TOELLNER Electronic Instrumente GmbH
3
1.
Introduction
The Electronic Switch TOE 9260 is a device for time-based turning on and off of load and
signal currents. This device provides an electronic, unidirectional power switch as well as
four electronic bidirectional signal line switches. The power switch incorporates a selectable
load-parallel crossover for selective discharging of buffered loads.
A digital input signal can be used to generate on- and off-durations of any time down to the
microsecond range for both the power switch and the signal line switches.
By these features, the TOE 9260 especially is applicable for the following tests according to
the automotive standards LV 124 and LV 148:
•
LV 124,
E-10: Short interruptions
•
LV 124,
E-13: Pin interruption
•
LV 148, E48-09: Short interruptions
There are many other industry standards based on LV 124 and LV 148 like VW 80000,
GS 95024-2, VW 82148, etc. with power and signal line interruptions, where the Electronic
Switch TOE 9260 can be applied.
Subject of this document is how these tests are carried out by use of the TOE 9260,
especially under consideration of the following points:
•
Test assembly and wiring of the components
•
Choice of the right switch, i.e. power switch resp. signal line switch of the TOE 9260
•
Reference measurements according to the requirements of the LV 124-2013
1.1
Required test equipment
Commonly the following components are needed for the test assemblies:
•
DUT (Device under Test)
•
Power supply according to the requirements of the Device under Test
•
Electronic Switch TOE 9260
•
4x high current cable (cross section 16 mm²) with connector KBT6AR-N/16-S
(Manufacturer: Multi-Contact)
to connect the power supply and the DUT to the power
switch of the TOE 9260.
Note
Please note, that the connector KBT6AR-N/16-S can only be mounted to a cable by use of
special tooling, soldering is not possible.
The use of the following connection cables of length 1,20 m or 0,50 m
TOE 9260/22 (Red) and TOE 9260/23 (Blue) is recommended:
Item No.
Item name
TOE 9260/22
0.50 m connection cable with 1 safety socket, red
TOE 9260/23
0.50 m connection cable with 1 safety socket, blue
TOE 9260/24
1.20 m connection cable with 1 safety socket, red
TOE 9260/25
1.20 m connection cable with 1 safety socket, blue
•
Pulse source, e.g. Arbitrary Function Generator TOE 7761, or a DAQ-card with digital
outputs
•
PC as control device for the function generator or DAQ-card to generate the pulse
sequences especially for the tests LV 124 E-10 resp. LV 148 E48-09
•
Oscilloscope or fast data logger for evaluation of the measurement results
