5
Error Messages
This chapter describes some of the warning messages that may ap-
pear on the alphanumeric display.
In This Chapter
5.1
Laser Diode Driver Messages . . . . . . . . . . . . . . 5 – 2
5.1.1
Interlock . . . . . . . . . . . . . . . . . . . . . . 5 – 2
5.1.2
Transitions with high photodiode current . . . 5 – 2
5.1.3
Transitions with limited laser current . . . . . 5 – 2
5.1.4
Transitions locked out . . . . . . . . . . . . . . 5 – 2
5.1.5
Responsivity . . . . . . . . . . . . . . . . . . . 5 – 3
5.1.6
Photodiode current overflow . . . . . . . . . . 5 – 3
5.1.7
Responsivity underflow . . . . . . . . . . . . . 5 – 3
5.1.8
Responsivity overflow . . . . . . . . . . . . . . 5 – 4
5.1.9
Trip-o
ff
from TEC . . . . . . . . . . . . . . . . . 5 – 4
5.1.10 Trip-o
ff
from temperature . . . . . . . . . . . . 5 – 4
5.2
TEC Messages . . . . . . . . . . . . . . . . . . . . . . . 5 – 4
5.2.1
Autotune . . . . . . . . . . . . . . . . . . . . . . 5 – 4
5.2.2
No loop control . . . . . . . . . . . . . . . . . . 5 – 5
5.2.3
Transitions locked out . . . . . . . . . . . . . . 5 – 5
5.2.4
Temperature faults . . . . . . . . . . . . . . . . 5 – 6
5.2.5
Thermal runaway . . . . . . . . . . . . . . . . . 5 – 6
5.2.6
Polarity change locked out . . . . . . . . . . . 5 – 6
5.3
Other messages . . . . . . . . . . . . . . . . . . . . . . 5 – 6
5.3.1
Restart . . . . . . . . . . . . . . . . . . . . . . . 5 – 6
5 – 1
