Mode Cleaner Suspensions
Each MC suspension has 4 coils and 2 pico-motors (pitch, yaw).
ETM
Each iKAGRA ETM suspension has 4 coils and 4 pico-motors connected.
If the coil-magnet actuator seems to have a problem, please check 2 things.
- Coil drivers in particular for Y-end had a loose connection with power line (-18V, -15V).
Please check the LED on coil driver. If the LED is out, try to fasten the power line.
- Sometimes watchdog? system stop the output current from the coil driver in order to
protect mechanical system.