Emergency Stop Mushroom Button; Lockable Main Switch; Stored Charge - Optimum OPTimill MH 25 SV Operating Manual

remove them completely. Always work carefully and observe the limits of your machining pro-
cess.
1.9.1

Emergency stop mushroom button

CAUTION!
The spindle continues to rotate for a
while depending
moment of inertia of the spindle and
the tool.
The emergency stop mushroom button
brings the machine to a standstill.
Turn the knob to the right to unlock and
release the emergency stop mushroom
button.
CAUTION!
The emergency stop mushroom button may only be activated in an emergency. An
operational shut-down of the machine must not be executed using the emergency stop
mushroom button.
1.9.2

Lockable main switch

In the "0" position, the lockable main switch can be secured with a padlock against accidental or
non-authorised switching on.
When the main switch is turned off, the power supply is interrupted.
The exceptions are the areas marked by the pictogram in the adjacent margin.
WARNING!
Dangerous voltage even if the main switch is switched-off. The areas marked with the
pictogram in the margin may contain live voltage, even if the main switch is in the off
position.
1.9.3

Stored charge

WARNING!
The frequency converter and controls of the feed contain capacitors that remain charged to a
potentially lethal voltage after the machine has been disconnected from the power supply. If the
frequency controller was under power, it must be disconnected for at least 10 minutes from the
power supply. 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 the discharge is prevented by voltage in the adjacent
motor connection terminal. If the frequency converter has a technical defect, so that nothing is
shown on the display, it is possible that the capacitors are not discharged.
EN
MH25SV
14
on the mass
Emergency stop
Mushroom Switch
Translation of original operating manual
Img.1-1: Emergency stop mushroom button
Version 1.0.4 - 2020-12-15