Xylem HVS 1.1 - 3.4 - Manual (Page 6)

6
1. Important safety instructions
Read and follow the operating instructions
and safety instructions carefully before
starting operations! All modifications must be
done by qualified technicians!
In addition to the instructions contained in these operating instructions please pay
attention to universal safety and accident prevention regulations.
Warns that failure to observe the precaution may cause electric shock.
Warns that failure to observe the precaution may cause personal injury
or damage to property.
The HYDROVAR sensorless has to be disconnected from the power supply before any work
can be carried out in the electrical or mechanical part of the system.
Installation, maintenance and repair work may only be carried out by trained, skilled and
qualified personnel.
Unauthorised modifications or changes to the system make all guarantees null and void.
When in operation the motor can be stopped by remote control, where by the HYDROVAR
sensorless and the motor remain under voltage. For safety reasons, the unit must be
disconnected from the power supply when carrying out work on the machinery as locking
out the equipment by switching off the release mechanism or set value cannot prevent
accidental starting of the motor.
When the HYDROVAR sensorless is connected to power supply, the
components of the power unit as well as certain components of the master
control unit are also connected to the power supply.
Touching these components seriously endangers life!
Before removing the HYDROVAR sensorless 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
sensorless (the capacitors in the intermediate circuit have to be discharged
by the installed discharge resistors first).
Voltages of up to 400 volts are possible (if there are faults it can be higher).