Edwards nEXT400 User Manual

Make sure that the qualied person does the electric
al installaon. Do the electrical
connecons of the pump aer the pump is installed on the vacuum system. Disconnect
all electrical connecons from the pump before you remove it from the vacuum system.
Do the grounding of the pump using the given connecon. Refer to Ground the
connecons on page 44.
You can operate the pump using the manufacturer's TIC Turbo Instrument Controller,
TIC Turbo Controller (refer to Connect the logic interface to the TIC on page 44) or using
the customer system. Refer to Connect the logic interface to the customer control
equipment on page 44 for informaon about control. Refer to Connect the electrical
supply on page 45 for instrucons on how to connect the electrical supply.
4.5.1 Ground the connecons
We recommend you to install a separate ground conductor to ground the pump. Use the
braided wire that is not insulated or a separate insulated green / yellow connector with
a minimum 10 AWG (5.3 mm
2
) conductor (to comply with US and Canadian installaon
codes), M5 x 10 screw and shake proof washer supplied (installed to the ground hole of
the pump) to install the ground conductor to the pump. The impedance between the
pump body and the earth connecon point must be < 0.1 Ω.
4.5.2 Connect the logic interface to the TIC
If the manufacturer's TIC Turbo Instrument Controller or a TIC Turbo Controller is used to
power and control the pump, connect the pump logic interface cable into the back of
the TIC. Refer to the TIC Instrucon Manual for more informaon.
If the TIC is to be used to control the pump, make sure that the RS485 / RS232 slide
switch is in RS232 posion. Refer to Connect the serial interface to the customer control
equipment on page 47. If the switch is in the RS485 posion:
▪ the TIC will connect to the pump in parallel mode (that shows the pump type as
nEXTp)
▪ the serial connecon is disabled
▪ start and stop is possible.
4.5.3 Connect the logic interface to the customer control equipment
If you operate the pump with the customer control system, use an applicable connector
mang half (not supplied) to connect the control equipment to the connector on the
logic interface cable (refer to Table: Logic interface technical data). Refer to Table: Logic
interface connector pins for full details of the logic interface connector pins when you do
the electrical connecons to the pump given in the secons that follows.
You can control the pump with a hardware parallel control interface or through the
commands sent over a serial interface.
If you control the pump with the hardware parallel interface, refer to Connect the
parallel control and monitoring on page 46 for more informaon. If the serial interface is
used, refer to Connecon for serial control and monitoring on page 47. The logic
interface gives the facility to work with a mixture of parallel and serial control. Refer to
Connecon for mixed parallel and serial operaon on page 56.
04/2022 - ©Edwards Limited
Page 44B80000880_G
B80000880_G - Inst
allaon

Edwards nEXT400 Specifications

General

Brand	Edwards
Model	nEXT400
Category	Water Pump
Language	English