VIPA HB130E SM, Manual

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Manual VIPA System 300V
Chapter 6 Analog Input Modules
HB130E - SM - Rev. 07/44 6-3
For analog signals you have to use isolated cables to reduce interference.
The cable screening should be grounded at both ends. If there are
differences in the potential between the cable ends, there may occur a
potential compensating current that could disturb the analog signals. In this
case you should ground the cable screening only at one end.
The analog input modules provide variant connecting possibilities for:
•
Current sensor
•
Voltage senor
•
Resistance thermometer
•
Thermocouple
•
Resistors
Note!
Please take care of the correct polarity when installing the measuring
transducer! Please install short circuits at non-used inputs by connecting
the positive contact with the channel ground of the according channel.
The analog input modules from VIPA do not have any measuring range
plug.
The modules are parameterized via the hardware configurator or during
runtime via SFCs.
The modules that are described in this chapter except the 331-1KF01 offer
diagnostics functions.
The following errors may cause diagnostics:
•
Error in the project engineering res. parameterization
•
Wire break at current measuring
•
Measuring range overstep
•
Measuring range shortfall
•
Common Mode Error
•
Lost process interrupt
•
Failure of the external power supply
For diagnostic evaluation during runtime, you may use the SFCs 51 and
59. They allow you to request detailed diagnostic information and to react
to it.
Principles
Cables for analog
signals
Connecting
test probes
Parameterization
Diagnostic
functions