Edwards nEXT730D User Manual

default sengs for a normally open v
ent valve and Aux output 2 has default sengs for
a fan.
Edwards nEXT air coolers and vent valve accessories (refer to Accessories), which have
the corresponding connector ed, are pre-congured to Aux output 1 and Aux output
2 for convenience and to provide plug and play ability. nEXT vent valves are pre-
congured to Aux output 1 and the default seng for vent opons 1 are appropriate for
this type of accessory. nEXT air coolers are pre-congured to Aux output 2 and the
default seng for vent opons 2 are appropriate for this type of accessory.
Bare wire versions of the nEXT air coolers and vent valve accessories are available, which
are not pre-congured. This enables any combinaon of accessory to be used and
independently congured and controlled on Aux output 1 and Aux output 2.
Figure 14 Valve connector
Pin number Signal Polarity
1 0V return Negave
2 Aux output 1 Posive
3 Aux output 2 Posive
4 Chassis Chassis
4.14 Indicator LEDs
The nEXT pump has sev
en indicator LEDs. Refer to Figure: controller view.
Table 14 Indicator LEDs
LED Descripon
Normal LED
This green LED illuminates when the pump rot
aonal speed is
above the normal speed seng, irrespecve of whether the
pump is accelerang or decelerang.
Status LED
This yellow LED ashes with a 50% duty cycle at the rotaonal
frequency of the pump motor. At high speeds it appears con-
nuously illuminated. The LED switches o when the rota-
onal speed is very low or stopped. If a service is due, this
LED ashes in a sequence to indicate which service operaon
is required. Refer to Fault nding on page 96.
08/2021 - ©Edwards Limited
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B8J200880_D - Technical data

Edwards nEXT730D Specifications

General

Brand	Edwards
Model	nEXT730D
Category	Water Pump
Language	English