Optimum 3338180 Betriebsanleitung Seite 68

CAUTION!
The spindle continues to rotate for a
while, depending on the moment of
inertia of the spindle and the tool in
use.
The emergency stop button brings the
machine to a standstill.
Turn the knob to the right to unlock and
release the emergency stop button.
1.9.2 Lockable master switch
The lockable master switch can be
secured in the "0" position by means of
a padlock to guard against the milling
machine being switched on accidentally
or by an unauthorised person.
The power supply is cut off when the
master switch is in the off position.
Except for the areas marked by the pic-
togram in the margin.
WARNING!
Dangerous voltage even if the main switch is switched off. The areas marked by the
pictogram might contain live parts, even if the master switch is switched off.
1.9.3 Stored charge on MH50V
WARNING!
The frequency converter of MH50V contains capacitors that remain charged with a potentially
lethal voltage after the machine has been isolated from the mains. If the frequency controller
was under power, it must be disconnected from the power supply for at least 10 minutes.
Before continuing to work, ensure there is no voltage. Normally, the capacitors are discharged
by an internal resistor. In certain unusual error conditions, it is possible that the capacitors are
not discharged or that a discharge is prevented by voltage on the adjacent motor connection
terminals. If the frequency converter has a technical defect, so that nothing is shown on the dis-
play, the capacitors may not be discharged.
EN
MH50G│MH50V
68
Emergency stop
push button
Img.1-2: Main switch
Translation of original instruction
Img.1-1: Emergency stop button
Main switch
Version 1.0.5 - 2021-01-29