TDK Lambda | Z+Low Voltage User Manual

CHAPTER 6: REMOTE ANALOG PROGRAMMING

6.1 Introduction The Rear Panel connector J1 allows the user to program the power supply output voltage and current limit with an analog device. J1 also provides monitoring signals for output voltage and output current. The programming range and monitoring signals range can be selected between 0-5V or 0-10V using the Front Panel Menu Subsystem Level.

Subsystem Level

Function Level

Display

Display Parameter Level

Display

Description

Front Panel (Digital)

     

Parameter settings in Analog/ Digital control mode, Voltage channel. Parameter settings in Analog/ Digital control mode, Current channel. Control by external Voltage/ Resistor, Range 5/10

Voltage limit source

Ext. Voltage Ext. Resist.



Front Panel (Digital)

SET



Current limit source

Ext. Voltage Ext. Resist.



Source and monitor range

5/10 (V/KΩ) range

NG



Table 6-1: MENU. Analog Programming Setting

CAUTION: COM (J1-7,9) andVPGM_RTN (J1-12) terminals of J1 are connected internally to the -Sense potential (-S). Donot connect these terminals toanypotential other than -Sense (-S), as itmaydamage thepower supply.

6.2 Local/Remote Analog Control Contact J1-1 (Fig.4-3, item 1) accepts TTL signal or Open-Short contact (Referenced to J1-7,9) to select between Local or Remote Analog programming of the output voltage and current limit. In Local mode, the output voltage and current limit can be programmed via the front panel Voltage and Current encoders or via the Communication interface. In Remote Analog mode, the output voltage and current limit can be programmed by analog voltage or by programming resistors via J1 contacts 6 and 5. Refer to Analog Programming Setting Table 6-2. 6.3 Local/Remote Analog Indication Contact J1-4 (Fig.4-3, item 4) is an open collector output that indicates if the power supply is in Local mode or in Remote Analog mode. To use this output, connect a pull-up resistor to a voltage source of 30Vdc maximum. Choose the pull-up resistor so that the sink current will be less than 5mAwhen the output is in low state. J1-4 signal will be low if J1-1 is low and at least one of Analog control modes are selected. Refer to Analog Programming Setting Table 6-2.

J1-1 LOC/REM SELECT

Front Panel selection Front Panel selection

J1-4 LOC/REM MON

OPEN ”1”

Not applicable

Not applicable

Open

Open

F.PAN F.PAN

F.PAN

E.uOL or E.RES

0~0.6V 0~0.6V 0~0.6V

TTL ”0” or Short

E.uOL or E.RES E.uOL or E.RES

f.PAN

E.uOL or E.RES

Table 6-2: Local/Remote Analog Control and Indication

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