Newport FSM-300, User Manual

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System Components 37
for X (Pin 22) and/or Y_OL_CMD input for Y (Pin 24). These input are
single-ended. Ground pins are adjacent on Pins 23 and 25.
The Open Loop mode allow users to develop their own control systems.
In this mode, the FSM-CD300B controller/driver is only used as an
amplifier/driver, which converts voltage signals to current to drive the coils.
6.8 Maintenance & Service
Clanging sounds from the mirror head are normal when the unit is first turned
on, when a high step function is applied, or when the mirror is unpowered
and is shaken by hand. Such sounds are normal and occur when the mirror
hits its hard stops. They are not a sign of malfunction.
The FSM system does not require periodic maintenance or calibration. There
is no reason for a user to ever open the FSM-CD300B Controller/Driver unit.
Opening the unit would break a label and void the warranty. The only reason
for a user to open the FSM Mirror Head would be to replace the mirror. Any
repairs, if necessary, are to be done by Newport Corporation.
To clean the FSM-CD300B Controller/Driver unit, first unplug the unit. Then
wipe the exterior using a damp, soft cloth. Do not use solvents or detergents.
The best way to maintain cleanliness of the mirror is to protect it from dirt
in the first place. If the Mirror Head Assembly is to be stored, always install
the protective metal cover, as described in the section “Unpacking the FSM.”
Also, store the Mirror Head Assembly in a hermetically sealed zipped bag.
The mirror surface is delicate and scratches easily. A qualified optics
professional should do any mirror cleaning. To remove loose dust, gently
blow across the optical surface using a can of optical-grade compressed air.
You may also gently brush the surface with a clean, optical-grade dust brush.
In case of heavy contamination that would interfere with the operation of the
FSM system, a qualified optics professional may remove the front cover and
attempt to use some of the techniques described in the section “Care &
Cleaning of Optics” in Newport’s product catalog, the
Newport Resource.
In case of any mechanical contact with the optical surface, some scratches
are unavoidable.