Meyer Sound MM-4 Instructions d'exploitation télécharger pdf (Page 13)

MM-4XP OPERATING INSTRUCTIONS

■ Burst Current — The maximum rms current during a

period of around one second. The Burst Current is used

as a rating for magnetic breakers. It is also used for cal-

culating the peak voltage drop in long AC cable runs

according to the following formula:

V pk (drop) = I pk x R (cable total)

■ Ultimate Short-Term Peak Current — A rating for fast-

reacting magnetic connectors.

You can use the following table as a guide for selecting

cable gauges and circuit breaker ratings for the system’s

operating voltage.

The minimum electrical service amperage required by an

MPS-488 is the sum of the Maximum Long-Term Continu-

ous Current for all MM-4XPs connected to the MPS-488. An

additional 30 percent above the minimum amperage is rec-

ommended to prevent peak voltage drops at the service

entry.

NOTE: For best performance, the AC cable

voltage drop should not exceed 10 V, or

10 percent at 115 V and 5 percent at 230 V. Make

sure that even with AC voltage drops that the AC

voltage always remains within the operating window.

SAFETY ISSUES

Pay close attention to these important electrical and safety

issues.

■ The MPS-488 requires a grounded outlet.

■ Do not use a ground-lifting adapter or cut the AC cable

ground pin.

■ Keep all liquids away from the MPS-488 to avoid hazards

from electrical shock.

■ Do not operate the unit if the power cables are frayed or

broken.

Current Draw for MPS-488 with Eight MM-4XPs

Current Draw

(Eight MM-4XPs)

115

V AC

230

V AC

100

V AC

Idle Current 1.16 A rms 1.00 A rms 1.26 A rms

Maximum Long-Term

Continuous Current

2.20 A rms 1.38 A rms 2.60 A rms

Burst Current 3.6 A rms 2.2 A rms 4.3 A rms

Ultimate Short-Term

Peak Current

8.8 A peak 4.6 A peak 9.6 A peak

Earth ground

Chassis ground

1 2 ... 8 9 10 11 12 13 14 15 16 17 18 ... 31 32

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Meyer Sound MM-4 Instructions d'exploitation Page 13

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