Identifying Process Air Temperature Controller LED Indicators
| Indicator | Name | Description | ||
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| PV | Process Value | During normal operation, the process value (PV) | ||
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| Numeric LED | numeric LED indicator displays the process |
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| temperature at the To Process thermocouple. It | ||
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| also lists parameters during setup and error |
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| messages if any errors occur. |
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| SV | Set Value | During normal operation, the set value (SV) | ||
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| Numeric LED | numeric LED indicator displays the process set |
| 8.8.8.8 |
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| point temperature selected for the dryer. The dryer | |
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| then maintains this set point temperature. This |
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| LED indicator also displays parameter and |
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| function values during configuration setup. |
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| OUT1 | Out 1 LED | Lit when Control Output 1 is on. The Out1 | ||
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| indicator lights when the controller signals the |
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| process heaters to be energized. |
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| OUT2 | Out 2 LED | Lit when Control Output 2 is on. Not used in | ||
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| this application. |
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| AT | AT LED | Flashes during | ||
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| screen. |
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| Indicator | Name | Description | ||
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| ALARM1 | ALARM 1 LED | Lights in the Operation Indicator Section when | ||
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| the output function assigned to auxiliary output |
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| 1 turns on. The ALARM1 indicator lights when |
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| the process temperature falls below the set point |
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| temperature by more than the alarm deviation |
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| value. Advisory alarm does not interrupt operation |
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| of the dryer. |
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| Indicator | Name | Description | ||
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| ALARM2 | ALARM 2 LED | Lights in the Operation Indicator Section when | ||
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| the output function assigned to auxiliary output |
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| 1 turns on. The ALARM2 indicator lights when |
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| the process temperature exceeds the set point |
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| temperature by more than the alarm deviation |
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| value. Alarm output |
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| Heaters |
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| within the acceptable range. |
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Large Dehumidifying Dryers | Controls | 28 |