Siemens SIMOCODE pro Operating Manual

Parameters
4.3 Monitoring functions
SIMOCODE pro - Parameterize
Operating Manual, 04/2017, A5E40507630002A/RS-AA/001
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4.3.1.2
Limits of fault current measurement
In the event of increasing primary currents, imbalances in the cable routing and current loads
in individual cables increasingly cause what appear to be residual currents that are detected
by the evaluation units. Spurious tripping may therefore occur if excessively low monitoring
limit values have been set at high primary currents. Because of these tolerances in the
configuration, the measuring accuracy no longer corresponds to the stated range of ±7.5 %.
To avoid spurious tripping, we recommend setting the limit values to the minimum values
listed in the following graphic, depending on the applicable primary current.

Siemens SIMOCODE pro Specifications

General

Protection Class	IP20
Mounting Type	DIN rail mounting
Rated Operational Voltage	24 V DC
Rated Current	Up to 820 A
Protection Functions	Overload, short-circuit, phase failure, asymmetry, ground fault, motor stall
Operating Temperature Range	-25°C to +60°C
Communication Protocols	PROFIBUS DP, PROFINET, Modbus RTU
Analog Outputs	Up to 2
Temperature Monitoring	PTC/KTY, RTD (PT100/PT1000)
Digital Outputs	Relay outputs, Solid-state outputs
Analog Inputs	0/4-20mA, PT100/PT1000