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Safety instructions

Residual hazards

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EDKCSCE040 DE/EN/FR 3.0

1.2 Residual hazards

Protection of persons

ƒ Before working on the power supply module, check that no voltage is

applied to the power terminals, because

– the power terminals +UG, −UG, BR0 and BR1 remain live for at least 3

minutes after mains disconnection.

– because the power terminals +UG, −UG, BR0 and BR1 remain live when

the motor is stopped.

ƒ The operating temperature of the heatsink is > 70 °C:

– Direct skin contact with the heatsink results in burns.

ƒ The leakage current to PE is > 3.5 mA AC or > 10 mA DC.

– According to EN 61800−5−1, a fixed installation is required.

– The PE connection has to conform to EN 61800−5−1.

– Comply with further requirements of EN 61800−5−1 for high leakage

currents!

ƒ Operation of the power supply module with an earth−leakage circuit

breaker:

– The power supply modules are provided with an internal mains

rectifier. In the event of a short−circuit to frame, a non−pulsating DC

fault current can prevent the tripping of AC−sensitive or

pulse−current−sensitive earth−leakage circuit breakers and thus block

the protective function for all electrical equipment operated on these

earth−leakage circuit breakers.

– If a residual current device (RCD) is used as a protective means in the

case of direct or indirect contact, only a residual current device (RCD) of

type B may be used. Otherwise, another protective measure, such as

separation from the environment through double or reinforced

insulation or disconnection from the mains by means of a transformer

must be used.

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