Page 16 Safety notes for electrical drives and controllers
PROFIBUS-Manual Servo positioning controller DIS-2 48/10 FB Version 2.0
Always connect the ground conductor of the electrical equipment and devices securely to
the mains supply. Due to the integrated line filter the leakage current exceeds 3.5 mA!
Comply with the minimum copper cross-section for the ground conductor over its entire
length as per EN60617!
Prior to the initial operation, even for short measuring or testing purposes, always
connect the ground conductor of all electrical devices as per the terminal diagram or
connect it to the ground wire. Otherwise the housing may carry high voltages which can
cause electrical shock.
Do not touch electrical connections of the components when switched on.
Prior to accessing electrical parts carrying voltages exceeding 50 Volts, disconnect the
device from the mains or power supply. Protect it from being switched on again.
For the installation the amount of DC bus voltage must be considered, particularly
regarding insulation and protective measures. Ensure proper grounding, wire
dimensioning and corresponding short-circuit protection.
2.4.4 Protection against electrical shock by means of protective extra-low
voltage (PELV)
All connections and terminals with voltages between 5 and 50 Volts at the servo drive controller are
protective extra-low voltage, which are designed safe from contact in correspondence with the
following standards:
International: IEC 60364-4-41
European countries within the EU: EN 50178/1998, section 5.2.8.1.
DANGER!
High electrical voltages due to wrong connections!
Danger to life, risk of injury due to electrical shock!
Only devices and electrical components and wires with a protective extra low voltage (PELV) may be
connected to connectors and terminals with voltages between 0 to 50 Volts.
Only connect voltages and circuits with protection against dangerous voltages. Such protection may be
achieved by means of isolation transformers, safe optocouplers or battery operation.
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