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12.96
5
Maintenance
SIMOVERT MASTER DRIVES are operated at high voltages.
All work carried-out on or with the equipment must conform to all of the relevant national
electrical codes (VBG4 in Germany).
Maintenance and service work may only be executed by qualified personnel.
Only spare parts authorized by the manufacturer may be used.
The specified maintenance intervals and also the instructions for repair and replacement
must be adhered to.
The drive units have hazardous voltage levels up to 5 min after the converter has been
powered-down due to the DC link capacitors so that the unit must only be opened after an
appropriate delay time.
The power- and control terminals can still be at hazardous voltage levels even though the
motor is at a standstill.
If it is absolutely necessary that the drive converter must be worked on when powered-up:
♦ never touch any live components.
♦ only use the appropriate measuring and test equipment and protective clothing.
♦ always stand on an ungrounded, isolated and ESD-compatible pad.
If these warnings are not observed this can result in death, severe bodily injury or significant
material damage.
Always have your MASTER DRIVE converter Order No. and serial No. available when contacting the service
department. These numbers and other important data are located on the drive converter rating plate.
5.1
Maintenance requirements
The fans are designed for a service life of 35000 hours at an ambient temperature of T
replaced before their service life expires so that the drive converter availability is guaranteed.
♦ Type of construction M consists of two chassis units (master, open-loop/closed-loop controlled and slave
controlled), size K, a reactor chassis and the associated busbars
♦ The slave unit has no PMU an no electronics box.
♦ Service/maintenance is the same as chassis units, type of construction K. The differences are described.
♦ The busbar design and the design of the three components is described in the engineering support.
♦ The connection of the control cables between the slave and the master is described in Sections 2.1 and 2.3.
Siemens AG
6SE7087-6BM70
SIMOVERT MASTER DRIVES
INSTRUCTIONS for type of construction M
Operating Instructions
WARNING
Maintenance
= 40 °C. They must be
U
5-1
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