Abnormality | Operation state of safety | Lamp indication | REMOTE | State of the STP pump | Probable causes of an |
/Error | functions | output signal | abnormality/error | ||
Overheating | Temperature of the STP | "OVER | "ALARM" | The STP pump stops. | Abnormal baking temperature. |
inside the | pump motor: 110 ℃ or | TEMPERATURE" |
|
| Insufficient cooling. |
STP pump | more | "FAILURE" |
|
| Leakage of vacuum equipment |
|
|
|
|
| or piping. |
|
|
|
|
| Continuous repetition of |
|
|
|
|
| startup/shutdown. |
|
|
|
|
| |
|
|
|
|
| temperature. |
Overheating | 90℃ or more in the STP | "FAILURE" | "ALARM" | The STP pump stops. | Failure in the cooling fan. |
inside the | control unit and heat sink. |
|
|
| Shielding of cooling air inlet |
STP control |
|
|
|
| and ventilation port. |
unit |
|
|
|
| |
|
|
|
|
| temperature |
Overspeed | Rotational speed of the STP | "FAILURE" | "ALARM" | The STP pump stops. | Failure in the inverter. |
| pump:37,500 rpm or more. |
|
|
|
|
Abnormal | Battery terminal voltage: | "FAILURE" *2 | "ALARM" | The STP pump does not start. | Incorrect connection of the |
battery | 42 V or lower*1 | ("EMERGENCY |
|
| battery. |
terminal |
| OPERATION" or |
|
| Battery capacity became less |
voltage |
| "BATTERY NG" |
|
| than operating limit value. |
|
| lamp may light) |
|
|
|
*1 : When capacity of battery is less than operating limit value largely, there may be the thing that battery abnormal detection does not operate.
*2 : When the power is turned on again, this lamp goes out.
