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72-Inch Cabinet Site Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-12 Command Module and Drive Module Site Preparation Guide
Site Wiring
The cabinet’s AC power distribution boxes use common industrial wiring. Consider the
following information when preparing the cabinet installation site:
•
AC power source – The AC power source must provide the correct voltage, current, and
frequency specified on the manufacturer’s nameplate.
•
Earth ground – You must have an earth grounding conductor to the cabinet’s power
receptacles.
•
Circuit overloading – Ensure the power circuits and associated circuit breakers provide
sufficient power and overload protection. To prevent possible damage to the AC power
distribution boxes and other components in the cabinet, use an external, independent
power source which is isolated from large switching loads (such as air conditioning
motors, elevator motors, and factory loads).
•
Module power distribution – There are two accessory outlets inside the cabinet for
module power distribution. All units attached to these outlets must be auto-ranging
between 180 through 257 VAC, 50-60 Hz.
•
Power interruptions – The cabinet and its modules will withstand the following
applied voltage interruptions (with or without an integrated UPS):
•
Input transient – 50% of nominal voltage
•
Duration – one half cycle
•
Maximum frequency – once every ten seconds
•
Power failures – After a total power failure, the modules within the cabinet will
automatically perform a power-up recovery without operator intervention after power
is restored.