Additional Instructions And Notes - ABB ACS880-37 Hardware Manual

20 Safety instructions

Additional instructions and notes


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.
•
Do not install a drive with EMC filter option +E202 on an ungrounded power system or
a high resistance-grounded (over 30 ohms) power system.
•
Do not connect the drive to a voltage higher than what is specified on the type
designation label. If you do, the brake chopper (if present) starts to operate which
causes the overheating of the brake resistor. Overvoltage can also cause the motor to
rush to its maximum speed.
•
We do not recommend that you secure the cabinet by arc welding. If you have to, obey
the instructions on page 74.
•
Do not do insulation or voltage withstand tests on the drive or its modules.
Note:
•
The motor cable terminals of the drive are at a dangerous voltage when the input
power is on, regardless of whether the motor is running or not.
•
The DC bus, brake chopper and brake resistors (if any) are at a dangerous voltage.
•
External wiring can supply dangerous voltages to the relay outputs of the control units
of the drive.
•
The Safe torque off function does not remove the voltage from the main and auxiliary
circuits. The function is not effective against deliberate sabotage or misuse.
WARNING! Use a grounding wrist band when you handle the printed circuit
boards. Do not touch the boards unnecessarily. The boards contain components
sensitive to electrostatic discharge.
WARNING! Obey these instructions. If you ignore them, equipment malfunction
and damage to the fiber optic cables can occur.
•
Handle fiber optic cables with care.
•
When you unplug the cables, always hold the connector, not the cable itself.
•
Do not touch the ends of the fibers with bare hands as the ends are extremely
sensitive to dirt.
•
Do not bend the fiber optic cables too tightly. The minimum allowed bend radius is
35 mm (1.4").