maxon motor
4-Q-EC Servoamplifier DES 70/10
Operating Instructions
7 EMC-compliant installation
Power supply (+V
CC
- Power Gnd)
•
No shielding normally required
•
Star point-shaped wiring if several amplifiers are supplied by the same power
supply
Motor cable (> 30 cm)
•
Shielded cable highly recommended.
•
Connect shielding on both sides:
DES 70/10 side: Terminal 1 “Ground Safety Earth” and/or bottom of housing.
Motor side:
Motor housing or with motor housing mechanical design with
low resistive connection.
•
Use separate cable.
Hall sensor cable (> 30 cm)
•
Shielded cable highly recommended.
•
Connect shielding on both sides:
DES 70/10 side: Terminal 1 “Ground Safety Earth” and/or bottom of housing.
Motor side:
Motor housing or with motor housing mechanical design with
low resistive connection.
•
Use separate cable.
Direct connection motor/Hall cable (
≤
30 cm) on DES 70/10
•
Shield casing over motor/Hall connection cable (expecting EC 45/EC 60).
•
Connect shielding on both sides.
or
•
Lowest resistive connection of motor housing and “Ground Safety Earth”
terminal 1 and/or bottom of DES 70/10 housing
•
Cable design of motor/Hall connection cable as close as possible with aforemen-
tioned connection
Encoder cable
•
Encoder with line driver recommended.
•
Channel A, A\; channel B, B\; channel I, I\; twisted pair.
•
No shielding normally required.
•
Use separate cable.
RS-232
•
Twisted pair shielded cable recommended.
•
Use separate cable.
16
maxon motor control
April 2006 Edition / Subject to change
