3.4 Main Circuit Wiring
27
Fixing the Cable
Fix and ground the cable shield using a piece of conductive metal (cable clamp).
• Example of Cable Clamp
Shield Box
A shield box, which is a closed metallic enclosure, should be used for shielding magnetic interference
(EMI). The structure of the box should allow the main body, door, and cooling unit to be attached to the
ground. The box opening should be as small as possible.
3.3.8 Other Precautions
• Whether the electricity is served or not to the motor, do not use the motor being rotated from the
outside.
• When restarting the power supply soon after turning OFF, alarm may occur to the SERVOPACK.
Refer to the power supply holding time in the following table to restart the power supply correctly.
3.4
Main Circuit Wiring
• SJDE SERVOPACKs are suitable where the power supply is less than 5000 Arms (230 V max.).
• SERVOPACKs must be used with UL-listed fuses or molded-case circuit breakers, in accordance
with the National Electrical Code (NEC).
• Use 75
°
C heat-resistant copper wires or an equivalent.
3.4.1 SERVOPACK Main Circuit Cables
Cable Types
• Wire sizes are selected for three cables per bundle at 40
°
C ambient temperature with the rated
current.
• Use cables with a minimum withstand voltage of 600 V for main circuits.
• If cables are bundled in PVC or metal ducts, consider the reduction ratio of the allowable current.
• Use heat-resistant cables under high ambient or panel temperatures where normal vinyl cables will
rapidly deteriorate and will not be able to use in a short period of time.
• Do not use cables under continuous regenerative state.
SERVOPACK
Min. Waiting Time
before Restarting
(s)
Model
Capacity
SJDE-01ANA-OY
100 W
20
SJDE-02ANA-OY
200 W
SJDE-04ANA-OY
400 W
SJDE-08ANA-OY
750 W
30
Symbol
Name
Allowable Conductor Temperature
PVC
Normal vinyl cable
−
IV
600 V vinyl cable
60
°
C
HIV
Temperature-resistant vinyl cable
75
°
C
Cable
clamp
Shield (cable sheath stripped)
Remove paint on mounting surface.
Fix and ground the cable shield
using a piece of conductive metal.
Ground plate
Host
controller
side
Cable
TOEP_C710806_03A_1_0.book Seite 27 Montag, 2. Juli 2007 3:55 15
