cemp DB 20 Скачать руководство пользователя страница 9

P

Brake

Brake

On

Off

26

E

N

G

L

IS

H

On request, it is possible to have a manual brake
release that allows the shaft to rotate even when the
power is off. The release system is fastened to the
brake enclosure shield

ds

.

Turning the screw

P

clockwise about 45° releases

the motor shaft (figure 2G).

Turn in the opposite

direction to reset the brake.

In non-ventilated

motors, the release spanner is not included with the
motor (spanners are widely available on the market).
If the motor is servo-ventilated (figure 2H), insert the
specific release lever (provided with the motor) into
the lower part of the slot on the fan cover. Then push
towards the Brake Off position

G

. Turn in the oppo-

site direction to reset the brake, Brake On position

H

.

Warning: before restarting the machine,

make sure that the brake is in the Brake On posi-
tion (figure 2H).

2.6 Manual release 180÷315

(optional on request)

Fig. 2G

3. Installation

In addition to information on the motor, the motor’s
nameplate also shows:

1

Brake type: Brake model fitted.

2

Brake voltage: power supply voltage [V] for the
brake

3

Operation: Maximum number of operating
cycles per hour and type of work cycle.

4

Power: electrical power absorbed by the brake
[VA] for motors 63÷160; [W] for motors 180÷315

5

Braking torque: Static braking torque [Nm]

6

Moment of inertia: Maximum moment of inertia
for the machine controlled, referred to the motor
shaft [kgm

2

].

3.1 Nameplate (information on the

brake)

Figure 3B -

for motors 180÷315

Fig. 2H

H

Brake On

G

Brake Off

Figure 3A -

for motors 63÷160

II

2G

0722 CESI

09 ATEX 021

n1208819001y12

Electric Motor DB75

225M

4

3~

Exde

II

B T4 IP56

V

A

Hz 1/min

cos

ϕ

kW

440

77.40

60 1778

0.83

45.0

760

44.69

Brake K10 140W

AC220/1

400Nm

IC416

CLF

Ta45° C

S1

J = 3.438 kgm

2

kg 650

Manufacturer Cemp srl - I 20030 SENAGO (Milan) - ITALY

regrease joints after any dismounting - fasteners quality 8.8 EN 898-1

Y

a

d

b

c

f

e

0722 CESI

03 ATEX 111

n1211549001y12

Electric Motor

DB30

90L

4

3~

Exd

II

B T4 IP55

V

A

Hz 1/min

cos

ϕ

kW

230

6.13

50 1400

0.79

1.50

400

3.54

Brake MEC8 0

140 VA

AC400V/3

~

20Nm

IC416

CLF

Ta40° C

S1

J = 0.283 kgm

2

kg 52

Manufacturer Cemp srl - I 20030 SENAGO (Milan) - ITALY

regrease joints after any dismounting - fasteners quality 8.8 EN 898-1

Y

a

d

c b

f

e

II

2G

Содержание DB 20

Страница 1: ...Electric Motors with brake Additional use and maintenance instructions Industrieweg 16 NL 3881 LB Putten T 31 0 341 36 96 96 F 31 0 341 36 96 90 E info kolmer nl ...

Страница 2: ...meplate information on the brake 26 3 2 Electrical connections 27 3 3 Connection for auxiliary devices 27 3 4 Manual release optional on request 27 4 Maintenance 28 4 1 Introduction 28 4 2 Dismantling and re assembling the brake cover enclosure motors 63 160 28 4 3 Adjusting the braking torque motors 63 160 28 4 4 Adjusting the air gap motors 63 160 29 4 5 Changing the brake disc motors 63 160 30 ...

Страница 3: ...e damage to the equipment The motors are supplied ready for use according to the specifications indicated in the order If any braking torques work cycles or inertias differ from those indicated in the order are required please contact us Noise level Motors with brake produce noise when the brake opens and when starting up The noise level depends on the installation conditions and the air gap value...

Страница 4: ...When the brake is powered the electro magnet dp attracts the mobile armature dl As this moves the springs are compressed releasing the brake disc dm so that the motor shaft to which the brake disc is coupled is able to turn freely When the voltage to the brake is disconnected the electro magnet is deactivated and the springs push the mobile armature against the brake disc The brake disc causes fri...

Страница 5: ...22 ENGLISH br ctdq dm dl dp dt br ctdq dm dl dp dt cr bq Fig 2A Series D 63 160 Series H 71 160 ...

Страница 6: ...23 br ct dq dt dm dl dp dm ds dqdl dp br ctdt ds bq cr ENGLISH Fig 2B Series D 180 315 Non ventilated Servo ventilated ...

Страница 7: ... the brake is not powered A pinion toothed hub dq is coupled to the motor shaft br The brake disc dm is fitted on the toothed hub The brake disc and the toothed hub connected to the shaft make up the rotating part of the brake The brake disc can move along the axis of the shaft on the toothed hub towards the brake holder shield which forms the braking surface along with the mobile armature dl A pr...

Страница 8: ...the rotation of the motor shaft The three adjustment screws et make it possible to adjust the braking torque The eight nuts fkA permit adjustment of the air gap between the brake disc and the brake holder shield If the motor is set up for installation in verti cal position the brake can present some con struction variations Size 71 160 motors can be fitted with a manual brake release lever that al...

Страница 9: ...ed 2 Brake voltage power supply voltage V for the brake 3 Operation Maximum number of operating cycles per hour and type of work cycle 4 Power electrical power absorbed by the brake VA for motors 63 160 W for motors 180 315 5 Braking torque Static braking torque Nm 6 Moment of inertia Maximum moment of inertia for the machine controlled referred to the motor shaft kgm2 3 1 Nameplate information on...

Страница 10: ...box while motors with Ex de type pro tection have the rectifier located inside the brake enclosure When making a connection use the diagram supplied with the motor and bear in mind that the brake may be provided for various types of power supply Directly via a direct current line by a single phase alternating current line via a rec tifier in the terminal box or in the brake cover enclosure Upon re...

Страница 11: ...ection or maintenance before closing the brake cover enclosure Make sure that the air gap is set correctly see paragraph 4 4 Reinstate the original layer of grease e g Molyduval Bariplex grease on the flameproof joints Check that the friction surfaces brake disc brake holder shield and mobile armature are clean and free from oil or grease The motor is supplied with a ready to use calibrated brake ...

Страница 12: ... 4B affecting the brake s performance The maximum acceptable air gap under maximum torque conditions is 0 7 mm Table 4B Recommended air gap For size 71 160 motors fig 2C the air gap is adjusted by turning the nuts fkA and fkB to move the electro magnet to the original gap from the mobile armature For size 63 motors fig 2D the air gap is adjusted by turning the fixing screws es after having slacken...

Страница 13: ...he springs Remove the mobile arma ture and pull the brake disc off the toothed hub Replace the brake disc and reassemble the parts removed previously being careful to set the brak ing torque see 4 3 and the air gap see 4 4 For size 63 motors fig 4B proceed as follows Unscrew the fixing screws es and remove the sin gle unit being careful not to damage the power supply cable for the brake Pull the b...

Страница 14: ...ectro magnet dp Follow the directions in reverse order to mount the new electro magnet When the braking unit is fastened to the brake holder shield adjust the air gap with the eight screws fkA E Replacement of the brake disc dm the mobile armature dl the springs fl Follow the directions given above to disassemble the brake enclosure shield the brake cover enclo sure the electro magnet and the DC A...

Страница 15: ...losure dt and the micro switch I that is set on the external cir cumference of the electro magnet Follow the directions in reverse order to connect the micro switch the brake and the encoder if present G Final reassembly Remount the brake cover enclosure and the brake cover with the relative fixing screws taking care to grease the coupling joints lightly beforehand Proper functioning of the brake ...

Страница 16: ...isc The brake has a delayed action Power supply voltage high Check power supply voltage The brake releases after a delay Air gap too big wear Check air gap Replace the brake disc if necessary Low power supply voltage for the brake Check power supply voltage The brake does not stop the motor Residual activation voltage too high when a rectifier is fitted Check residual voltage Brake disc stuck mech...

Страница 17: ...ement et d amélioration continue des produits la Société Cemp se réserve le droit et la faculté d apporter toute modification sur la documentation et sur les pro duits à tout moment et sans préavis Les descriptifs et les caracté ristiques techniques conte nus dans ce catalogue n engagent pas la Société Par conséquent ces données ne constituent en aucun cas un engagement contractuel Die Ausführunge...

Страница 18: ...Industrieweg 16 NL 3881 LB Putten T 31 0 341 36 96 96 F 31 0 341 36 96 90 E info kolmer nl ...

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