What is difference between CD35M and CD60/80M?

Owned by Jack Degrano
Last updated: Apr 22, 2024 by Perla Madrigal (Unlicensed)
2 min read

The CD20/25/25M30/35/35M/40 drives are no longer available. The CD60M or CD80M is the nearest equivalent. Read the following to consider replacement of obsolete drive:

  1. On Pin 24 of older CD's is a boost function.

Connecting this input terminal to the 0V terminal increases the motor current by approximately 30%. You can use this function to increase torque at strategic times , such as during acceleration.
On Pin 24 of the CD60 this boost function has been replaced with a reset input.
You may reset the drive by applying a logic low to the reset input for 1 second. This input was formally boost on the existing CD range. Ensure any boost connection is removed when replacing a older CD drive with a CD60M/80M drive.

(VERY FEW PEOPLE EVER USED THIS)

If it was used disconnect it. If the Original Mother Boards have Dip Switches set these all to off as the CD60M/CD80M are configured on board the drive where as some older CD¿s were configured on the Mother Board.

 

  1. Steps Per Revolution of Motor

CD25M/35M
200, 400, 1000, 2000 Steps/Revv

CD20/25/30/35/40
200, 400 Steps/rev

CD60M/CD80M (NOTE : NO 200 Steps /Rev Option)
400, 1000, 2000, 4000 steps/rev

 

  1. Motor Currents settings

CD20*
2.8, 2.4, 2, 1.7, 1.4, 1.1A (without boost)

CD25/25M*
1.5, 1.75, 2, 2.25, 2.5, 2.75, 3, 3.25A (without boost)

CD30*
5.6, 4.8, 4, 3.4, 2.8, 2.2A (without boost)

CD35/35M*
6, 5.5, 5, 4.5, 4, 3.5, 3A (without boost)

CD40*
9.3, 8, 6.6, 5.6, 4.6, 3.6A (without boost)

CD60M
6A, 5.5A, 4.4A, 3.8A

CD80M
7.8, 7, 5.6, 4.9A

*(in half step mode, these currents increase by 35%)

Note 1: Boost increases current by 30%
Note 2: Standby Current Reduction: 80% of full load, 50% of full load, or
Permanent (50%) standby (i.e. half above quoted currents). You can use this to achieve lower currents depending on what size motor you are running. (see the Link settings in the UG)

 

  1. Voltage supply

CD20/25/25M/30/35M/40
Logic Supply 20 to 26 VDC
Motor Supply 24 to 85VDC

CD60M/80M
Logic Supply derived from Motor Supply
Motor Supply 48 to 140VDC

Note 1: If using a CD35MBkit turn off the motherboard dipswitches, and use the jumpers on the drive only.
Note 2: Use FP50 if replacing with the CD60 (14HP 3U). Use FP51 if replacing with the CD80 (14HP 3U)

 

  1. Chopping Frequency

CD20: 6kHz
CD30: 4kHz
CD25/25M/35/35M: 7.5-30kHz (depends on motor speed)
CD40: 3kHz