ABB REF542plus - Troubleshooting REF542 plus Issues; Error Messages and Solutions

Multifunction Protection and Switchgear Control unit REF542plus
Manual: Motor Protection with ATEX-Certification
9 Technical data
9.1 Analog input channels
Accuracy for measurement: Class 1
Accuracy for protection applications: Class 3
Accuracy of operation time: min ± 20 ms or Class 3
9.1.1 Current and voltage transformer input values
Rated current In 1A or 5A
Rated voltage Un 100V (also suitable for 110V)
Rated frequency fn 50 Hz / 60 Hz
Thermal load capacity
Current path 250 I
n
(peak value) dynamic,
100 I
n
for 1s,
4 I
n
continuous,
Voltage path
2 U
n
/√3 continuous.
Consumption
Current path
≤ 0.1 VA with I
n
Voltage path
≤ 0.25 VA with U
n
9.1.2 Current and voltage sensor input values
Voltage at rated current In 150 mV (rms)
Voltage at rated voltage Un 2V (rms)
Rated frequency fn 50 Hz / 60 Hz
1VTA100114-Rev. 04 en PTMV, 19.01.05 Motorprotection 55 / 66
Valid from Version V4D02