I/O Module Configuration; Analog Inputs - ABB SM2000 User Manual

...4 CONFIGURATION

4.7 I/O Module Configuration

System Configuration
Common
Configuration
Group 2
Channels Modules
Note. The instrument detects the type of module fitted in each position automatically.

4.7.1 Analog Inputs

A:-Analog i/p B:-Relay
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
999.0
Input A6
66
Process Group 1 Process
Group 1 Channels Group 2
I/O Functions
Fig. 4.16 I/O Module Configuration
C:-Hybrid
1.0
0.0
±0.000
0.950 to 1.050
I/O Module Configuration
A:- Analog I/P
I/O
Modules
Set the Mains rejection frequency used to filter electrical
noise induced on the signal lines by power supply cables.
Note. If the Mains rejection frequency is changed, the
instrument must be powered down and powered up again in
order to restore the inputs.
Input Adjustment
Inputs can be fine-tuned to remove process offset errors or
system scale errors.
Note. Input Adjustment frames appear only if
recording is enabled during configuration – i.e. 'Disable
recording in configuration' is not selected on entry to the
Configuration level – see Fig. 4.2.
Note.
(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.
OK
Reset adjust
Resets the Offset adjust to zero and the Span adjust to 1.
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.
B: Relay C:-Hybrid
Alarm 1.1A, Positive
Relay B1
Totalizer 1.2 Intermediate,
Relay B2
None, Positive
Relay B3
None, Positive
Relay B4
None, Positive
Relay B5
Relay B6 None, Positive
Changes to the Analog Input Type