10
Quick Reference Guide
Interlock connections
The Model 2520 has two interlock circuits, a remote interlock and a key interlock.
NOTE
Both interlocks must be enabled to operate; otherwise the source outputs will
not turn on.
A remote interlock switch should be wired to pins 1 and 9 of the REMOTE INTERLOCK
connector, as shown in
Figure 6
. (Connections can also be made between pins 1 and 5).
The switch must be configured to close contacts (ENABLED) to operate. The key must
also be inserted into KEY INTERLOCK and rotated to the ENABLED position to operate
the unit.
WARNING
If at any time the indicators provided on the testhead, for
INTERLOCK STATUS or LASER POWER ON, should fail to light or
to properly indicate status, immediately contact a Keithley service
representative for repair. Failure to do so may expose the user to
hazards without proper warnings.
Figure 6
Remote interlock connections
1
9
ENABLED
DISABLED
Pin 1
Pin 9
REMOTE
INTERLOCK
