3 Functions Issue 10/06
MICROMASTER 440 Operating Instructions
50 6SE6400-5AW00-0BP0
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 The following terminals can carry dangerous voltages even if the inverter is
inoperative:
♦ the power supply L/L1, N/L2, L3 resp. U1/L1, V1/L2, W1/L3
♦ the motor terminals U, V, W resp. U2, V2, W2
♦ and depending on the frame size the terminals DC+/B+, DC-, B-, DC/R+
resp. DCPS, DCNS, DCPA, DCNA
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. I
2
t monitoring is enabled in the default setting (refer to
P0610 and P0335). The motor overload protection can also be guaranteed
using an external PTC or KTY84.
¾ This equipment is suitable for use in a circuit capable of delivering not more
than 10,000 (Frame Sizes A to C) or 42,000 (Frame Sizes D to GX) symmetrical
amperes (rms), for a maximum voltage of 230 V / 460 V / 575 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.
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