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.
The device comprises a rapid discharge circuit for the DC bus as per EN60204 section 6.2.4.
In certain device constellations, however, mostly in the case of parallel connection of several
servo drive controllers in the DC bus or in the case of an unconnected brake resistor, this
rapid discharge may be ineffective. The servo drive controllers can carry voltage until up to 5
minutes after being switched off (residual capacitor charge).
2.4.4 Protection against electrical shock by means of protective extra-low
voltage (PELV)
All connections and terminals with voltages of up to 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.
The signals for the temperature sensor "MT-" (PIN 4) and "MT+" (PIN 5) on the motor
connector plug [X6] are not situated on safety extra-low voltage
(PELV - protective extra-low voltage). The connections are designed for non-PELV
temperature sensors. The isolation to PELV is part inside the ARS 2000 FS.
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