EPSON Perfection 610

Rev. B

2.1.3 Power Supply Circuit

Power supply circuit board in this scanner generates direct current necessary for driving the controller board and scanner engine.

See Table 2-1and Table 2-2for the power supply circuit board specifications and the protection circuits for each output voltage/current, respectively. Figure 2-5shows the power supply circuit diagram.

Table 2-1. Power Supply Circuit Board Specifications for Each Destination

Specification

 

Unit Part No.

 

Fuse

 

 

 

 

 

100 -120 VAC Range

 

2031592

 

2.5 A / 125 VAC

 

 

 

 

 

220 -240 VAC Range

 

2031593

 

T2.5AH / 250 VAC

 

 

 

 

 

Table 2-2. Protection Circuits for Output Voltages/Currents

Output

 

Output

 

 

Over Current Protection

 

 

Over Voltage Protection

Voltage

 

Current

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5 VDC

 

1.2A

 

The current is held 1A or less by the

 

Shut down.

 

 

 

 

 

fold-back characteristic.

 

• To restore, turn the scanner off and

 

 

 

 

Recovers automatically*.

 

 

then back on.

 

 

 

 

 

 

 

• The protection circuit becomes active

 

 

 

 

 

 

 

 

when the voltage rises to 5.5 - 7.5

 

 

 

 

 

 

 

 

VDC.

 

 

 

 

 

 

 

 

 

12 VDC

 

0.2A

 

The current is held 0.5 or less by the

 

Shut down.

 

 

 

 

 

fold-back characteristic of the

 

• To restore, turn the scanner power off

 

 

 

 

 

generator.

 

 

and then back on.

 

 

 

 

Recovers automatically*.

 

• The protection circuit becomes active

 

 

 

 

 

 

 

 

when the voltage rises to 14 -17 VDC.

24 VDC

 

0.7A

 

Shut down.

 

Shut down.

 

 

 

 

• To restore, turn the scanner power off

 

• To restore, turn the scanner power off

 

 

 

 

 

and then back on.

 

 

and then back on.

 

 

 

 

 

 

 

• The protection circuit becomes active

 

 

 

 

 

 

 

 

when the voltage rises to 28 -33 VDC.

 

 

 

 

 

 

 

 

 

*: Recovers within 5 minutes.

NOTE: If any of the outputs is shut down, all the other outputs are also shut down.

Operating Principles

Engine Mechanism

18

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Image 18
Epson 610 manual Power Supply Circuit, Protection Circuits for Output Voltages/Currents, Specification Unit Part No Fuse