ABB AC 31, Assembly And Operation Manual

Page: 50 / 165

Data Value
Resolution in bits:
-> Ranges ±10 V, 0 ... 10 V 12 bit plus sign
-> Ranges 0 ... 20 mA, 4 ... 20 mA 12 bit without sign
-> Range Pt100, Pt1000, Ni1000: 0.1 °C
Resolution in mV, μA:
-> Range ±10 V approx. 2.5 mV
-> Range 0 ... 10 V approx. 2.5 mV
-> Range 0 ... 20 mA approx. 5 μA
-> Range 4 ... 20 mA approx. 4 μA
Relationship between input signal and hex
code
-100 % ... 0 ... +100 % = 9400H ... 0000H ...
6C00H (-27648 ... 0 ... 27648 decimal)
Conversion error of the analog values due to
non-linearity.
Adjustment error on delivery and resolution in
the nominal range
Typ. 0.5 %, max. 1 %
Use as digital input:
-> Signal 0 -30 V ... +5 V
-> Undefined signal state +5 V ... +13 V
-> Signal 1 +13 V ... +30 V
Max. cable length
2-core shielded and conductor cross section >
0.14 mm²
100 m
CAUTION!
Risk of overloading the analog input!
If an analog current sensor supplies a current in excess of 25 mA for more than
1 second during initialization, this input is switched off by the module (input pro-
tection).
Use only sensors with fast initialization or sensors without current peaks higher
than 25 mA. If this is not possible, protect the input by connecting a 10-volt
zener diode in parallel to I+ and I-.
For further information, please refer to the existing documentation
System description Advant Controller 31.
Analog outputs
Data Value
Number of channels per device 4
Connections Connector X10 (terminals 3.5, 3.6, 7.5 and
7.6)
Reference potential AGND2 (terminals 3.5, 3.6, 7.5 and 7.6)
AC31 Adapters
Replacement devices: CPU > Replacement device 07KT9x-AD
2018/09/24 3ADR010122, 8, en_US 50