Connection Of The Safety Module - Lenze Inverter i550 Cabinet Montage- Und Einschaltanleitung

Mounting/ installation
Electrical installation

Connection of the safety module

Connection of the safety module
DANGER!
Improper installation of the safety engineering system can cause an uncontrolled starting action of the
drives.
Possible consequences: Death or severe injuries
▶ Safety engineering systems may only be installed and commissioned by qualified and skilled personnel.
▶ All control components (switches, relays, PLC, ...) and the control cabinet must comply with the require-
ments of the EN ISO 13849−1 and the EN ISO 13849−2.
▶ Switches, relays with at least IP54 enclosure.
▶ Control cabinet with at least IP54 enclosure.
▶ It is essential to use insulated wire end ferrules for wiring.
▶ All safety relevant cables outside the control cabinet must be protected, e.g. by means of a cable duct
▶ Ensure that no short circuits can occur according to the specifications of the EN ISO 13849−2.
▶ All further requirements and measures can be obtained from the EN ISO 13849−1 and the
EN ISO 13849−2.
▶ If an external force acts upon the drive axes, additional brakes are required. Please observe that hanging
loads are subject to the force of gravity!
▶ The user has to ensure that the inverter will only be used in its intended application within the specified
environmental conditions. This is the only way to comply with the declared safety-related characteristics.
DANGER!
With the "Safe torque off" (STO) function, no "emergency stop" in terms ‑EN 60204−1 can be executed with-
out additional measures. There is no isolation between the motor and inverter, no service switch or mainte-
nance switch!
Possible consequence: death or severe injuries
▶ "Emergency stop" requires electrical isolation, e.g. by a central mains contactor.
DANGER!
Automatic restart if the request of the safety function is deactivated.
Possible consequences: Death or severe injuries
▶ You must provide external measures according to EN ISO 13849−1 which ensure that the drive only
restarts after a confirmation.
NOTICE
Overvoltage
Destruction of the safety component
▶ The maximum voltage (maximum rated) at the safety inputs is 32 V DC. The user must make provisions to
avoid that this voltage is exceeded.
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