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How to Manually Control the Shim Switch Heaters
We usually use the Magnet PS VI to control the shim switch heaters. In case of emergency, you can manually control them as follows:
- Unplug the power cable of the Ethernet relay (SR-201), which is located at the back side of the Shim PS.
- Turn on/off the switch heaters using by turning on/off the key switch in front of the Shim PS.
The cables for the switch heaters are connected to the NC (normally-closed) pins of the Ethernet relay. Thus the cables get connected when the Ethernet relay is not powered.
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