Digital Inputs; Rtd - ABB REF 541 Product Manual

38
Feeder Terminal
Table 10: Digital inputs
Power supply version
Input voltage, dc
Operating range, dc
Current drain
Power consumption/input
Pulse counting (specific digital inputs),
frequency range
Time synchronization (specific digital
inputs) synchronization rate
Table 11: RTD/analogue inputs
100 Platinum
Supported RTD sensors
250 Platinum
1000 Platinum
100 Nickel
120 Nickel
250 Nickel
1000 Nickel
10 Copper
120 Nickel
200 per lead
Max lead resistance
(three-wire
measurement)
Accuracy ±0.5% of full scale
±1.0% of full scale for 10 Copper RTD
Isolation 2 kV (inputs to outputs and inputs to protective earth)
Sampling frequency 5 Hz
 Filter time + 30 ms (430 ms...5.03 s)
Response time
RTD/ Resistance max 4.2 mA RMS
6.2 mA RMS for 10 Copper
sensing current
Current input impedance 274 ±0.1%
Table 12: Signal outputs
Max system voltage
Continuous carry
Make and carry for 0.5 s
Make and carry for 3 s
Breaking capacity when control circuit time-constant
L/R <40 ms, at 48/110/220 V dc
REF 541, REF 543, REF 545.
PS1/240 V (High) PS1/240 V (Medium),
PS2/240 V
220 V 110/125/220 V
155...265 V 80...265 V
~2...25 mA
<0.8 W
0...100 Hz
once per minute or once per second
TCR 0.00385 (DIN 43760)
TCR 0.00385
TCR 0.00385
TCR 0.00618 (DIN 43760)
TCR 0.00618
TCR 0.00618
TCR 0.00618
TCR 0.00427
TCR 0.00672 (MIL-T-24388C)
250 V ac/dc
5 A
10 A
8 A
1 A/0.25 A/0.15 A
1MRS750443-MBG
PS1/48 V (Low),
PS2/48V
24/48/60/110/125/
220 V
18...265 V