hello there
been looking at stuff.
the spindle motor is a maxon 35/6mm motor body
its mounting is 3 on a triangle
the output shaft i think is 6mm
this goes through a plum or blum coupling to the collet which is in a bearing of its own - real nice and sturdy and factory
I take it IF its a brushed dc motor with a tach its old school
so
maxon themselves make I would assume its modern equivalent in this ?
https://www.ebay.co.uk/itm/334307656880?hash=item4dd64a04b0:g:anUAAOSwD5BZa-XI&amdata=enc%3AAQAHAAAAoFJ2B9dudiAGgCBZwUiE3sJZFTj%2BHP7mSb6gdaZ9xEC6XYU8nC34rccipP5azMeOMx5p1NvJ1BbGtUBH%2FGTiw9mEbRNOk2X6JoQuhxfmBPQcYjm6Zcwvk0YfYZgsr7h%2F%2Bi90nLozUXPf%2B36eRvENX9W6KtkI6vof4l9VmM%2FzlBs0kxltbj3nFCJCRmL6kw3I4vpmxXR2ss2wmCdlZWSuXpw%3D%7Ctkp%3ABk9SR9Kl-bbJYQ
Maxon DC motor
Quick Information (Motor + Encoder)
Nominal Motor Voltage: 42 V
Nominal Motor Power: 90 W
Nominal Speed: 7560 rpm
Diameter (Motor): 35 mm
Length over all: 111 mm
Length encoder to motor mounting flange: 91.5 mm
Width at encoder: 45 mm
Motor shaft diameter: 6 mm
Motor shaft length: 18 mm
Encoder resolution at motor shaft: 1000 Counts / rotation = 4000 Increments / rotation
Encoder Voltage: 5 V
Encoder Channels: 2 (A-B)
Original price in this configuration: approx. 482 $
Cable length ca. 250 mm
Comes with a complete cord set, including ferrite cores, combining motor and encoder contacts in one 8-pin plug.
Please tell me if you would like the cable to be removed.
PinOut Encoder
Pin 1: Gnd Enc
Pin 2: not connected
Pin 3: Channel A
Pin 4: Vcc Enc (5V)
Pin 5: Channel B
PinOut Plug
Pin 1: Motor (+)
Pin 2: Shield
Pin 3: Channel B
Pin 4: Vcc Enc (5V)
Pin 5: Channel A
Pin 6: Gnd Enc
Pin 7: Shield
Pin 8: Motor (-)
About Maxon DC motors
maxon DC motors are high-quality motors fitted with powerful permanent magnets. The ?heart? of the motor is the worldwide patented ironless rotor. For you, this means cutting-edge technology in compact, powerful and low inertia drives.
Application
This high quality DC motor with attached incremental encoder and high precision planetary drive can be used for various applications like:
- Robotics
- Arduino projects DIY
- Home automation
- Motion control
- Speed control
- Mechatronic systems
- High torque, hiqh precision, low space application
Specifications - Motor
Maxon Art.-no.: 273754
Supply Voltage 42 V
Nominal power 90 Watt
No load speed 7560 rpm
No load current 92.9 mA
Nominal speed 6820 rpm
Nominal torque (max. continuous torque) 101 mNm
Nominal current (max. continuous current) 2.02 A
Stall torque 1080 mNm
Starting current 20.7 A
Max. efficiency 86 %
Characteristics
Terminal resistance 2.03 Ohm
Terminal inductance 0.62 mH
Torque constant 52.5 mNm/A
Speed constant 182 rpm/V
Speed / torque gradient 7.05 rpm/mNm
Mechanical time constant 5.35 ms
Rotor inertia 72.5 gcm2
Thermal data
Thermal resistance housing-ambient 6.2 K/W
Thermal resistance winding-housing 2 K/W
Thermal time constant winding 30.2 s
Thermal time constant motor 644 s
Ambient temperature -30...+100 °C
Max. permissible winding temperature +155 °C
Mechanical Data
Bearing Type Ball bearings
Max. permissible speed 12'000 rpm
Axial play 0.05 - 0.15 mm
Radial play 0.025 mm
Max. axial load (dynamic) 5.6 N
Max. force for press fits (static) 110 N
(static, shaft supported) 1200 N
Max. radial loading 28 N, 5 mm from flange
Weight 340 g
Other Specifications
Number of pole pairs 1
Number of commutator segments 13
Direction of rotation Clockwise (CW)
Number of autoclave cycles 0
Specifications - Encoder
General information
Encoder Avago HEDS 5500 B11
Encoder type Incremental Quadrature Encoder
Counts (Lines) per turn 1000
Increments per turn 4000
Number of channels 2 (A B)
Line Driver No
Index Signal No
Max. speed 12'000 rpm
Shaft diameter 4 mm
Technical Data
Supply Voltage Vcc 5.0 V ± 10.0 %
Driver used logic TTL
Min. angular acceleration 250000 rad / s2
Output current per channel -10...5 mA
Signal rise time 180 ns
Measurement condition for signal rise time CL = 25 pF, RL = 2.7 kOhm
Signal fall time 40 ns
Measurement condition for signal fall time CL = 25 pF, RL = 2.7 kOhm
Phase shift 90 °e
Phase shift, inaccuracy 45 °e
Index synchronised to AB Yes
Max. moment of inertia of code wheel 0.6 gcm2
Operating temperature -40...+100 °C
Orientation encoder to motor defined -1.0°
I gather the encoder then wants 5v i/o = great
so do the limit switches I have !!!
which leads to
does the ess smoothstepper run 5v i/o
i.e. I need to buy another controller anyway - the other one can be used on the plasma table
so
buy that motor
buy an ess smoothstepper IF the i/o is 5v
refit the photo limit switches stock
run the drives 48v
use the same psu for the spindle
bobs your auntie
I need anotehr controller
less hassle with limit switching
up the spindle power
up the driver power
Guest
Show Posts
