Table 5.16 Applicable Cable
Cable Type Conduit
Allowable
Symbol Name Temperature (°C)
PVC General vinyl cable
IV 600V vinyl cable 60
HIV Special heat2resistant
vinyl cable 75
5.9 NOISE CONTROL
Servopack uses power transistors in the main circuit. When these transistors are switched,,
the effect of di/dt or dv/dt £switching noise) mat' sometimes occur depending on the wiring
or grounding method.
The Servopack incorporates CPU. This requires wiring and treatment to prevent
noise interference. The recommended wiring and grounding are for reducing switching
noise shown in Fig. 5.19.
1) Grounding method
SERVOMOTOR
Note 2 t--
, SERVOPACK
200VAC" _ [ 1' CACR-HR V i
I 41 w
r
CASE . t I
2,4,5CN
[ ,,,
I "OPERATING RELAY 3.5mm'
SEQUENCE OR
•USERSIGNALS MORE
CONTROL
CIRCUIT
I
I
[_--i [ Note 2 2ram OR MORE
P
3.5mm'
OR
MORE
R MORE
LEAD OF CASE
#)-r .\3.5mm*OR MORE
• 100V For Servopack Type HR[_BAB'll -- PANEL GROUNDING
P: Twisted cable --_ ONE POINT GROtJNDING
_3._
Notes :
1 Use wires of 3,5rnm 2or more for grounding to the case (preferably fiat-woven
copper wire).
2 Connect line filters observing the precautions as shown in (2) Noise filter installation.-
Fig. 5.19 Grounding Method
- 91 -
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