1.1 At a Glance
LDC340 / Page 2
A wide variety of protection features protect the laser diode from damage.
These features are:
•
Key-operated power switch
Prevents unauthorized switching on of the laser diode.
•
Softstart
The switch on delay of the softstart function protects the laser diode against
undesired peaks.
•
Limit for the injection current (hardware limit)
A manually adjustable current limit limits the maximum allowed laser current. The
limit value can be set with a 25-turn potentiometer on the front panel.
•
Interlock
The interlock input enables to realize several protection functions simultaneously.
•
Safety lock to prevent unintentional use
•
Cable damage monitoring
•
An external emergency switch may be connected
•
Application of external automatic protection equipment, e.g. for the temperature of
cooling water
•
ON/OFF LED of the laser diode
The laser can only be operated with the interlock input being closed.
(Refer to chapter 3.2.2, “Using the interlock input“ starting on page 16)
•
Contact protection of the laser diode (open circuit)
If the line to the laser is interrupted even for a short time during operation an
emergency switch off is immediately released.
•
Electronic short-circuit switch for the laser diode
With the current module switched off an electronic switch will shortcircuit the laser
diode so that no voltage is applied to the laser contacts.
•
Control LED for laser current being active
When the laser current is switched on an LED in the switch LD ON lights up.
