Watson-Marlow MM420 - Manual (Page 37)

Issue 10/06 3 Functions
MICROMASTER 420 Operating Instructions
6SE6400-5AA00-0BP0 37
WARNING
¾ MICROMASTER drive inverters operate with high voltages.
¾ When electrical equipment is operated, then specific parts of this equipment are
at hazardous voltage levels.
¾ 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.
¾ 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.).
¾ Certain parameter settings can mean that the drive inverter automatically
restarts after the power supply voltage fails and then returns.
¾ The motor parameters must be precisely configured in order to ensure perfect
motor overload protection.
¾ The drive inverter provides internal motor overload protection according to
UL508C, Section 42. Also refer to P0610, P0611 and P0335 - I
2
t is enabled in
the default setting.
¾ This equipment is suitable for use in a circuit capable of delivering not more
than 10,000 symmetrical amperes (rms), for a maximum voltage of 230 V /
460 V when protected by an H, J or K type fuse, a circuit breaker or self-
protected combination motor controller (for more details see Appendix F).
¾ 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.