3G5A2-RPT01-PE datasheet(71/182 Pages) OMRON

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The PC ignores all momentary power interruptions if the interruption lasts no

longer than 10 ms. If the interruption lasts between 10 and 25 ms, the interrup-

tion may or may not be detected. If the supply voltage drops below 85% of the

rated voltage for longer than 25 ms (less for the DC Power Supply Unit), a power

interruption detection signal is output and program execution is halted.

If power is not restored within 10 ms (the power retention time) after the power

interruption detection signal is output, the PC stops operating and all outputs are

turned OFF.

If after power interruption detection, power is restored within a period defined as

the momentary power interruption time (default value: 0 ms), the CPU will re-

sume operation. If the momentary power interruption time elapses and power

has not been restored, the CPU will begin execution of the power OFF interrupt

program if one has been programmed. The CPU stops operating after the lapse

of the power retention time (10 ms).

Note The momentary power interruption time can be set to between 0 and 10 ms. For

details, refer to the

CVSS Operation Manuals.

Caution

If a C500 Expansion I/O Rack is connected to the PC, the momentary power in-

terruption time setting is not effective and a power interruption of any length will

trigger shut down processing.

Automatic Recovery

Operation is resumed automatically when the voltage is restored to more than

85% of the rated value.

3-4-6 Current Consumption

The Power Supply Units are limited in the total current they can supply to Units

on the Racks. The following table shows the maximum current available on a

Rack for either model of Power Supply Unit. The available current shown in the

table is in addition to the current consumed by the Backplane, Power Supply

Unit, CPU, I/O Control Unit, I/O Interface Unit, and Peripheral Devices.

Rack

CV500-PS221/211

CVM1-PA208

CPU Rack

CV500 or

CVM1-CPU01-EV2

9.8 A max.

5.8 A max.

CV1000, CV2000,

CVM1-CPU11-EV2,

CVM1-CPU21-EV2

9.4 A max.

5.4 A max.

Expansion CPU Rack

11 A max.

7 A max.

Expansion I/O Rack

11 A max.

7 A max.

Calculate the current requirements for the Units on each Rack by adding up the

current consumption of each Unit mounted, excluding the Power Supply Unit,

CPU, I/O Control Unit, I/O Interface Unit, Remote I/O Slave Units, and Peripher-

al Devices (the power requirements for these Units have already been allowed

for). The total must not exceed the limit given above for the Rack.

The current consumption for the Expansion I/O Rack does not include the cur-

rent consumed by peripheral devices. The current consumed by peripheral

devices attached to the Expansion I/O Rack must be included when calculating

the total current consumption.

Power Supply Units

Section 3-4

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