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3.1
Wiring
Wiring of any industrial equipment should be done with some consideration for future
troubleshooting and repair. It is a good idea that wiring be either color coded and/or
tagged with industrial wire tabs.
3.1.1 Interlocking
The user is responsible for emergency interlock switches. Any master interlock should
be wired to shut down AC power to all parts of the system. Your system should be
designed such that power is disconnected from the output loads any time the equipment
is not running or when the emergency stop is activated.
3.1.2 EMI/RFI Interference
If there is sensitive electronic equipment (digital computer, test equipment, etc.)
operating on the same AC power line as the Drive, additional EMI/RFI filtering may be
required to reduce the effects of conducted AC line noise.
3.1.3 Shielding Suggestions
Effects of electrical noise on the electronic equipment are greatly reduced when the
techniques outlined below are closely followed.
Do not run low power control signals and high power wiring in the same raceway.
Ø
If mixing wires cannot be avoided, then the low voltage control input and output
Ø
wiring must be shielded. The shield for these wires should be connected to ground
only at the source end of the signals.
Do not connect both ends of a shielded cable to ground unless specified by the
Ø
manufacturer to do so. This may cause a ground loop condition which could cause
erratic equipment behavior and may be very difficult to locate.
All the wires in the system must be kept as short as possible.
Ø
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3
INSTALLATION -- ELECTRICAL
Section 3– Page 1
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