4.1 General
301
7UM61 Manual
C53000-G1176-C127-3
Time Synchronization Interface
4.1.5 Electrical Tests
Regulations
Insulation Test
Time synchronization DCF 77
IRIG B Signal
(telegram format IRIG-B000)
Connection for flush-mounted case rear panel, mounting location "A";
9-pin D-SUB socket
for surface-mounted case at two-tier terminals on case bottom
Signal Nominal Voltages selectable 5 V, 12 V or 24 V
Signal levels and burdens:
Nominal Signal Voltage
5 V 12 V 24 V
U
IHigh
6.0 V 15.8 V 31 V
U
ILow
1.0 V at I
ILow
= 0.25 mA 1.4 V at I
ILow
= 0.25 mA 1.9 V at I
ILow
= 0.25 mA
I
IHigh
4.5 mA to 9.4 mA 4.5 mA to 9.3 mA 4.5 mA to 8.7 mA
R
I
890 Ω at U
I
= 4 V 1930 Ω at U
I
= 8.7 V 3780 Ω at U
I
= 17 V
640 Ω at U
I
= 6 V 1700 Ω at U
I
= 15.8 V 3560 Ω at U
I
= 31 V
Standards: IEC 60,255 (product standards)
IEEE C37.90.0/.1/.2
UL 508
DIN 57 435 Part 303
See also standards for individual tests
Standards: IEC 60,255-5, IEC 60,870-2-1
High voltage test (routine test) current
inputs, voltage inputs, output relays
2.5 kV (rms), 50 Hz
High voltage test (routine test) auxiliary
voltage and binary inputs
3.5 kV DC
High voltage test (routine test) measuring
transducers TD1-TD3
3.0 kV DC
Impulse Voltage Test (Routine Test) Only
Isolated Communications and Time Syn-
chronization Interfaces and Analog Outputs
(Ports A -D)
500 V (rms), 50 Hz
Impulse voltage test (type test) all circuits
except communication and time synchroni-
zation interfaces, analog outputs
5 kV (peak): 1.2/50 µs: 0.5 J:
3 positive and 3 negative impulses in intervals of
5s
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