B722-40-880 Issue H
Page 16
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Technical data
2.10
Indicator LEDs
The DX pump has two indicator LEDs, shown in
Note:
If excessive electrical load is applied to the Normal output line, the Normal LED may illuminate.
2.11
Operating and storage environment
Table 11 - Indicator LEDs
LED
Description
Status LED
This yellow LED flashes with a 50% duty cycle at the
rotational frequency of the pump motor. At high speeds
it appears continuously on.
The LED switches off when the rotational speed is very
low or stopped.
In a fail condition this LED flashes in a sequence to
indicate error codes and can be used for fault finding.
Refer to
.
Normal LED
This green LED remains on all the time that the pump
rotational speed is above the Normal speed setting,
irrespective of whether the pump is accelerating or
decelerating.
Table 12 - Operating and storage environment
Range
Data
Ambient operating temperature range
5 °C to 40 °C
Ambient operating humidity range
10 to 90% RH (non-condensing)
Maximum operating altitude
2000 m
Ambient storage temperature range
-30 °C to 70 °C
