AI 8 01
3 Product Description
HI 800 195 E Rev. 2.00
Page 11 of 38
3 Product
Description
The AI 8 01 is a module with 8 analog inputs and is used for the modular F60 system. The
inputs are galvanically separated to the I/O bus.
The module can be inserted in the F60 subrack's slot 3...8. Slots 1 and 2 are reserved for the
power supply module and central module, respectively.
The module is TÜV-certified for safety-related applications up to SIL 3 (IEC 61508, IEC 61511
and IEC 62061), Cat. 4 and PL e (EN ISO 13849-1) and SIL 4 (EN 50126, EN 50128 and
EN 50129).
Further safety standards, application standards and test standards are specified in the
certificates available on the HIMA website.
3.1
Safety Function
The module is equipped with safety-related analog inputs.
3.1.1
Safety-Related Analog Inputs
The analog inputs can be configured for 8 unipolar or 4 bipolar functions.
The module is intended to measure the voltage on the inputs.
To measure the current on the inputs, connect a resistor of up to 500
in parallel to each input.
With smaller shunts, the measurement range is spread (less resolution), and zero point errors
increase by the spreading value.
The following input values are available:
Range of values in the application
Input
channels
Polarity
Current
Voltage
FS1000
1)
FS2000
1)
Safety-
related
accuracy
8
Unipolar
-10…+10 V
-1000…+1000
-2000…+2000
1 %
8 Unipolar
0…20
mA
0…1000
3)
0…2000
3)
1
%
8 Unipolar
0…20
mA
0…500
2)
0…1000
2)
4
%
4
Bipolar
-10…+10 V
-1000…+1000
-2000…+2000
1 %
1)
To specify when selecting the device type in the programming tool
2)
250
with external shunt, HIMA no.: 00 0710251
3)
500
with external shunt (accuracy 0.05%, P1W). No longer available from HIMA.
Table 4:
Input Values for the Analog Inputs
The module's value range can be configured to 1000-digit resolution (FS1000) or 2000 digits
(FS2000), when the device type of the F60 modules (AI 8 01 FS1000 or AI 8 01 FS2000) is
selected in the programming tool.
If an open-circuit occurs (the line is not monitored), any input signals is processed on the high-
resistance inputs. The value resulting from this fluctuating input voltage does not correspond to
the process values. With voltage inputs, the channels must thus be terminated with a 10 k
resistor. The internal source resistance must be taken into account (
≤
500
). For a current
measurement with the shunt connected in parallel, the 10 k
resistor is not required.
i
Each unused input channels must be short-circuited to ground (I-).
The max. permitted voltage between the analog terminals is ±13 V.
The analog inputs are designed to retain the metrological accuracy for 10 years. A proof test
must be performed every 10 years.
Summary of Contents for HIMatrix
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