Lockable Main Switch; Stored Charge; Separation Guard - Optimum OPTImill MH 25 SV Betriebsanleitung

OPTIMUM
M A S C H I N E N - G E R M A N Y
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.

1.9.4 Separation guard

Adjust the guard to the correct height
before you start working.
To do so, detach the clamping screw,
adjust the required height and re-tighten
the clamping screw.
A switch is integrated into the fixture of the
spindle protection which monitors that the
cover is closed.
INFORMATION
You cannot start the machine if the spindle
protection is not closed.
Img.1-2: Separation guard
MH25SV GB
Version 1.0.1 dated 2015-12-17 Original operating instructions Page 61