
A-72937EN/11
To meet the requirement of the EMC Directive
TMN06007E_A-72937EN_11.DOC
- 32 -
Feed Back Cable
In Cabinet
Earth Plate
To Motor
To Motor
Earth Plate
In Cabinet
Earth Plate
Feed Back Cable
Motor
To Motor
Cable
Wrong
Right
Motor
Motor
Power Cable
Motor
Power Cable
Clamp
Cable
Clamp
4.3.2 Cables to be connected to the α,α(HV),β series servo amplifier
(1) Servo motor feedback cable
For servo motor feedback cables, use double layered shield cable. The double
layered shield cable is constructed as below.
Specification of the cable is A66L-0001-0405. This cable is also available from
Hitachi Cable Ltd. and Shinko Electric Industrial Co., Ltd.
Shield treatment of the cable should be as follows.
1) For the amplifier (cabinet) side, peel out the sheath and make the
shielding contact with an earth plate by a cable clamp.
Grounding of the cable should be done in the outer shield only. Leave the
inner shield open in both ends.
2) For the motor side, please refer to the itemized discussion in the item
4.3.2(3).
By the way, as for the following each cable (feedback cable, power cable and
spindle power cable and fan cable), the assembled one with the connectors
could be provided as a cable assembly.
(2) Servo motor power cable
For servo motor power cables, use shield cables. One of those cables is available with
“OR-VV-SB” from Shinko Electric Industrial Co., Ltd., a
Japanese cable
manufacturer. Shield treatment should be done as follows.
1) Servo amplifier side
Peel out the sheath in the amplifier side and make contact with an earth
plate by a cable clamp. Mount an additional grounding bar, separated
from those for signal cables, close to the cable inlet of the magnetic
cabinet. Connect the power cable shields to this grounding bar.