Re: [CAD_CAM_EDM_DRO] Anyone have Electrocraft motor specs for models E670 or E530?

squideclipse wrote:

>
>Does anyone have the specs for Electrocraft Model E670 or E530? The
>E670 reads about 5 ohms from brush to brush while the E530 reads
>about 2.2 ohms. I would like to use them to drive a cast x-y table
>with timing belt reduction but I am unsure of how suitable they might
>be.
>
>

There are 6 winding patterns on the E670 motors, denoted by the -0x suffix
on the part number. The spec common to all windings is :

Max Cont torque 175 Oz-In

Peak torque 800 Oz-In

Now, for the winding variations :

Spec -10 -02 -03 -04 -05 -06
Kt (Oz-In/A) 18.9 39.4 63 82 102.5 ~36.5

Ke (V/KRPM) 14 29.1 46.6 60.6 75.9 ~27

Arm R, Ohms .56 1.7 4.0 6.4 10.0 x

Arm. Ind, mH 1.91 8.3 21.3 35.9 56.2 x

Peak Current 60 28.8 18 13.8 11.1 31 ?



The E-530 has 4 winding patterns, the common specs are :
Max cont torque 32 Oz-In

Spec -01 -02 -03 -04
Kt (Oz-In/A) 10.02 12.69 16.02 20.05
Ke (V/KRPM) 7.42 9.39 11.86 14.85
Arm R, Ohms 1.55 2.49 3.96 6.18
Arm Ind, mH 3.19 5.12 8.15 12.74
Peak Current, A 24 19 15 12

Tach specs :
Spec -00 -01 -02
V/Krpm 3.0 2.5 1.0
R, Ohms 150 150 12
L, mH 4 4 .048

Jon