Emerson Epsilon Eb Digital Servo Drive, 400501-05 Motor Feedback Wiring, Motor Brake Wiring

Installation

Note

The motor ground wire and shields must be run all the way back to the amplifier terminal and must not be connected to any other conductor, shield or ground.

Motor Feedback Wiring

Encoder feedback connections are made with the CFCS cable. This cable has an MS style connector on the motor end and a 26-pin high density “D” connector on the drive end.

For A, A, B, B and Z, Z pairs, the CFCS cable uses low capacitance (~10 pf/ft) wire to get a characteristic impedance of 120 ohms. This impedance match is important to minimize signal loss and ringing.

Figure 15: Motor Feedback Connector Pinout

Motor Brake Wiring

Motors equipped with brakes have a three-pin MS style connector. The Control Techniques brake power cable (model CBMS-XXX) has an MS style connector on the motor end and three wire leads on the amplifier end (see wiring diagram below).

You must provide a DC power supply rated at +24 VDC with a 2 amp minimum current capacity for the brake. If you use this voltage source to power other accessories such as I/O or more than one brake, you must increase its current capability.

19