Chapter 2: General Operation; Grounding Requirements; Ac Line Power Requirements - Newport LDC-3706 Series User Manual

This chapter is an overview of the operation of the LDC-3706 Laser Controllers. It offers
instructions for connecting the laser to the current source and temperature controller and
describes powering up the instrument. This chapter also contains step by step procedures that
teach the user how to operate the controller in Constant Current Mode, Constant Power Mode,
and to operate the temperature controller in Constant Temperature Mode. ILX recommends that
the contents of this chapter are reviewed at a minimum before operating the new controller.

Power requirements

Front panel operation

General operating procedures

Grounding Requirements

The LDC-3706 Laser Controller comes with a three conductor AC power cable. The power cable
must be plugged into an approved three-contact electrical outlet or used with a three-contact to
two-contact adaptor with the grounding wire connected to an electrical ground (safety ground).
ILX Lightwave recommends connecting the instrument only to properly earth grounded
receptacles. The power cord connector and power cable meet IEC safety standards.

AC Line Power Requirements

The LDC-3706 Laser Controller can be configured to operate at nominal line voltages of either 115
VAC or 230 VAC. The user may change the line voltage by a switch on the rear panel. These line
voltages may vary from nominal by no more than ±10 % and the frequency of the AC source must be
50 – 60 Hz. For input voltages below 100VAC, a de-rating of 0.3 V and 0.4 Amps per input AC volt
applies down to a minimum of 90 VAC input voltage.
Check the power switch on the rear panel is in the proper position prior to power up.
Damage to internal fuses and other internal circuitry may occur if the wrong line voltage is
selected.
December 2019
General Operation
11
Chapter 2:
LDC-3706 Series Laser Controller