Hardware
15
2.2.2
Calibration
ETAS provides a calibration service for correcting any current converter and
threshold offsets for the front panel LEDs.
The order data is as follows:
2.2.3
Overcurrent Protection of the Measure Outputs
The outputs (I
analog
, I
digital
and U
analog
) of theES4455.1 Load Board are
protected against shorts to +UBatt and against ±60 V.
2.3
Digital Current Signals
The current signal over a load can also be output digitally – the upper and
lower thresholds are set via the potentiometers “Threshold high Load_
n
” and
“Threshold low Load_
n
”.
Once the upper threshold has been reached, the digital signal assumes the
value “High” and retains this until the lower threshold is crossed.
The settable ranges are:
• 0...2.5 V for the lower threshold in accordance with 0 A...I
max
• 0...2.5 V for the upper threshold in accordance with 0 A...I
max
Fig. 2-3
Digitizing an Injection Signal
The thresholds set are verified at the front-facing connector (see "“Threshold
Calibration Connection” Connector" on page 19).
Order Name
Short Name
Order Number
Calibration Service for ES4455
K_ES4455
F-00K-106-386
Calibration Service for ES4450
K_ES4450
F-00K-106-174
Calibration Service for ES4451
K_ES4451
F-00K-106-385
Threshold_high
Threshold_low
Summary of Contents for ES4455.1
Page 1: ...ES4455 1 Load Board User s Guide ...
Page 10: ...Introduction 10 ...
Page 24: ...Technical Data 24 ...
Page 26: ...ETAS Contact Addresses 26 ...