Instruction manual

Section 4
Operating instruction
4.1 INTRODUCTION
4.2 FRONT PANEL DESCRIPTION
4.3 REAR PANEL DESCRIPTION
4.4 POWER ON CHECK
4.5 OPERATING INSTRUCTIONS IN LOCAL MODE
4.6 OPERATING INSTRUCTIONS IN ANALOG REMOTE INTERFACE
4.7 OPERATING INSTRUCTIONS IN DIGITAL INTERFACE
4.8 TRIP INDICATIONS
4.1 INTRODUCTION
The VSP series Model is a variable switch mode power supply to provide wide
range of DC supply from 0 to full-scale specified voltage. This chapter explains the
operating procedure of the unit. The operation is very simple by providing POT control
for voltage, current limit and over voltage protection limit and 8 way DIP switch along
with 25 Pin D type connector for the remote programming interface.
Optional RS232 interface or GPIB interface can be provided as per the order
placed. In case of RS232 interface, a slide switch no. 7 on 8 pin DIP switch array on the
rear panel facilitates either LOCAL/ RS232 communication interface or Analog pro-
gramming.
The unit is internally fan cooled. The air inlet vents are provided on the front panel.
The air outlet is a rectangular slotted area on the 1U high rear panel, and is located
between the A.C. input and D.C.output connectors.
The instrument front panel and rear panel are described first in detail, explain-
ing the layout, identification, function and usage of each item on the panel. The Turn-
on sequence and the procedure to use the major functions and operation of unit in
digital interface are also explained. At the end all the ALARM indications, errors and
warning signals are explained. In the same section procedures to clear the TRIP and
ALARM conditions are discussed.
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