ABB COMMANDER 1900 Series Programming Manual page 6

...3 BASIC CONFIGURATION LEVEL
3.1 Set Up Input (Process Variable, Remote Set Point and Position Feedback)
Information.
• Universal inputs – mV, mA, V, THC, RTD and resistance.
• Internal cold junction compensation.
• Linearization – of temperature sensors to allow use of non-linearizing transmitters or any electrical input.
• Programmable fault levels and actions.
• Digital filter – reduces the effect of noise on inputs.
Example A – setting up:
• a current input of 4 to 20 mA
• displaying a range of 0 to 200psi
• a fault detection level 10% above 200psi (engineering/display range) and 10% below 0psi (engineering/display range)
• in the event of a fault being detected and/or the fault detection level being exceeded the process variable is driven
downscale.
Input
Linearizer
Type Type
5/2
3/2
√
RTD
RTD
THC N
THC
THC B
Current
THC E
Voltage
THC J
Millivolts
THC T
Low resistance
THC S
High resistance
THC R
THC K
None
Example B – setting up:
• a Type K thermocouple
displaying temperature in °F
•
• displaying a range of 0 to 2000°F
• a fault detection level 10% above 2000°F (engineering/display range) and 10% below 0°F (engineering/display range)
• in the event of a fault being detected and/or the fault detection level being exceeded the process variable is driven upscale.
Input Linearizer
Type Type
5/2
3/2
√
RTD
RTD
THC THC N
THC B
Current
THC E
Voltage
THC J
Millivolts
THC T
Low resistance
THC S
High resistance
THC R
THC K
None
4
Electrical
Temp. Units
Range
20.0
(Input Range High)
°F
°C
None
4.0
(Input Range Low)
Engineering Range
Temp. Units
(Display Range)
2200
°F
°C
None
–200
Engineering Range
(Display Range)
220
Fault Detection
10 %
Levell
200
0
Fault Detection
10 %
Level
–20
Broken Sensor
Protection Drive
Fault Detection
10 %
Levell
2000
Downscale
Upscale
0
Fault Detection
10 %
Level
Broken Sensor
Programme
Protection Drive
Filter
Value set to 0
Value set low
Downscale
Upscale
Value set high
Programme
Filter
Value set to 0
Value set low
Value set high