Novus DigiRail Connect DMIX DO ETH, Instruction Manual, Page: 9 / 34

NOVUS AUTOMATION 9/34
5.1.1 FLAGS A1 – A2
The flags A1 and A2 , when lit, indicate that the respective channel is enabled, not reflecting the condition or value of the signal present at its termi-
nals. In addition to indicating whether or not a channel is enabled, the flags also indicate when there is something wrong on the respective channel.
Improper conditions on the input channels are called "Error Condition" and are showed in specific paragraphs of this manual.
5.1.2 ANALOG INPUT ERROR CONDITION
It is called an "Error Condition" every condition of use or improper operation for the DigiRail Connect input channels. Many of the improper condi-
tions are identified and then flagged by the blinking of the light signal of the respective channel.
The error conditions of the analog inputs are showed in
Table 03 .
INPUT TYPE ERROR CONDITIONS
Temperature Sensors
•
Measures beyond the limits of the operating range;
• Open input / open signal.
0-20 mA
•
Measures above 22 mA (
±
0.5 mA) (*).
0-5 / 0-10 V
• Measures above 10% of the upper limit (*);
•
Reverse polarity.
4-20 mA
•
Measurements below 3.5 mA (
±
0.2 mA);
• Measures above 22 mA ( ± 0.5 mA);
•
Open input / open signal;
•
Reverse polarity.
Table 03 – Analog input error conditions
(*) No error indication when sensor is in open input / open signal.
5.1.3 CONNECTIONS OF ANALOG INPUTS
Fig. 10 - Pt100 / Pt1000 Fig. 11 – T/C
Fig. 12 – 4-20 mA / 0-20 mA Fig. 13 – 0-5 V / 0-10 V