I/O Module Configuration; Analog Inputs - ABB SM1000 User Manual

4.7 I/O Module Configuration

System Configuration
Common
Group 1
Channels 1.1 - 1.6
Group 2
Channels 2.1 - 2.6
Functions
I/O Modules
Exit
Note. The instrument detects the type of module fitted in each position automatically.

4.7.1 Analog Inputs

A:-Analog i/p
50 Hz
Mains rejection frequency
999.0
Input A1
A1 Input Adjust A1 Input Adjust
Actual Value
Desired Value
Reset Adjustment
Offset Adjust
Span Adjust
999.0
Input A2
Input A6
Fig. 4.17 I/O Module Configuration
1.0
0.0
±0.000
0.950 to 1.050
999.0
I/O Modules
A:- Analog i/p C: Relay
Relay B1
Relay B2
Relay B3
Relay B4
Relay B5
Relay B6
Set the Mains rejection frequency used to filter electrical
noise induced on the signal lines by power supply cables.
Input Adjustment
Inputs can be fine-tuned to remove process offset errors or
system scale errors.
Note. Input Adjustment frames only appear if
recording is enabled during configuration – i.e. the 'Disable
recording during configuration is not selected on entry to the
Configuration level.
Note. Changes
(Section 4.6.2) must be saved to the current configuration
before commencing input adjustment.
Actual value / Desired value
1. Adjust the process or simulated input signal to a known
value below 50% of the engineering range.
2. If the 'Actual value' (in engineering units) is different from
expected, set the 'Desired value' to the correct value.
3. Repeat steps 1 and 2 for a value above 50% of the
engineering range.
4. Repeat steps 1 to 3 for each input.
Reset adjust
Resets the Offset adjust to zero and the Span adjust to 1.
OK
Offset adjust / Span adjust
These are calculated values applied to the raw input signal.
Cannot be adjusted by the user.
Note. If simulating thermocouple inputs, connect the
millivolt source using appropriate compensating cable – see
Section 5.4.2. For 2-lead resistance thermometers, either
connect the resistance box at the sensor end of the leads or
add the lead resistance to the calibration values.
4 CONFIGURATION...
Alarm 1.1A, Positive
Totalizer 1.2 Intermediate,
None, Positive
None, Positive
None, Positive
None, Positive
to the Analog Input Type
63