DRM Series, are versatile range of motor controllers for permanent magnet or shunt wound DC motors offered in a compact easy to use D/N Rail mounting package. Slim design, saves space and allows drive mounting adjacent to other control panel components. Easy to access adjustments and plug on screw terminals make these units and run. Dual voltage supply and selectable AVF or Tach. feedback are just some of the standard features.Available Configurations :

  • Non-Isolated
  • Fully Isolated (i)
  • Isolated Regen.(iR)

Ratings: 1/8 – 1 HP
Input: 115 VAC + 10%, 1Ø, 50/60Hz + 5%
Output: 0-90 VDC armature, 100VDC field

Ratings: 1/4 – 2 HP
Input: 230 VAC + 10%, 1Ø, 50/60Hz + 5%
Output: 0-180 VDC armature, 200VDC field



DRM Series Model Selection Table

HP Input 115VAC Input 230VAC
1/8 DRM025 N/A
¼ DRM050 DRM025
½ DRM100 DRM050
¾ DRM150 DRM075
1 DRM200 DRM100
N/A DRM150
2 N/A DRM200

Speed Range:
Speed range 0-100% (motor dependent)
Load regulation typically 0.2% tach, 2% Arm Volts.

External Control:
Speed setpoint from external 10K Ohms pot.
External RUN contact for electronics STOP/START,
These is a pot kit including graduated dial and knob.

1 to 20 seconds up ramp rate.

Minimum speed:
Adjustable from 0 to 30% of the max. speed

Maximum speed:
Adjustable from 50 to 200V

IR Compensation:
Adjustable from 0 to 25%

Speed Regulation:
+1.0% with armature feedback
percent of base speed with 95% load change.

Dimensions (Non-Isolated):
DRM025 & DRM050: 1.4″ (W) x 4.7″ (D) x 4.1″ (H)
DRM100 & DRM200: 1.8″ (W) x 4.7″ (D) x 4.1″ (H)

Weight (Non-Isolated): 1 lbs

Dimensions (Isolated & Isolated Regen.):
DRM025i/R & DRM050i/R: 2.4″ (W) x 4.7″ (D) x 4.1″ (H)
DRM100i/R & DRM200i/R: 2.8″ (W) x 4.7″ (D) x 4.1″ (H)

Weight (Isolated & Isolated Regen): 1.5 lbs


  • Isolated models have comprehensive system I/O.
  • Linear outputs for Ramp, Demand, Speed and Current.
  • Linear inputs for ramped I/P, Direct I/P, Torque I/P..
  • Logic outputs for overload and Trip.
  • Uncommitted level comparator, and signal  sign changer..


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