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S30XL-LESA/LDMX
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name | description | source | units | nominal value |
---|---|---|---|---|
T | air temp in SVT box | dry air sensor | C | between SVT and room temps |
RH | relative humidity in SVT box | dry air sensor | % | near or below 0 |
dew | dewpoint in SVT box | dry air sensor | C | -50 or below |
fl | flow switch state | flow switch | boolean | 0 (flow above setpoint) |
fS | FEB chiller serial link | serial port | boolean | 1 (OK) |
sS | SVT chiller serial link | serial port | boolean | 1 (OK) |
fT | FEB chiller temp | FEB chiller serial link | C | setpoint +/- 0.1 |
fSP | FEB chiller setpoint | FEB chiller serial link | C | 20 - 30 |
fFl | FEB chiller flow | FEB chiller serial link | gpm | 0.3 |
fF | FEB chiller fault code | FEB chiller serial link | 0 (no errors) | |
sC | SVT chiller state | SVT chiller serial link | boolean | 1 (running) |
sT | SVT chiller temp | SVT chiller serial link | C | setpoint +/- 0.2 |
sSP | SVT chiller setpoint | SVT chiller serial link | C | -20 - 20 |
sPw | SVT chiller power | SVT chiller serial link | % full power | 15 - 30 |
sP | SVT chiller pressure | SVT chiller serial link | bar | 1.5 - 2.0 |
io1 | BNC input voltage 1 | BNC jack | V | 0 - 5.0 |
Alarm in | Alarm cleared | Cause | MPOD trip? |
---|---|---|---|
Alarm: flow switch trip | Event: flow switch cleared | Flow at FEB chiller return below setpoint (~15 GPH), or switch unplugged | yes |
Alarm: dewpoint trip | Event: dewpoint trip cleared | dewpoint above -10 C, or sensor unplugged | no |
Alarm: SVT chiller stopped | Event: SVT chiller running | SVT chiller responds with "0" (not running) to "in_mode_05" | yes |
Alarm: SVT serial bad | Event: SVT serial OK | no response, or unparseable response, to last 5 messages | yes |
Alarm: FEB serial bad | Event: FEB serial OK | no response, or unparseable response, to last 5 messages | no |
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