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For the power consumption of the resistance:
[formel-leistungvon-r-260602-kn, 1, en_US]
Example
0.4 mA (SIPROTEC 4 7RW80)
Ι
BI (HIGH)
V
19 V at delivery setting for nominal voltages of 24 V/ 48 V;
BI min
88 V at delivery setting for nominal voltages of 60 V/ 110 V/ 125 V/ 220 V/ 250 V
V
110 V (from the system / trip circuit)
CTR
R
500 Ω (from the system / trip circuit)
CBTC
V
2 V (from the system / trip circuit)
CBTC (LOW)
[fo_r-max-bsp, 1, en_US]
[beispiel-rmin-20061211, 1, en_US]
[fo_r-mittelwertbsp, 1, en_US]
[fo_leistung-r, 1, en_US]
Hardware Modifications
3.1.2
3.1.2.1
Disassembly
Work on the Printed Circuit Boards
NOTE
i
i
Before carrying out the following steps, make sure that the device is not operative.
NOTE
i
i
Apart from the communication modules and the fuse, there are no further components that can be config-
ured or operated by the user inside the device. Any service activities exceeding the installation or exchange
of communication modules must only be carried out by Siemens personnel
For preparing the workplace, a pad suitable for electrostatic sensitive devices (ESD) is required.
Additionally, the following tools are required:
•
a screwdriver with a 5 mm to 6 mm (0.20 – 0.24 in) wide blade,
•
a Philips screwdriver size 1,
•
a 5 mm (0.20 in) socket or nut driver.
SIPROTEC 4, 7RW80, Manual
C53000-G1140-C233-4, Edition 07.2018
Mounting and Commissioning
3.1 Mounting and Connections
127
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