Setup
Pin Assignment for Connector Boards & Compact Versions
maxon motor control
EPOS4 Positioning Controller
Document ID: rel8399
3-31
EPOS4 Module/Compact 50/8 Hardware Reference
Edition: November 2018
© 2018 maxon motor. Subject to change without prior notice.
3.3.5.3
Motor (X3a) (X3b)
The controller is set to drive either maxon EC motor (BLDC, brushless DC motor) or maxon DC motor
(brushed DC motor) with separated motor/encoder cable.
Maximum permitted current
The connectors are designed for the following output currents:
• X3a: I
cont
≤
11 A
• X3b: I
cont
≤
15 A
Figure 3-17
Motor connectors X3a (left) and X3b (right)
Table 3-17
Motor connector X3a / X3b – Pin assignment for maxon DC motor
Table 3-18
Motor connector X3a / X3b – Pin assignment for maxon EC motor
Continued on next page.
X3a
X3b
Head A
Prefab
Cable
Head B
Signal
Description
Pin
Color
Pin
1
white
Motor (+M)
DC motor: Motor +
2
brown
Motor (−M)
DC motor: Motor −
3
green
–
not connected
4
black
Motor shield
Cable shield
X3a
X3b
Head A
Prefab
Cable
Head B
Signal
Description
Pin
Color
Pin
1
white
Motor winding 1
EC motor: Winding 1
2
brown
Motor winding 2
EC motor: Winding 2
3
green
Motor winding 3
EC motor: Winding 3
4
black
Motor shield
Cable shield