64
6. Installation procedures
6.1 Mounting
The DBP series dissipates its heat by natural convection except DBPF types which are fan cooled. For optimum dissipation the amplifiers have to be mounted with the fins in vertical position.
6.2 Wiring
Proper wiring, grounding and shielding techniques are important in obtaining proper servo operation and performance. Incorrect wiring, grounding or shielding can cause erratic servo performance or even a complete lack of operation.
a)Keep motor wires as far as possible from the signal level wiring (feedback signals, control signals, etc.).
b)If additional inductors (chokes) are required, keep the wires between the amplifier and the chokes as short as possible.
c)Minimize lead lengths as much as is practical. Although the amplifier is protected against long (inductive) supply wires it is recommended to keep the leads as short as possible.
d)Use twisted and shielded wires for connecting all signals (command and feedback). Avoid running these leads in close proximity to power leads or other sources of EMI noise.
e)Use a 4 wires twisted and shielded cable for the motor connection.
f)Shield must be connected at one end only to avoid ground loops.
g)All grounded components should be tied together at a single point (star connection). This point should then be tied with a single conductor to an earth ground point.
h)After wiring is completed, carefully inspect all conditions to ensure tightness, good solder joint etc.
