Atec NSG600 User Manual

I

nterference Simulator System

NSG 600

This very versatile system provides for the simulation

of the most varied transient conditions which occur in
AC and DC mains, but also has facilities to permit the
application of transients without supply voltage.
The system consists of a main frame and various plug­i

n units which generate the specific disturbances.

The basic equipment contains:

- Main frame unit with centralized power supply and
control for 1 to 4 plug-in units.

- Microprocessor controlled function keys and LCD
display.

- Connection to the unit under test and pulse output.

- RS 232-C interface for computerized remote con­trol.

The system and plug-in unit functions are pro­grammed on the control panel and remain stored for

l

ater recall when required.
Standard functions are preprogrammed ex works and
may be recalled or modified by use of the front panel
key controls. The LCD display supports the dialogue

with the user when setting the test sequences and
shows the device status continuously.

The power electronics of the various test modules
(

mains failures, interference pulse generators etc) are

i

ncorporated in the plug-in units. These units are
i

nserted from the rear into the main frame and are

automatically connected to the control electronics and
to the connector for the equipment under test. The

plug-in units have facilities to provide connections for
additional devices such as variac, artificial mains,

3-phase extensions etc.
The modular construction of the NSG 600 test system

allows for the assembly of individual test systems.
With further plug-in units and options it promises to
meet most future user requirements for interference
simulation.
Complete and complex test sequences, according to
various standards, may be run without changing test
generators or without disrupting the power to the
equipment under test.
A serial RS 232-C interface permits control of all sys­tem functions by means of an external computer. The
computer also allows the dynamic parametering of the
test procedure and the automatic logging of test pro­cesses and results, including failures of the unit under
test.
The NSG 600 system is also especially suitable for
automatic final tests.
I

n critical cases an opto-link option may be used to
ensure undisturbed operation of the computer con­nected to the remote socket.

By use of a converter remote control is also possible

via a GPIB (IEEE 488) Controller.

Examples of software and test programmes for MS-

DOS are available to help users.

Plug-in units
NSG 603 Simulator for AC/DC mains voltage fluctu-

ations and interruptions.

NSG 622

Additional types of plug -in units for tests and require-

ments according to various standards (Burst, Mil, etc)
are under development.

Simulator for fast interference pulses and
medium energy interference pulses.

NSG 600

Technical Data

System supply

- 110/220 V (± 20%) 50/60 Hz
switchable on main frame,

connection via 6 A equipment plug

EUT supply

- 15 + 264 VAC

15 + 65 Hz/16A max

65 + 500 Hz/6 A max

- 5 + 50 VDC/16A max

- Connection via 16A equipment plug

- Decoupled against generated transient
pulses being fed onto the supply
network

Test supply output

- Supply voltage with the selected inter-

ference superimposed via the mains

socket (country specific)
and safety banana plugs

HV pulse output

- Pulses without supply voltage:
Fischer 5 kV coaxial socket
(e. g. for data line coupling devices)

Remote control

- RS 232-C interface with supply for
opto-link: Cannon 25 pol.

Plug-in outfit

- 1 to 4 pieces

Dimensions

- Width 448 mm
(

mounting in 19' rack possible)
Height 266 mm
Depth 455 mm (without handles)

Weight approx 20 kg

Basic equipment NSG 600

Accessories

Order no.
402-251

402-227
431-958

402-089
156-155

(not included)

Measuring adapter 1000 : 1 with con­nections for oscilloscope (For other

types than NSG 600-01 additionally
adapter 402-270 is necessary)
Safety banana plug set

1

pair coaxial cables, 0.3 m, with
Fischer HV plug
1

pair cables, 1 m, with HV plugs and
banana plugs 4 mm
HV plug for cable 0 4.3 mm

I

NA 302

I

NA 303

I

NA 304

I

nterface RS 232-C - - IEEE 488
GPIB
Opto-link option
10 m, with power supply 230 VAC

Opto-link

10 m, with power supply 110 VAC

option

With the NSG 603 plug-in unit interruptions and vol­tage fluctuations on AC and DC mains can be simu­l

ated in accordance with generally known standards.
Thanks to the use of state of the art semiconductor
technology, power-MOS-FETs and microprocessor
control, supply dropouts can be inserted at any
desired phase angle. The respective times for repeti­tion, drop out time and phase displacement can be
programmed by the decimal keyboard and LCD dis­play on the main frame or via remote control equip-

ment.

For voltage variations a second voltage source (e. ~.

motorized Variac, electronic AC-source, DC supp y
equipment) is connected on the rear side. A control
output 0 + 10 VDC controls the additional source

adjusting the outputs to the desired value, pro­grammed on the main frame-unit.

Provision has been made on this equipment for the
connection of a future 3-phase extension and an

external switch with high breaking capacity.
The system has automatic overload protection to pre­vent damage to the NSG 600 from failure in the equip-

ment under test.