Siemens Siprotec 5 7SS85 - Page 12

Signal rate connection test 1 pulse per second
Pulse duration connection test 11 μs
High-Speed Measuring-Transducer Inputs, Voltage/Current (via IO210, IO212)
i
i
NOTE
Current and voltage must not be connected at the same time to one measuring-transducer input. Instead,
only connect either current or voltage. For EMC reasons, do not connect a line to an unused input (current
or voltage).
Use shielded cables.
Table 11-1 High-Speed Measuring-Transducer Inputs, Voltage
Differential voltage input channels
IO210: 4
24
IO212: 8
25
Measuring range DC -10 V to +10 V
Fault < 0.5 % of the measuring range
Input impedance 48 kΩ
Max. permissible voltage with
respect to ground on the meas-
uring inputs
300 V
Permissible overload DC 20 V continuously
DC 60 V continuously (IO210 MT3 terminal point C9)
Table 11-2 High-Speed Measuring-Transducer Inputs, Current
Differential current input channels
IO210: 4
26
IO212: 8
27
Measuring range DC -20 mA to +20 mA
Fault < 0.5 % of the measuring range
Input impedance, current 12 Ω
Permissible potential difference
between channels
DC 3.5 kV
Galvanic separation with respect to
ground/housing
DC 3.5 kV
Permissible current overload DC 100 mA continuously
Table 11-3 Common Data for the Fast Measuring-Transducer Inputs, Voltage/Current
Conversion principle Delta-sigma (16 bit)
Insulation test voltage between the
channels
DC 3.5 kV
Insulation test voltage with respect
to ground/housing
DC 3.5 kV
Measured-value repetition 62.5 μs
Insulation class IO210 ELV (Extra Low Voltage) (as per IEC 60255-27)
Insulation class IO212 SELV (as per IEC 60255-27)
24
The IO210 has 4 high-speed measuring-transducer inputs. They can be used either as a voltage or current input.
25
The IO212 has 8 high-speed measuring-transducer inputs. They can be used either as a voltage or current input.
26
The IO210 has 4 high-speed measuring-transducer inputs. They can be used either as a voltage or current input.
27
The IO212 has 8 high-speed measuring-transducer inputs. They can be used either as a voltage or current input.
Technical Data
11.1 General Device Data
SIPROTEC 5, Low-Impedance Busbar Protection, Manual 901
C53000-G5040-C019-C, Edition 04.2021