Table 15.5 Troubleshooting When Any of Abnormality/Error Warning Lamp Lights
PROCEDU | Lamp Being Lit | Probable Causes | Countermeasures | Referred |
RE No. |
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| Section |
No.1 | “OVER | (1) Incorrect connection of | Connect cables correctly. | 4.4.2 |
| TEMPERATURE” | the STP connection | If the cable connector is not |
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| “FAILURE” | cable. | locked, lock it securely. |
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| “EMERGENCY |
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| OPERATION” |
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No.2 | “OVER | (1) Overheat inside the STP |
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| TEMPERATURE” | pump: |
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| “FAILURE” | 1) Overheat during | 1) Set the temperature of the | 7.3 |
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| baking. | baking heater to 120 C or |
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| 2) Insufficient cooling. | lower. | 7.2 |
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| 2) At the time of baking or gas | ||
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| suction, always cool the STP |
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| 3) Leakage of the | pump. | 3.3.4 |
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| 3) Check the piping system for | ||
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| vacuum piping | leakage. |
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| system. |
| 5.2 |
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| 4) Repetitious start/stop | 4) Repetitious start/stop | |
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| operations. | operations may cause the |
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| STP pump to overheat. |
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No.3 | “BATTERY | (1) Power failure. | Check a power failure. | 6.1.1 |
| OPERATION” |
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| “EMERGENCY |
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| OPERATION” |
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No.4 | “FAILURE” | (1) Incorrect connection of | Connect the cable correctly. If | 4.4.2 |
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| the emergency vent. | the cable connector is not |
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| valve cable. | locked, lock it securely. |
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| (2) When the rated operation |
| 6.1.4 |
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| does not start approx. 15 |
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| minutes after start |
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| operation is executed: |
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| When the |
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| ACCELERATION state |
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| continues for approx. 15 |
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| minutes: | 1) Use the maximum working | 3.3.4 |
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| 1) Insufficient pressure at | ||
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| the inlet port. | pressure or less. | 16.1 |
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| 2) Insufficient pressure at | 2) Use the allowable backing | 3.3.4 |
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| the outlet port. | pressure or less. | 16.1 |
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| 3) Leakage of the piping | 3) Check the piping system for | 3.3.4 |
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| system. | leakage. | 3.3 |
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| 4) Failure of the auxiliary | 4) Check the auxiliary pump | |
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| pump. | for its capacity and START | 16.1 |
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| state. |
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| (use a pump with the |
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| recommended capacity or |
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| more). | 4.4.2 |
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| 5) Incorrect connection of | 5) Connect the cable correctly. | |
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| the motor connection | If the cable is not locked, |
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| cable. | lock it securely. |
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