Xylem HYDROVAR HV 4.150 / 4.185 / 4.220 - Manual (Page 5)

5
1 Important safety instructions
Read and follow the operating and safety instructions carefully
before starting operations!
All modifications must be done by qualified technicians!
Warning that failure to observe the precaution may cause electric shock
Warning that failure to observe the precaution may cause personal injury or
damage to property.
In addition to these operating instructions please pay attention to universal safety
and accident prevention regulations.
Basically the HYDROVAR must be disconnected from the power supply before any work can
be carried out on the electrical or mechanical part of the system.
Installation, maintenance and repair work may be carried out only by trained, skilled and
qualified personnel.
Unauthorized modification or changes to the system make all guarantees null and void.
During operation, the motor can be stopped by opening a digital input or manual
operation whereby the HYDROVAR and the motor remain under voltage. For safety
reasons, the HYDROVAR has to be disconnected from the power supply when carrying out
work on the machinery.
When the HYDROVAR is connected to the power supply, the components of
the power unit as well as certain components of the control unit are
connected directly to mains.
Touching these components seriously endangers life!
Before removing the HYDROVAR cover the system must be disconnected from
the power supply. After switching off the power supply wait
at least 5 minutes before starting work on or in the HYDROVAR (the
capacitors in the intermediate circuit are discharged by the internal discharge
resistors).
Voltages of up to 800 volts are possible (in case of error these also can be
higher)