STP-iS1607 Series Turbomolecular Pump
4.8 LED
Three LEDs indicate the pump’s operational state.
Power on
state
(Levitation
state)
Steady green
(OFF only at power
failure)
2,000 rpm or less: 1 flash
2,000 to 10,000 rpm: 2 flashes
10,000 to 20,000 rpm: 3 flashes
20,000 to 33,000 rpm:
Continuous flash
33,000 to 36,500 rpm
or under normal operation:
Steady (see Figure 30)
• Warning state: Flashing orange
(The flashing pattern of the LED indicates the type of warning.
See Section 7, "SAFETY FUNCTIONS")
• Failure state: Flashing or steady red
(The flashing pattern of the LED indicates the type of failure.
See Section 7, "SAFETY FUNCTIONS")
Table 11 - LED Indications for each state
2,000 to 10,000 rpm
(2 flashes)
10,000 to 20,000 rpm
(3 flashes)
20,000 to 33,000 rpm
(Continuous flash)
33,000 to 36,500 rpm
or Normal operation state
(Steady)
2,000 rpm or moe
(1 flash)
LED luminescent color
Acceleration state: Green
Deceleration state: Orange
Figure 30 - "ROTATION" LED Indication