ABB REF 54 Series Technical Reference Manual page 76

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76
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Technical Reference Manual, General
7DEOH  57'DQDORJXH LQSXWV
Supported RTD sensors
Max lead resistance
(three-wire measurement)
Accuracy
Isolation
Sampling frequency
Response time
RTD / Resistance sensing
current
Current input impedance
7DEOH  6LJQDO RXWSXWV
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
7DEOH  3RZHU RXWSXWV
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 dcd
Minimum contact load
TCS (Trip Circuit Control voltage range
Supervision)
Current drain through
the supervision circuit
Minimum voltage
(threshold) over a
contact
1) two contacts in series
7DEOH  $QDORJXH RXWSXWV
Output range 0...20 mA
± 0.5% of full scale
Accuracy
600 Ω
Max load
Isolation 2 kV (output to output, output to inputs and output to protective earth)
≤ 85 ms
Response time
100 Ω Platinum
TCR 0.00385 (DIN 43760)
250 Ω Platinum
TCR 0.00385
1000 Ω Platinum
TCR 0.00385
100 Ω Nickel
TCR 0.00618 (DIN 43760)
120 Ω Nickel
TCR 0.00618
250 Ω Nickel
TCR 0.00618
1000 Ω Nickel
TCR 0.00618
10 Ω Copper
TCR 0.00427
120 Ω Nickel
TCR 0.00672 (MIL-T-24388C)
200 Ω per lead
± 0.5% of full scale
± 1.0% of full scale for 10 Ω Copper RTD
2 kV (inputs to outputs and inputs to protective earth)
5 Hz
≤ Filter time + 30 ms (430 ms...5.03 s)
max 4.2 mA RMS
6.2 mA RMS for 10 Ω Copper
274 Ω ± 0.1%
250 V ac/dc
5 A
10 A
8 A
1 A/0.25 A/0.15 A
250 V ac/dc
5 A
30 A
15 A
5 A/3 A/1 A
1)
100 mA, 24 V ac/dc (2.4 VA)
20...265 V ac/dc
approx. 1.5 mA (0.99...1.72 mA)
20 V ac/dc (15...20 V)
1MRS750527-MUM