Zenith ZeDrive, Руководство пользователя

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TO GET ASSISTANCE, CALL: 919-774-7667 ZENITH PUMPS
ZeDrive will arrive with all internal wiring of NEMA 12 cabinet complete, for most customer require-
ments. Customers will be required to wire to the terminal strip mounted inside the cabinet. If customers
desire to use some available functions of ZeDrive that are considered non-routine, customers may have
to wire to ZeDrive, too.
If ZeDrive is ordered as a NEMA 4 standalone drive, customers are required to make all connections to
the drive.
CAUTION:
Wiring practices must conform to applicable local electric codes and the National Electric Code (NEC).
If installed in a country outside the USA, wiring practices should conform to the electric codes of the
country ZeDrive is installed in.
•
Input power to the control cabinet must be supplied through an appropriately sized circuit
breaker or fused disconnect that is within easy reach of the cabinet. In high noise environ-
ments, install an isolation transformer on the input AC power
•
The control cabinet ground must be a single point termination and be at a resistance of less
than 1 ohm with relation to true earth. All grounds within the control cabinet must be con-
nected to the single point ground termination.
•
Use arc suppressors across the coil of all AC relays and contactors
•
High voltage wiring (> 50 V) must be run in separate conduit from low voltage (<50 V) or
signal wiring. If run parallel to each other, high voltage wiring should be separated from low
voltage and signal wiring by 12 inches or as much as physically possible. If they must cross
each other, they should cross perpendicularly. Do not route 115 VAC control wiring and low
level signal wiring in the same conduit. Do not route feedback wiring along the motor case.
Motor armature and field leads must be run separate from shielded signal cable to avoid
signal EMI noise in feedback
•
Shielded cable should be used for signal wiring to prevent electrical noise contamination.
The shield should be terminated at ZeDrive only. ( NOTE : Terminating the shield at both
ends causes ground loops and defeats the purpose of using shielded cable).
•
Low voltage wiring making long runs outside a control cabinet should use shielded cable
also. Shield termination should be at the end of the equipment requiring the most noise pro-
tection. (
NOTE : In some cases, this may be the PC or PLC, rather than ZeDrive).
•
Field wiring entails connecting power input, motor armature and feedback signal wiring
NOTE:
Wiring Instructions
TO PREVENT PERSONNEL ELECTROCUTION OR DAMAGE TO THE EQUIPMENT,
MAKE SURE ALL POWER TO ZEDRIVE IS REMOVED BEFORE MAKING ANY WIR-
ING CONNECTIONS OR CHANGES.
NEMA 12 enclosure is not provided with any pre-punched conduit holes. Customers are re-
quired to punch holes in the enclosure to facilitate field wire entrance. Customers should en-
sure that the entrance holes and conduit conform to local wiring codes.