ABB 5SHY35L4512 SCR control unit module
Printed circuit boardsFibre optic cables
WARNING! Ignoring the following instructions can cause damage to the printed
circuit boards:
• The printed circuit boards contain components sensitive to electrostatic
discharge. Wear a grounding wrist band when handling the boards. Do not
touch the boards unnecessarily.
WARNING! Ignoring the following instructions can cause equipment malfunction
and damage to the fibre optic cables:
• Handle the fibre optic cables with care. When unplugging optic cables, always
grab the connector, not the cable itself. Do not touch the ends of the fibres with
bare hands as the fibre is extremely sensitive to dirt. The minimum allowed
bend radius is 35 mm (1.4 in.)
These warnings are intended for all who plan the operation of the drive or operate
the drive.
WARNING! Ignoring the following instructions can cause physical injury or death,
or damage to the equipment:
• Before adjusting the drive and putting it into service, make sure that the motor
and all driven equipment are suitable for operation throughout the speed range
provided by the drive. The drive can be adjusted to operate the motor at
speeds above and below the speed provided by connecting the motor directly
to the power line.
• Do not activate automatic fault reset functions of the Standard Control Program
if dangerous situations can occur. When activated, these functions will reset
the drive and resume operation after a fault.
• Do not control the motor with the disconnecting device; instead, use the control
panel keys and , or commands via the I/O board of the drive. The
maximum allowed number of charging cycles of the DC capacitors (i.e. power ups by applying power) is five in ten minutes.
Note:
• If an external source for start command is selected and it is ON, the drive (with
Standard Control Program) will start immediately after fault reset unless the
drive is configured for 3-wire (a pulse) start/stop.
• When the control location is not set to Local (L not shown in the status row of
the display), the stop key on the control panel will not stop the drive. To stop
the drive using the control panel, press the LOC/REM key and then the stop

These are additional warnings concerning permanent magnet motor drives. Ignoring
the instructions can cause physical injury or death, or damage to the equipment.
Note: Controlling a permanent magnet motor is only allowed using the ACS800
Permanent Magnet Synchronous Machine Drive Application Program.
Installation and maintenance work
WARNING! Do not work on the drive when the permanent magnet motor is rotating.
Also, when the supply power is switched off and the inverter is stopped, a rotating
permanent magnet motor feeds power to the intermediate circuit of the drive and the
supply connections become live.
Before installation and maintenance work on the drive:
• Stop the motor.
• Ensure that the motor cannot rotate during work. Prevent the start-up of any
drives in the same mechanical group by opening the Prevention of unexpected
start-up switch (option +Q950) or the Safe torque off switch (option +Q967) and
padlocking it. Make sure that no other system, like hydraulic crawling drives, are
able to rotate the motor directly or through any mechanical connection like felt,
nip, rope, etc.
• Ensure that there is no voltage on the drive power terminals:
Alternative 1) Disconnect the motor from the drive with a safety switch or by other
means. Measure that there is no voltage present on the drive input, output or DC
terminals (U1, V1, W1, U2, V2, W2, UDC+, UDC-).
Alternative 2) Measure that there is no voltage present on the drive input, output
or DC terminals (U1, V1, W1, U2, V2, W2, UDC+, UDC-). Ground the drive output
terminals temporarily by connecting them together as well as to the PE.
Alternative 3) If possible, both of the above.
Start-up and operation
WARNING! Do not run the motor over the rated speed. Motor overspeed leads to
overvoltage which may damage or explode the capacitors in the intermediate circuit
of the drive.
What this chapter contains
This chapter describes the intended audience and contents of the manual. It
contains a flowchart of steps in checking the delivery, installing and commissioning
the drive. The flowchart refers to chapters/sections in this manual and other
manuals.
Target audience
This manual is intended for people who plan the electrical installation, install,
commission, use and service the drive. Read the manual before working on the
drive. The reader is expected to know the fundamentals of electricity, wiring,
electrical components and electrical schematic symbols.
The manual is written for readers worldwide. Both SI and imperial units are shown.
Special US instructions for installations within the United States that must be
installed per the National Electrical Code and local codes are marked with (US).
Categorization according to the frame size
The instructions, technical data and dimensional drawings which concern only
certain frame sizes are marked with the symbol of the frame size R2, R3... or R8.
The frame size is not marked on the drive designation label. To identify the frame
size of your drive, see rating tables in chapter Technical data.
Categorization according to the plus code
The instructions, technical data and dimensional drawings which concern only
certain optional selections are marked with plus codes, e.g. +E210 or +H354. The
options included in the drive can be identified from the plus codes visible on the type
designation label of the drive. The plus code selections are listed in chapter
Operation principle and hardware description under Type code.