Siemens 420 manual Issue 07/04 Functions

Issue 07/04 3 Functions

WARNING

MICROMASTER drive inverters operate with high voltages.

When electrical equipment is operated, then specific parts of this equipment are at hazardous voltage levels.

Emergency switching-off devices in compliance with EN 60204 IEC 204 (VDE 0113) must remain functional in all operating modes of the control device. When the Emergency switching-off device is reset, then it is not permissible that the equipment runs-up again in an uncontrolled or undefined way.

In cases and situations where short-circuits in the control device can result in significant material damage or even severe bodily injury (i.e. potentially hazardous short-circuits), then additional external measures or devices/equipment must be provided in order to ensure or force operation without any potential hazards, even if a short-circuit occurs (e.g. independent limit switches, mechanical interlocks etc.).

Certain parameter settings can mean that the drive inverter automatically restarts after the power supply voltage fails and then returns.

The motor parameters must be precisely configured in order to ensure perfect motor overload protection.

The drive inverter provides internal motor overload protection according to UL508C, Section 42. Also refer to P0610, P0611 and P0335 - I2t is enabled in the default setting.

The drive inverter is suitable for use in circuits which supply a maximum symmetrical (balanced) current 10,000 A (RMS) at a maximum voltage of 230 V / 460 V – if it is protected using a type H or K fuse (also refer to Tables 5-5).

The drive unit may not be used as 'Emergency switching-off device' (refer to EN 60204, 9.2.5.4).

CAUTION

Only qualified personnel may commission (start-up) the equipment. Safety measures and warnings must be always extremely carefully observed and fulfilled.

MICROMASTER 420	Operating Instructions
6SE6400-5AA00-0BP0	37