OPTIMUM
M A S C H I N E N - G E R M A N Y
Version 1.0.1 dated 2015-12-17
Page 54
Original operating instructions
MH25V
GB
1.9.1
Emergency stop button
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.
Img.1-1:
Emergency stop button
CAUTION!
Only press the emergency stop button in a genuine emergency. Do not use the
emergency stop button to stop the machine during normal operation.
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.
This excludes the points marked in the pictogram.
WARNING!
Dangerous voltage even if the main switch is switched off. The areas marked by the
pictogram might contain live parts, even if the main switch is switched off.
1.9.3 Stored charge
WARNING!
The frequency converter contains capacitors that remain charged with a potentially lethal volt-
age 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 continu-
ing 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 display, the capaci-
tors may not be discharged.
Emergency stop
hit switch
