Table 4-1: Front Panel Controls and Indicators

Number

Control/Indicator

Description

Section

 

 

 

 

4

CURRENT display

4 digit, 7 segment LED display. Normally displays the Output

 

 

 

Current. When the PREV button is pressed, the display indi-

 

 

 

cates the programmed setting of Output Current.

 

5

CURRENT indicator

Green LED, lights for Constant-Current mode operation

 

 

 

 

 

6

CURRENT control

High resolution rotary encoder for adjusting the Output Current.

5.2.2

 

 

Auxiliary Function:

7.2.4

 

 

1) Selects the Baud-Rate of communication port

5.15.2

 

 

2) Set desired mode of the Master Power Supply in

 

 

 

Advanced parallel operation.

 

7

OUT button

Main function: Output ON/OFF control. Press OUT to set the

5.6

 

 

output On or Off. Press to reset and turn On the output after

5.11

 

 

OVP or FOLD alarm events have occurred. Auxiliary function:

 

 

 

 

 

Selects between “Safe-Start” and “Auto-Restart” mod es. Press

 

 

 

and hold OUT button to toggle between “Safe-Start” and “Auto-

 

 

 

Restart”. The VOLT display will cycle between “SAF” and

 

 

 

“AUT”. Releasing the OUT button while one of the modes is

 

 

 

displayed, selects that mode.

 

 

 

 

 

8

OUT indicator

Green LED, lights when the DC output is enabled.

 

 

 

 

 

 

 

Main function: Go to local. Press REM/LOC to put the unit into

7.2.5

 

 

Local mode (REM/LOC button is disabled at Local Lockout

7.2.2

 

 

mode).

9

REM/LOC button

7.2.4

Auxiliary function: Address and Baud Rate setting. Press and

 

 

hold REM/LOC for 3 sec. to set the Address with the VOLTAGE

 

 

 

encoder and the Baud Rate with the CURRENT encoder.

 

10

REM/LOC indicator

Green LED, lights when the unit is in Remote mode.

 

 

 

 

 

 

 

Foldback protection control.

5.5

11

FOLD button

-Press FOLD to set Foldback protection to On.

 

-To release Foldback alarm even, press OUT to enable the out-

 

 

 

 

 

 

put and re-arm the protection.

 

 

 

-Press FOLD again to cancel the Foldback protection.

 

12

FOLD indicator

Green LED, lights when Foldback protection is On.

 

 

 

 

 

13

OVP/UVL button

Over Voltage Protection and Under Voltage limit setting.

5.3

 

 

-Press once to set OVP using VOLTAGE encoder (the current

5.4

 

 

display shows “OUP”)

 

 

 

 

 

-Press again to set the UVL using VOLTAGE encoder (the cur-

 

 

 

rent display shows “UUL”).

 

14

PREV button

Main function: Press PREV to display the Output Voltage and

 

 

 

Current setting. For 5 sec. the display will show the setting and

 

 

 

then it will return to show the actual Output Voltage and Cur-

 

 

 

rent.

 

 

 

Auxiliary function: Front Panel Lock. Press and hold PREV

5.17

 

 

button to toggle between “Locked front panel” and “ Unlocked

 

 

 

front panel”. The display will cycle between “LFP” and “UFP”.

 

 

 

Releasing the PREV button while one of the modes is displayed

 

 

 

selects that mode.

 

28

83-507-5002 Rev. B

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TDK 750W HALF RACK technical manual Auxiliary Function