Electrical Safety In Installation, Start-Up And Maintenance; Precautions Before Electrical Work - ABB ACS560 Hardware Manual

• Before you adjust the drive operation limits, make sure that the motor and all driven
equipment can operate throughout the set operation limits.
• Before you activate the automatic fault reset or automatic restart functions of the drive
control program, make sure that no dangerous situations can occur. These functions
reset the drive automatically and continue operation after a fault or supply break.
• The maximum number of drive power-ups is five in ten minutes. Too frequent power-ups
can damage the charging circuit of the DC capacitors.
• If you have connected safety circuits to the drive (for example, emergency stop and
Safe torque off), validate them at the start up. For the validation of the Safe torque off,
see ACS560 standard control program firmware manual (3AXD50000044997 [English]).
For the validation of other safety circuits, see the instructions provided with them.
Note:
• If you select an external source for start command and it is on, and the start command
is level-triggered, the drive will start immediately after fault reset. See parameters and
in ACS560 standard control program firmware manual, (3AXD50000044997 [English]).
• When the control location is not set to Local (text Local is not shown on the top row of
the panel and parameter 19.17 Local control disable has value Disabled), the stop key
on the control panel will not stop the drive.
• Frames R0...R5 are not field repairable. Do not attempt to repair a malfunctioning drive;
contact your local representative for replacement.
• Frames R6...R8 can be repaired by authorized persons.

Electrical safety in installation, start-up and maintenance

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Precautions before electrical work

These warnings are for all personnel who do work on the drive, motor cable or motor.
WARNING!
Obey these instructions. If you ignore them, injury or death, or damage to the
equipment can occur. If you are not a qualified electrician, do not do electrical
installation or maintenance work. Go through these steps before you begin any
installation or maintenance work.
1. Clearly identify the work location.
2. Disconnect all possible voltage sources.
• Open the main disconnector at the power supply of the drive.
• Make sure that reconnection is not possible. Lock the disconnector to open position
and attach a warning notice to the disconnector.
• Disconnect any external power sources from the control circuits before you do work
on the control cables.
• After you disconnect the drive, always wait for 5 minutes to let the intermediate
circuit capacitors discharge before you continue.
3. Protect any other energized parts in the work location against contact.
4. Take special precautions when close to bare conductors.
5. Measure that the installation is de-energized.
• Use a multimeter with an impedance of at least 1 Mohm.
Safety instructions 13