Technical data

Manual VIPA System 200V Chapter 4 Digital output modules
HB97E - SM - Rev. 09/19 4-31
A diagnostic is an error message to the CPU. If diagnostic interrupt is
enabled by parameterization, the following events may release a diagnostic
interrupt:
• Overcurrent recognition channel 0
• Overcurrent recognition channel 1
• Overheat recognition for both channels
• Missing or failure of load voltage
The error events overcurrent and overheat recognition may be activated
respectively deactivated by the parameterization.
With a diagnostic 10bytes are transferred to the CPU.
Within the CPU you may react to the diagnostic by an appropriate program.
Details may be found at "Diagnostic data".
For each channel the module has a configurable software dimmer function
to avoid a step change of the load current. The software dimmer function
transforms a step change of the load current into a slow dim up or down of
the load.
By means of the software coefficient you may determine a constant rate of
change for the dimming operation.
The software coefficient results from the desired time for dimming from 0%
to 100% and the period duration of the load voltage. It is valid:
P
time
n
⋅
=
2
with n = Software coefficient (1...255)
time = desired time for 0%...100% in s (max. 10s)
P = Period duration of the load voltage in s at f = 47...63Hz
A higher software coefficient results in a slower slew rate of the dimmer
function.
For each channel the behavior of the module at a CPU STOP may be
configured here. You may either keep the last value or switch a substitute
value. This may be defined at substitute value.
Diagnostic interrupt
Software coefficient
Behavior at CPU
STOP,
substitute value