• Keep the cabinet doors closed when the drive is powered. With the doors open, a risk
of a potentially fatal electric shock, arc flash or high-energy arc blast exists. If you cannot
avoid working on a powered drive, obey the local laws and regulations on live working
(including – but not limited to – electric shock and arc protection).
• 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. If these
functions are activated, the installation must be clearly marked as defined in IEC/EN
61800-5-1, subclause 6.5.3, for example, "THIS MACHINE STARTS AUTOMATICALLY".
• 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.
• Validate any safety circuits (for example, Safe torque off or emergency stop) in start-up.
See separate instructions for the safety circuits.
Note:
• If you select an external source for the start command and it is on, the drive will start
immediately after fault reset unless you configure the drive for pulse start. See the
firmware manual.
• Depending on the wiring and parametrization of the drive, the stop key on the control
panel may not stop the drive.
• Only authorized persons are allowed to repair a malfunctioning drive.
￭ Work on the liquid cooling system
These instructions are intended for all personnel that do installation, commissioning and
maintenance work on the liquid cooling system.
WARNING!
Obey these instructions. If you ignore them, injury or death, or damage to the
equipment can occur.
• Use the required personal protective equipment. See the Safety data sheet for
Antifrogen
®
L coolant by Clariant (www.clariant.com) for the instructions on the
respiratory, hand and eye protection when handling the coolant.
• Beware of hot coolant. Do not work on the liquid cooling system until the pressure is
lowered down by stopping the pumps and draining the coolant. High-pressure warm
coolant (6 bar, max. 50 °C) is present in the internal cooling circuit when it is in operation.
• Avoid skin contact with coolant. If coolant splashes onto the skin or in the eyes, rinse
immediately with plenty of water. Do not syphon it by mouth. If you swallow or get it into
the eyes, seek medical advice.
• Before power switch-on, make sure that the internal cooling circuit is filled up with
coolant, and the cooling is in operation (coolant circulates).
• Make sure that coolant meets the ABB specification. See the appropriate hardware
manual of the drive/unit.
• To avoid breaking the coolant pipes, do not overtighten the nuts of the unions. Leave
2 to 3 millimeters (0.08 to 0.12 inches) of thread visible.
Safety instructions 15
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