ETAS ES4455.1, Руководство пользователя

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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