THORLABS SHB025 - Chapter 8 Troubleshooting

Ø1/4" Shutters and Controller Chapter 8: Troubleshooting
Page 16 TTN042240-D02
Chapter 8 Troubleshooting
See below for possible troubleshooting issues:
Problem
Solutions
Power LED not enabled after
pressing the Power ON
button.
Check the AC cord IEC connector is properly
connected to the switching power supply and that it is
connected to a live AC mains outlet.
Check DC plug is fully inserted into the controller's
DC jack labeled 5 VDC 2.4 A.
Shutter does not open or
close.
Check the SHB025(T) shutter cable 4 pin mini-DIN
plug has arrow facing up and is fully inserted into the
connector labeled OUTPUT.
Status LED turned amber.
In Protected Mode: Status LED should be green
under normal operating conditions, and turn amber
as a warning to state there are 15 seconds until
shutdown (at modulation frequencies of 16 to 50 Hz).
See Section 4.3.1.
Status LED turned red.
In Protected Mode: If modulation frequency is
>15 Hz, a timeout period is applied to disable the
shutter drive circuit after the 15 second amber LED
warning.
Shutter operation is erratic
or stuck.
Verify the shutter head is not located near magnetic
sources or directly against ferrous materials,
especially the front surface.
Unit powers on when DC
power is applied.
“Default to On” mode has been set. Follow steps in
Section 4.4 to disable.