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11 Maintenance
01.99
6FC5198-6AA60-0BP1
© Siemens AG 1999 All Rights Reserved
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SINUMERIK 840C, OEM Version for Windows (BA)
Rough irregular machining
surface
•
Poor equipotential bonding
between position encoder and
control
•
Increase cross section of bonding
conductors (between control and
position encoder), connect
bonding conductor directly to the
control (not to separate voltage
bus)
•
High equalizing current to
setpoint cable screening when
screen is connected to
housings on both sides
•
Interrupt screen connection on
the control side
•
Bonding conductor between
SINUMERIK and drive
control laid too far from
setpoint cable
•
Shorten distance between
bonding conductor and setpoint
cable
•
Setpoint input on the drive
control does not match
SINUMERIK EMC concept
•
After input protective circuit on
the drive control (in accordance
with protective system of
Siemens drive controls)
Summary of Contents for SINUMERIK 840C
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