Edwards nEXT 55, Instruction Manual

Page: 46 / 116

You can operate the pump using the manufacturer's TIC Turbo Instrument Controller, TIC
Turbo Controller, TAG Controller or by the customer supply and controlled using the
customer system. Refer to Connect the logic interface to the control equipment on page
46 for information about control. Refer to Connect the electrical supply on page 47 for
instructions on how to connect the electrical supply.
4.4.1 Ground the connections
We recommend you to install a separate ground conductor to ground the pump.
Ground the pump using the given connection. Refer to
Figure: Dimensions - nEXT85
ISO63 , Figure: Dimensions - nEXT85 CF63 , Figure: Dimensions - nEXT85 ISO100 , Figure:
Dimensions - nEXT85 DN40 , Figure: Dimensions - nEXT55D ISO63 NW16 80W and Figure:
Dimensions - nEXT55D CF63 NW16 80W .
Use the braided wire that is not insulated or a separate insulated green / yellow
connector, an M5 x 10 screw and shake proof washer supplied (installed to the ground
hole of the pump) to install the ground connector to the pump. The size and rating of
the ground conductor has to be sufficiently large to protect against other equipment in
the customer system. The impedance between the pump body and the ground
connection point must be < 0.1 Ω.
4.4.2 Connect the logic interface to the TIC or TAG
If the manufacturer's TIC Turbo Instrument Controller, TIC Turbo Controller or TAG
Controller is used to power and control the pump, connect the pump logic interface
cable into the back of the TIC or TAG. Refer to the TIC or TAG Instruction Manuals for
more information.
If the TIC or TAG is to be used to control the pump, make sure that the RS485 / RS232
slide switch is in the RS232 position. Refer to Connect the serial interface to the customer
control equipment on page 49. If the switch is in the RS485 position:
▪ the TIC will connect to the pump in a parallel mode (that shows the pump type as
nEXTp)
▪ the serial connection is disabled
▪ start and stop is possible
▪ the TAG will not connect to the pump or control the pump.
4.4.3 Connect the logic interface to the control equipment
If you use your own control system to operate the pump, use an applicable connector
mating half (not supplied) to connect the control equipment to the connector on the
logic interface cable.
Refer to
Table: Logic interface connector pins for the details of the logic interface
connector pins, when you do the electrical connections to the pump.
Refer to
Table: Logic interface technical data .
07/2021 - ©Edwards Limited Page 46 B8G000880_E
B8G000880_E - Installation