Edwards STP Series

STP-iXR1606 Turbomolecular Pump
MT-79E-001-D
Page 56
4
OPERATION
4.8 LED
Three LEDs indicate the pump’s operational state.
LED
Power on
state
(Levitation
state)
Acceleration
state
Deceleration
state
Warning/
Failure state
POWER
(green)
Steady green Steady green Steady green Steady green
(OFF only at power
failure)
ROTATION
(green/orange)
Extinguishes Green Orange See left
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)
FAILURE
(orange/red)
 Warning state: Flashing orange
(The flashing pattern of the LED indicates the type of warning.
See Section 7, "WARNING Function")
 Failure state: Flashing or steady red
(The flashing pattern of the LED indicates the type of failure.
See Section 7, "WARNING Function")
Table 11 - LED Indications for each state
ON
OFF
2,000 to 10,000 rpm
(2 flashes)
10,000 to 20,000 rpm
(3 flashes)
20,000 to
33,0
00 rpm
(Continuous flash)
33,000 to 36,500 rpm
or Normal operation state
(Steady)
1 cycle
2,000 rpm or moe
(1 flash)
消灯
OFF
OFF
OFF
ON
ON
ON
ON
LED luminescent color
Acceleration state: Green
Deceleration state: Orange
Figure 30 - "ROTATION" LED Indication