6 Hardware 6-13
6.8.1.5 DC Output: B12V-for Refrigeration and Fans
Output current:: 10A, Inrush current 14A, continuing 300ms
Output voltage : 11.8～12.8V
Output ripple noise: 140mVp-p
6.8.1.6 DC Output: C12V-for Pumps, Valves and Boards
Output current:: 4.7A
Output voltage: 11.8～12.8V
Output ripple noise: 140mVp-p
6.8.1.7 DC Output: 24V-for Motors and Boards
Output current:: 5 A
Output voltage: 23.5～25V
Output ripple noise: 140mVp-p
6.8.2 Protective Function of Power Supply Unit
6.8.2.1 Over-current Protection
All the output current have over-current protection
The over-current protection point is in the range of 105～140% of the normal output
current except the A12V&B12V. Make sure the A12V&B12V are safe and reliable
before the current is over the the over-current protection point
The status after protection: The statuses after protection are board-locked except
A12V which is the system-locked protection.
6.8.2.2 Over-volt Protection
All the output volts have the locked over-volt protection.
The protection point of the over-volt is 115-140% of normal volt.
The status after over-volt protection is just the same as the status after over-current
protection.
6.8.3 Block Diagram
Figure 6-8 shows the framework of the power unit.
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