 2,5 mm (design without hand release), the
armature disk (2) will lie against the mechanical contacts, which causes a sudden drop in braking torque to 0 Nm and a
risk of load crashes.
Table 2: Technical Data
Size
Nominal torque
3)
minimal
Overexcitation
voltage
1,5 to 2 x U
Nom
Nominal voltage
U
Nom
Nominal capacity
P (20 °C)
Inductivity
(207 V – coil)
Rotor thickness
in new condition
90 Nm
120 Nm
150 Nm
No 24/104/180/207 V DC 2 x 68 W 18
–0.05
mm
150
4)
> 150 Nm Yes 24/104/180/207 V DC 18
–0.05
mm
120 Nm
160 Nm
200 Nm
No 24/104/180/207 V DC 2 x 63 W 18
–0.05
mm
200
4)
> 200 Nm Yes 24/104/180/207 V DC 18
–0.05
mm
185 Nm
230 Nm
250 Nm
280 Nm
No 24/104/180/207 V DC 2 x 79 W 18
–0.05
mm
250
4)
> 280 Nm Yes 24/104/180/207 V DC 18
–0.05
mm
250 Nm
300 Nm
350 Nm
410 Nm
No 24/104/180/207 V DC 2 x 82 W 18
–0.05
mm
350
4)
> 410 Nm
Yes 24/104/180/207 V DC 18
–0.05
mm
3)
The braking torque (nominal torque) is the torque effective in the shaft train on slipping brakes, with a sliding speed of 1 m/s referring to
the medium friction radius.
4)
Larger braking torques available on request