Input Circuit Current Capacity - Toshiba VP 300 Installation Instructions Manual

Power
It is recommended to power the VP 300 from a dedicated, separate circuit. If this
Requirements
is not possible, make sure the circuit is free of large motorized equipment, such
as copy machines.
A power circuit that is compatible with the input voltage and frequency rating of
the VP 300 must be provided. The power circuit must have adequate current
rating, and must be protected by a circuit breaker. Check the voltage rating
marked on the power line filter where the power cord connects to the VP 300.
The voltage rating indicates the VP 300 cabinet input rating.
Table 3-1 indicates the input circuit current capacity that is to be supplied for a
dedicated circuit.
To conform to the safety agency grounding requirements, use the power cord
provided. This power cord complies with the following UL requirement:
"An equipment grounding conductor that is not smaller in size than the
ungrounded branch-circuit supply conductors, is to be installed as part of the
circuit that supplies the product or system. Bare, covered or insulated grounding
conductors are acceptable. Individually covered or insulated equipment
grounding conductors shall have a continuous outer finish that is either green,
or green with one or more yellow stripes. The equipment grounding conductor is
to be connected to ground at the service equipment."
Verify the wall power outlet conforms to the following UL requirement:
"The attachment-plug receptacles in the vicinity of the product or system are all
to be of a grounding type, and the equipment grounding conductors serving
these receptacles are to be connected to earth ground at the service equipment."
Calculating Input Power Requirements
The following are guidelines for calculating the input power requirements of a
VP 300 system.
If the VP 300 is powered by an AC UPS or a –48 VDC source, the input power
requirement should be calculated to ensure that the correct capacity power
source is chosen. The power requirements depend upon the system's
configuration, since a fully populated cabinet requires more power than a
minimally configured cabinet. The size of the AC UPS or DC source must be
chosen to match the maximum size configuration expected for each installation.
Table 3-1 Input Circuit Current Capacity
Input Voltage Frequency Range
120 VAC
240 VAC
–48 VDC
INSTALLATION
Rated Input
Current
50-60 Hz
50-60 Hz
DC
Toshiba VP Systems Release 7.1
3-5
15A
10A
30A
July, 1994