Residual Hazards - Lenze E70AC Series Hardware Manual

2 Safety instructions

Residual hazards

Commissioning and operation
Before commissioning after longer storage periods, measure insulation resistance. In case
of values £ 1 kW per volt of rated voltage, dry winding.
For trial run without output elements, lock the featherkey. Do not deactivate the
protective devices, not even in a trial run.
Check the correct operation of the brake before commissioning lowvoltage machines with
brakes.
Integrated thermal detectors do not provide full protection for the machine. If necessary,
limit the maximum current. Parameterise the controller so that the motor will be switched
off with I > I
Vibrational severities v
acceptable if the clutch is activated.
If deviations from normal operation occur, e.g. increased temperatures, noises, vibrations,
find the cause and, if required, contact the manufacturer. In case of doubt, switch off the
lowvoltage machine.
If the machine is exposed to dirt, clean the air paths regularly.
Shaft sealing rings and roller bearings have a limited service life.
Regrease bearings with relubricating devices while the lowvoltage machine is running.
Only use the grease recommended by the manufacturer. If the grease drain holes are
sealed with a plug, (IP54 drive end; IP23 drive and nondrive end), remove plug before
commissioning. Seal bore holes with grease. Replace prelubricated bearings (2Z bearing)
after approx. 10,000 h 20,000 h, at the latest however after 3 4 years.
The product−specific safety and application notes given in these instructions must be
observed!!
2.3 Residual hazards
Protection of persons
Before working on the controller, check whether all power terminals are deenergised
ƒ
because
– depending on the controller − the power terminals U, V, W, +UG, −UG, Rb1, and Rb2
carry hazardous voltages for up to 3 to 30 minutes after power−off.
– the power terminals L1, L2, L3; U, V, W, +UG, −UG, Rb1 and Rb2 carry hazardous
voltages when the motor is stopped.
Device protection
Connect/disconnect all pluggable terminals only in deenergised condition!
ƒ
Detach the controllers from the installation, e.g. from the rear panel of the control
ƒ
cabinet, only in deenergised condition!
18
after a few seconds of operation, especially at the risk of blocking.
rated
£ 3.5 mm/s (P
eff
l
£ 15 kW) or 4.5 mm/s (P
rated
> 15 kW) are
rated
EDS700ACBA EN 5.1