ElmoMC SimplIQ Digital Servo Drives-Guitar Evaluation Board User Guide - Manual (Page 91)

Whistle, Bell Guitar Evaluation Board User Guide Cables
MAN-EVLBRD-WHI-BEL-GUI (Ver. 1.401)
91
 The impedance of the wire must be as low as possible. The size of the wire must be thicker
than actually required by the carrying current. A 24, 26 or 28 AWG wire for control and
feedback cables is satisfactory although 24 AWG is recommended.
 Use shielded wires for motor connections as well. If the wires are long, ensure that the
capacitance between the wires is not too high: C < 30 nF is satisfactory for most
applications.
 Keep all wires and cables as short as possible.
 Keep the motor wires as far away as possible from the feedback, control and
communication cables.
 Ensure that in normal operating conditions, the shielded wires and drain carry no current.
The only time these conductors carry current is under abnormal conditions, when
electrical equipment has become a potential shock or fire hazard while conducting
external EMI interferences directly to ground, in order to prevent them from affecting the
drive. Failing to meet this requirement can result in drive/controller/host failure.
 After completing the wiring, carefully inspect all wires to ensure tightness, good solder
joints and general safety.
.30.1 Recommended Wire Cross Sections
Function Connection Details
Motor PE, M1, M2, M3 18 AWG
Auxiliary power VL, PR 24 AWG
Feedback and Control MAIN FEEDBACK
AUX FEEDBACK
GENERAL I/O
MAIN BUFFERED OUTPUT 24 AWG twisted pair shielded
cables as described below
(Section B.3.2)
Communications RS-232
CANopen 26 AWG twisted pair shielded
cables as described below
(Section B.3.2)