ABB REF 54 Series Technical Reference Manual

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Technical Reference Manual, General
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Supported RTD sensors 100 Ω Platinum
250 Ω Platinum
1000 Ω Platinum
100 Ω Nickel
120 Ω Nickel
250 Ω Nickel
1000 Ω Nickel
10 Ω Copper
120 Ω Nickel
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)
Max lead resistance
(three-wire measurement)
200 Ω per lead
Accuracy ± 0.5% of full scale
± 1.0% of full scale for 10 Ω Copper RTD
Isolation 2 kV (inputs to outputs and inputs to protective earth)
Sampling frequency 5 Hz
Response time ≤ Filter time + 30 ms (430 ms...5.03 s)
RTD / Resistance sensing
current
max 4.2 mA RMS
6.2 mA RMS for 10 Ω Copper
Current input impedance 274 Ω ± 0.1%
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Max system voltage 250 V ac/dc
Continuous carry 5 A
Make and carry for 0.5 s 10 A
Make and carry for 3 s 8 A
Breaking capacity when control circuit time-
constant L/R <40 ms, at 48/110/220 V dc
1 A/0.25 A/0.15 A
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Max system voltage 250 V ac/dc
Continuous carry 5 A
Make and carry for 0.5 s 30 A
Make and carry for 3 s 15 A
Breaking capacity when control circuit time
constant L/R <40 ms, at 48/110/220 V dcd
1)
5 A/3 A/1 A
Minimum contact load 100 mA, 24 V ac/dc (2.4 VA)
TCS (Trip Circuit
Supervision)
Control voltage range 20…265 V ac/dc
Current drain through
the supervision circuit
approx. 1.5 mA (0.99…1.72 mA)
Minimum voltage
(threshold) over a
contact
20 V ac/dc (15…20 V)
1) two contacts in series
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Output range 0...20 mA
Accuracy ± 0.5% of full scale
Max load 600 Ω
Isolation 2 kV (output to output, output to inputs and output to protective earth)
Response time ≤
85 ms

ABB REF 54 Series Specifications

General

Brand	ABB
Model	REF 54 Series
Category	Touch terminals
Language	English