Catalogue_Stepper_Motors_VRDM_ExRDM_GB_04_2007.pdf

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Catalogue
Stepper Motors VRDM, ExRDM
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Stepper Motors
Table of Contents
3-phase stepper motors
Product description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
VRDM 36•
Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Dimensional drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Type code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
VRDM 39
Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Dimensional drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Type code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
VRDM 311
Technial data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Dimensional drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Type code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Options
Holding brake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Encoder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Gearbox. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Explosion-proof 3-phase stepper motors
ExRDM 39
Product description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Technial data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Dimensional drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Type code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Options
Encoder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Gearbox. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
2-phase stepper motors
VRDM 26
Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Dimensional drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Motor connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Type code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Appendix
Conversion tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Berger Lahr
Catalogue Stepper Motors VRDM, ExRDM
1
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Product description
3-phase stepper motors
Product description
The 3-phase stepper motors from Berger Lahr are extremely robust, maintenance-
free motors. They carry out precise stepper movements that are controlled by a step-
per drive. A stepper motor drive consists of a stepper motor and the matching stepper
drive. The maximum power can be reached only if motor and electronics are optimally
matched.
The 3-phase stepper motors can be operated at very high resolutions depending on
the stepper motor controller.
Options such as rotation monitoring and holding brake with robust, low-play planetary
gears extend the application options.
There are also 3-phase stepper motors by Berger Lahr in normal and explosion-proof
types (explosion degree of protection EEx d IIC T4).
Special features
Quiet
Due to the sinus-commutation of the drive and the special mechanical construction of
the motors, the result is a very quiet stepper motor that runs virtually resonance-free.
Strong
The optimised internal geometry of the motor offers a high power density; i.e. up to
50% greater torque compared to conventional stepper motors of comparable size.
Stepper motor drive system
Flexible
It is possible to manufacture and supply a wide variety of motor types due to their fle-
xible modular system and modern version management.
Design
1
(1) Motor connection, here versions with an offset connector
(2) Additional terminal for protective conductor
(3) Housing, with black protective coating
(4) Axial flange with four mounting points as per DIN 42918
(5) Smooth shaft end as per DIN 42918
2
3
4
5
2
Catalogue Stepper Motors VRDM, ExRDM
Berger Lahr
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3-phase stepper motors
Product description
Product overview
3-phase stepper motors
VRDM 36•
VRDM 39
VRDM 311
ExRDM 39
(explosion-proof motors)
Size
6
9
11
9
Max. torque M max
Nm
0.45 ... 1.50
1.7 ... 6.0
12.0 ... 16.5
4.0 ... 5.8
Holding torque M H
Nm
0.51 ... 1.70
1.92 ... 6.78
13.5 ... 19.7
4.5 ... 6.55
Steps per revolution z 1)
200 / 500 / 1000 / 2000 / 4000 / 5000 / 10000
Step angle α 1)
°
1.8 / 0.9 / 0.72 / 0.36 / 0.18 / 0.09 / 0.072 / 0.036
1)
Depending on controller
Motor types
Gear 1)
Shaft model
Centring
collar
Size
(Flange
dimension)
Length
(Dimension
without shaft)
Winding 2)
Motor
connection 3)
Options 4)
VRDM 36
PLE 40
smooth
Ø 6.35 mm
Ø 38.1 mm 6 (57.2 mm)
4 (42 mm)
H
Braided wires
2nd shaft end
PLE 60
6 (56 mm)
H
Terminal box
Holding brake
PLS 70
N
Plug
Encoder
8 (79 mm)
H
Ø 8 mm
N
W
VRDM 39
PLE 80
smooth
with woodruff
key
Ø 9.5 mm 5)
Ø 60 mm
9 (85 mm)
7 (68 mm)
H
Braided wires
2nd shaft end
PLS 90
Ø 12 mm
Ø 73 mm
10 (98 mm)
N
Terminal box
Holding brake
Ø 14 mm
13 (128 mm)
W
Plug
Encoder
VRDM 311
PLE 120
with parallel
key
Ø 19 mm
Ø 56 mm
11 (110 mm)
17 (180 mm)
W
Terminal box
2nd shaft end
PLS 115
22 (228 mm)
Plug
Holding brake
Encoders
ExRDM 39
PL 50/100/ATEX with woodruff
key
Ø 14 mm
Ø 60 mm
9 (85 mm)
10 (98 mm)
W
Terminal box
Holding brake
13 (128 mm)
Encoder
1)
Planetary gears each available in the gear ratios 3:1, 5:1 and 8:1. The gear PL 50/100/ATEX is available in the gear ratios 3:1 and 5:1
2)
Nominal voltage: H = 24 / 35 V DC ; N = 130 V DC ; W = 325 V DC
3)
Motors with W-winding are not available with braids. For motors with terminal box there is a strip terminal within the motor; the screwed cable gland is sealed and EMC-tested.
4)
Alternative: 2 nd shaft end or holding brake. Motors with encoder are only available with plug; 2 nd shaft end or holding brake are not possible then.
5)
Ø 9.5 mm and Ø 12 mm at VRDM 397 and VRDM 3910; Ø 14 mm at VRDM 3913
Berger Lahr
Catalogue Stepper Motors VRDM, ExRDM
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