Monitored Circuit
Over-Voltage
Resistive cable short circuit.
Internal measurement
circuit fault.
Transient event on the
monitored circuit.
Circuit configured to monitor
a lower voltage than that
connected.
No
Replace resistive cable.
Ensure the correct nominal
voltage is configured for the
effected circuit.
Ensure the correct voltage
type (AC/DC) is configured
for the monitored circuit.
Internal Relay Fault
Internal measurement
circuit fault.
Transient event on one of
the monitored circuits.
No
None.
Out of Tolerance
Internal measurement
circuit fault.
Extreme temperature event.
No
None.
6) Technical Data
6.1) Specification
Insulation Coordination to EN50124-1 & EN60101-1
Nominal System Supply Voltage
)
(U
N
AC 110 V RMS
Over-voltage Category
CAT IV
Rated Impulse Voltage Withstand
)
(U
Ni
4 kV
Pollution Degree
3
Rated Insulation Voltage (U
)
Nm
AC 185V RMS
Inter-Monitored Circuit Isolation Voltage (Galvanic)
+/- 400 V Peak
Min.
Inter-Monitored Circuit Protective Impedance (in break-down)
140 k
Min.
All devices undergo factory Hi-Pot testing
Supply Voltage
Operating Voltage Range
AC 50-160 V RMS
+15%
Operating Frequency Range
50 to 60 Hz
Max. Power Consumption
6 VA
Monitored Circuits Voltage
Number of Independent Circuits Monitored
5
AC or DC
Operating Voltage Range
AC 5-160 V RMS
DC 5-160 V RMS
+15%
+15%
Operating Frequency Range
DC to 60 Hz
Accuracy
+/- 5 %
Monitored Circuits Insulation
Resistance
Equivalent Resistance to Earth (R
L =
R
//R
B
)
N
0 to 5 M
AC Circuits
Actual Resistance to Earth (R
)
and R
B
N
0 to 5 M
DC Circuits
If device interlocks persist after fault finding actions have been exhausted the SA380-IT should be removed from service and
returned to MPEC for investigation.
Summary of Contents for SA380-IT
Page 43: ...Open the App...
Page 50: ...The SA380 IT will not perform any measurements if the time is not set...
Page 60: ......
