Siemens SICAM - User Manual

Questions and Answers

E
emilygardnerAug 17, 2025
What to do if Siemens Measuring Instruments SICAM EFI is not responding after initial installation?
- S
  Sharon MckayAug 17, 2025
  If your battery-powered Siemens Measuring Instruments SICAM EFI isn't responding, first, press the push-button for 1 second to perform a self-test. If it fails, remove the front cover and check that the paper strip between the battery and clip is removed, and the battery polarity is correct. If it still fails, contact Siemens customer care. For dual-powered variants, check if the green Auxiliary LED is ON. If not, perform a self-test by pressing the push-button for 1 second. If the self-test fails, check the auxiliary supply connection. If problems persist, disconnect the auxiliary supply and follow the steps for the battery variant.
M
matthewhickmanAug 20, 2025
Why is the auxiliary LED not ON in my Siemens Measuring Instruments dual-powered variant?
- W
  whitekyleAug 20, 2025
  The auxiliary LED should be ON when either AC or DC auxiliary supply is connected and available. If you have an AC connection, verify that the AC auxiliary supply is correctly wired and available. If you have a DC connection, ensure the DC auxiliary supply is correctly wired and available.
R
Ricky VaughanAug 22, 2025
How to fix Siemens SICAM Measuring Instruments self-test function if it does not work?
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  Joshua GrantAug 23, 2025
  If the self-test function doesn't work immediately after installation, it might be due to incorrect battery installation. Remove the front cover and check that the paper strip between the battery and clip has been removed, and that the battery polarity is correct. If the self-test is still not operational, perform a battery check function to check the health of the battery. If this occurs during normal operation, it could be due to a battery drain issue. Perform a battery check function to check the health of the battery.
L
Lisa CummingsAug 25, 2025
What to do if Siemens SICAM Measuring Instruments resets immediately after detecting the fault?
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  Samantha RiggsAug 26, 2025
  If the Siemens Measuring Instruments device resets immediately after detecting a fault, examine whether the remote reset is activated or the AC 230 V reset input is applied continuously. Also, verify if momentary fault reset is activated using DIP switches DIP1 and DIP2.
J
jasonmcintoshAug 28, 2025
What to do if LED indicates fault condition but binary outputs don't operate in Siemens SICAM?
- R
  Ruth WarrenAug 28, 2025
  If the LED on your Siemens Measuring Instruments indicates a fault but the binary outputs do not operate, check the battery health by pressing the push button for more than 3 seconds. If the battery is not healthy, replace it with a new one.
J
Jorge MartinezAug 31, 2025
Why Siemens SICAM Measuring Instruments device failed to work as per the DIP switch configuration settings?
- R
  robertsmathewAug 31, 2025
  If your Siemens Measuring Instruments device failed to work as per the DIP switch configuration settings, perform the complete function test by pressing the push button for less than 3 seconds to apply the DIP switch settings.
G
Gregory FarrellSep 2, 2025
What to check if Siemens Measuring Instruments does not detect any fault?
- S
  Sean WoodSep 2, 2025
  If the Siemens Measuring Instruments device does not detect any fault even after current is supplied in the phase and ground sensor, check the current threshold limits set in the sensors.
T
Theresa WardSep 5, 2025
What to do if fault current is not detected by Siemens SICAM Measuring Instruments?
- J
  jack48Sep 5, 2025
  If fault current above the threshold value is not detected by the Siemens Measuring Instruments device, check the current sensor threshold limit setting on the phase and ground sensor. Also, check the plastic fibre-optic cable connection between the current sensor and the device, ensuring that both ends touch the internal parts. Perform the function test by pressing the push button for less than 3 s. Perform the sensors plastic fibre-optic cable test function to ensure the cable healthiness by using the DIP switch.
J
Judy GonzalezSep 8, 2025
Why is fault indication stopped after the fault is cleared in Siemens Measuring Instruments?
- A
  April KimSep 8, 2025
  If the Siemens Measuring Instruments device detects a fault and the indication stops after the fault condition is cleared, check the DIP 10 switch setting. Verify if the device is in optical input test mode. Revert the device to normal operating mode and execute the functional test.
A
Alyssa PageSep 12, 2025
What to do if ground sensor detects ground-fault but binary output X4 does not operate in Siemens SICAM?
- L
  Leah KingSep 12, 2025
  If the ground sensor in your Siemens Measuring Instruments detects a ground-fault E and the LED glows, but the binary output X4 does not operate, check if the DIP 8 switch in the device has been set to indicate both faults on a single binary output X3.

Summary

Hardware Components and Drawings

3.1 Hardware Components

3.2 Terminal Diagram and Connections

Details terminal assignments and connection methods for wiring.

Terminal Connections

Device Functions

4.1 Description

Details the various functions and operational aspects of the SICAM FCM.

Fault Detection and Indication

Explains how faults are detected, measured, and indicated by the device.

Fault Management (Reset, Validation, Timers)

Covers fault reset mechanisms, validation, and timer configurations.

Trip Time DMT and IDMT

Details the definite and inverse definite minimum time characteristics for fault clearing.

Ground-Fault Parameter Active Group Setting

Describes the two groups of settings for ground-fault detection parameters.

DO Configuration

Correction Factors for LoPo VT and LoPo CT

Power-Flow Direction Reversal

Determination of Fault Direction

Describes how fault direction is determined using phase angles.

Directional Ground Fault

Details directional ground fault detection for different system types.

Ground-Fault Detection with Cos φ;Sin φ Measurement

Explains ground fault detection using active/reactive current parts.

Pulse-Location Detection Mechanism

Describes detecting faulty feeders using pulse patterns in ground current.

Inrush-Current Detection;Blocking

Primary Current Settings

Voltage Measurements with Sensors

Low-Voltage Measurement

Remote Firmware Updates

Password Menu Access

Device Alerts

Archive Logging

Technical Data

5.1 Device Technical Data

Presents detailed technical specifications of the SICAM FCM device.

Measured Values Accuracy

Details the accuracy classes for measured voltage, current, frequency, and energy.

Measured Ground-Current Accuracy for Isolated;Resonant Connection

Specifies accuracy for ground-current measurements in specific system types.

Communications and Interfaces

RS485 Interface

Type Testing

6.1 Type Testing

Mechanical and EMC Tests

Connection Diagrams

7.1 Connection Types

Illustrates various connection schemes for fault detection and indication.

Fault Passage Indicator

Ground-Fault Indicator

Fault Detector

7.2 Installing the Device

Provides step-by-step instructions for installing the SICAM FCM device.

7.3 Sensor Connections and Grounding

Details sensor wiring, cable leads, and grounding connections.

Current-Sensors Grounding Connection

Voltage Sensors Grounding Connection

7.4 Modbus Connection

Shows how to connect the device via Modbus to RTU, CMIC/A8000, and MCU.

Modbus Shielding and Grounding

Modbus Termination

Parameterization

A.1 Parameterization Overview

Describes parameter menus and settings executable via the user interface.

Display and User Controls

A.2 User Interface Navigation

Details the default menu parameters and navigation through the user interface.

Default Menu

Parameterization Menu Structure

A.3 Editing Device Settings

Provides an example of how to edit and set device parameters via the interface.

Modbus Registers

B.1 Modbus Overview

B.2 Implementation of the Modbus Protocol

Details Modbus function codes, data package formats, and communication settings.

Modbus Function Codes

Data-Package Format

B.3 Bit-Type Data Registers

B.4 Holding Registers

Lists and describes the Modbus holding registers for device configuration.

B.5 Input Registers

Lists and describes the Modbus input registers for measured values.

B.6 Analog Input Registers

Details analog input registers for alarms, warnings, and reset times.

B.7 Events Registers

B.8 Trailing Pointers Registers

B.9 Self-Test Mode

Siemens SICAM Specifications

General

Measurement Accuracy	±0.1%
Input Current Range	0-5A AC/DC
Frequency Range	45-65Hz
Communication Interfaces	Ethernet, RS485
Power Supply	24 V DC
Protection Class	IP20