Atec Yokogawa-DLM4000 - Manual (Page 2)

For today’s challenging power electronics, automotive electronics and mechatronics:
Only one scope will do – the world's only eight-channel oscilloscope - the DLM4000.
Two USB Terminals on
Front Panel
four-direction
selection button
Jog shuttle and
rotary knob
Eight Analog Input Channels
(Yokogawa Probe Interface Compliant)
Additional 16-bits of
Input Logic,
for a total of 24-bits
(Optional)
12.1 inch
6.6
kg
Modest 178 mm Depth
Half of the former model DL7480
Channel 8 is Convertible to
8-Bit Logic Input
(Standard Feature)
The portable eight-channel DLM4000 is
the daily instrument of choice.
12.1” LCD enables eight waveforms to be easily observed. Portable
178mm
355mm
This combination with the optional
PBDH0150 High-Voltage Differential Probe,
creates a compact and
multi-channel floating voltage and
current measuring system.
Whole-system measurement is impossible
with a four-channel scope; the real difficulty
is measuring the timing between IGBT gate
signals within the inverter. Voltage and
current measurements between 3 phases
and the IO of the motor driver IC is a very
challenging test with a four-channel scope.
The truly practical solution is an
eight-channel MSO.
The additional logic inputs of a four-channel
MSO mixed-signal oscilloscope provides
enough channels, but this method has a
blind-spot. Digital waveform analysis using
logic inputs alone cannot reveal anomalies
such as voltage drift, noise, distortion or
ringing, and measure rise-fall times. ECU
testing requires stringent examination of all
digital waveforms – and analog input
channels are the best tool for the job.
A modern multi-channel recorder provides
enough channels and long record times;
however, due to modest sample and update
rates, the recorder is unlikely to be
successful at measuring high-speed
waveforms in the vicinity of CPUs & FPGA
such as communication signals,
high-frequency noise, and fast waveform
anomalies.
When four channels are not enough, it is
common to connect two separate four
channel scopes. This approach is not only
cumbersome but inter-waveform timing can
lack credibility and post-processing of the
waveform data files is twice as much work.
The sensible approach is an eight-channel
MSO.
Electronic Control Unit & Mechatronic Test
Numerous I/O analog, digital, and serial-bus waveforms
surrounding the Electronic Control Unit (ECU) must be
measured. The DLM4000 offers ample channel-count
and architecture to monitor eight analog channels and up
to 24-bits of logic input while simultaneously performing
protocol analysis such as UART, I2C, SPI, CAN, LIN and
FlexRay. The DLM4000 can speed up the the R&D
process. Four channels are not enough.
During the evaluation of a power supply design, it is
necessary to measure noise, ripple, voltage margin and
current , as well as timing margins and the jitter of the
startup-shutdown sequences. As the number of waveforms
in modern power supply designs is increasing, especially for
intelligent digitally-controlled power supplies, battery
management systems, and wireless power supply systems -
a four-channel oscilloscope is not enough.
Limitation of 4ch Scope
Limitation of 4ch MSO
Motor Control & Inverter Circuit Development
Key to efficient and reliable high-performance
electric motors is the modern inverter design, or
‘Intelligent Power Module’. Multi-channel,
high-speed waveform measurement is an absolute
necessity. Four channels are simply not enough.
Boasting eight true analog inputs, the DLM4000
empowers today’s engineer with a convenient and
comprehensive measurement system.
Example: 3 voltage & 3 current measurements of a 3-phase motor
Measurement of the gate-drive signals of six IGBTs within the inverter
Troubleshooting, total system test
For laboratory and field troubleshooting, the ability to
measureas many suspicious signals as possible enables
quick solutions to be found.
The measurement time for system testing is often very
limited.
The 8 channels of the DLM4000 provide the capability to
measure more signals at one time, both now and to meet
future needs.
Limitation of Recorder
Limitation of two
4 channel Scopes
Power Supply & Power Converter Test
Example: Start-up sequence test of multi-output power supply or Converter
Primary /secondary voltage/current and power supply control signal
Example: Analog I/O and serial bus controller signals
Stringent realtime test of digital waveforms in the analog domain.
Example: Troubleshooting of infrequent problems
Comprehensive stability test of the whole system
8
ch
8
ch
4
ch
8
ch Recorder
8
ch
4
ch
4
ch
CAN / LIN / FlexRay
UART / I
2 C /SPI
former model
DL7480
Typical Demanding Applications for the Eight-Channel DLM4000 Typical General Applications for the Eight-Channel DLM4000
Product Introduction
Functions & Featur
es
Options &
Accessories
Oper
ability & Softw
ar
e
Specifications
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