Agilent Technologies 6634A Instrukcja Użytkownika Pobierz pdf (Strona 62)

Connecting the DUT Power Supply Cables

Connecting the Overvoltage Shutdown Cables

This section describes how to connect the overvoltage

shutdown cables for 6624A and 6621A DUT Power

Supplies. (The 6634A/B and 6642A do not have

overvoltage shutdown terminals.)

Each output of the 6624A and the 6621A power

supplies has two overvoltage terminals. These terminals

are labeled

+OV and -OV. By connecting the overvoltage

terminals in parallel, an overvoltage shutdown on any

one output will trigger an overvoltage shutdown on the

remaining outputs. Each 44940A (6624A) includes 4

cables (03066-61622) for this purpose. Each 44941A

(6621A) includes 2 cables (03066-61622). Use the

guidelines below to connect the overvoltage cables.

■ In all cases, ensure that the brown wire is

connected to the +OV terminal and the white wire

is connected to the -OV terminal.

■ On each supply, connect the overvoltage terminals

for output 1 to the overvoltage terminals of output

■ On each 6624A supply, connect the overvoltage

terminals for output 3 to the overvoltage terminals

for output 4.

■ Interconnect (chain) the overvoltage terminals for

output 2 of each 6624A connected to ASRU ports

1 through 4.

■ Interconnect (chain) the overvoltage terminals for

output 2 of each 6624A connected to ASRU ports

5 and 6. Do not interconnect the chains for

supplies connected to ASRU ports 1 through 4

and supplies connected to ASRU ports 5 and 6.

■ Interconnect (chain) the overvoltage terminals for

output 3 of each 6624A connected to ASRU ports

1 through 4. Do not interconnect the chains for

output 3 and output 2.

■ Interconnect (chain) the overvoltage terminals for

output 3 of each 6624A connected to ASRU ports

5 and 6. Do not interconnect the chains for

supplies connected to ASRU ports 1 through 4

and supplies connected to ASRU ports 5 and 6

and do not interconnect the chains for output 3

and output 2.

■ Interconnect (chain) the overvoltage terminals for

output 2 of each 6621A connected to ASRU ports

1 through 4.

■ Interconnect (chain) the overvoltage terminals for

output 2 of each 6621A connected to ASRU ports

5 and 6. Do not interconnect the chains for

supplies connected to ASRU ports 1 through 4

and supplies connected to ASRU ports 5 and 6.

■ Do not interconnect chains of different supply

types.

■ Connect extra cables in parallel on the back of

supplies, so they are available if more supplies are

added in the future.

Figure 28 on page 61 through Figure 35 on page 68

illustrate examples of how to connect the overvoltage

terminals using 6624A, 6621A, and 6634A/B supplies.

Figure 35 on page 68 illustrates how to connect the

terminals using four 6624A supplies connected to ports

1 though 4 in four modules and two 6621A supplies

connected to ports 5 and 6. The overvoltage cable

1 2 ... 57 58 59 60 61 62 63 64 65 66 67 ... 81 82

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