15
K-Cube Solenoid Controller
3.4.2 Using the Safety Interlock
To comply with laser safety regulations, the Solenoid Controller K-Cube is fitted with
a remote INTERLOCK connector located on the rear panel (see Fig. 3.2). A short
circuit must be applied across the terminals of this connector before the unit can be
enabled.
An INTERLOCK jack plug is supplied with the unit to close this connection.
Alternatively, the contact can be controlled externally; the user can use a custom
3.5mm jackplug connected to a remote actuated (normally open) switch (e.g. an open
door indicator), which must be closed before the unit can operate. See Fig. 3.5 for
wiring details.
Fig. 3.5 Remote actuated interlock wiring.
Caution
If it is controlled externally, the INTERLOCK contact is taking the solenoid
drive current. This current is dependent upon the solenoid being driven
but could as high as 2A peak.
Caution
DO NOT connect/disconnect the interlock jackplug with power applied to
the unit.
If the unit is being operated in a trigger mode, the interlock controls the
output of the master unit in the normal way. However, if the interlock is
removed from the master unit, the slave unit will still function unless its
interlock is also removed.
Switched short circuit between
tip and center connection
