User guide

ENTEGRIS, INC. Customer Service Tel. [phone] Customer Service Fax [phone]
NT® INTEGRATED FLOW CONTROLLER WITH DEVICENET™ COMMUNICATION USER GUIDE
The power supply must provide
continuous 1.0 A (nominal) current
for each flow controller installed.
Peak power consumption is 1.2 A,
maximum.
The power supply to the flow con-
troller must provide clean power to
the unit and must be used only to
power similar measurement-type
devices. The power supply must not
be used to power other inductive
loads, such as motors, relays or sole-
noids. These devices may produce
electrical transients that may affect
unit measurements. An induced
power spike, creating an interrup-
tion in power greater than 10 msec
in duration, may cause the unit to
reset.
DeviceNet
TM
Cable
The power supply range of the
DeviceNet
TM
cable is 24 VDC ±10%,
150 mA nominal current.
In addition to providing clean power,
all power communication cables
must not be run within the same
conduit or cable along with heavy
current demands from motors,
charging capacitors or other induc-
tive loads. This may cause a voltage
change within the instrumentation
signal line, causing erroneous output
readings from the flow controller.
Loss of power will not cause the loss
of any system parameters or calibra-
tion values.
DeviceNet
TM
Communication
The DeviceNet
TM
communication
shall meet the physical layer com-
munications requirements in the
referenced ODVA DeviceNet
TM
stan-
dard. Briefly, this is a 5 wire (V+,
V-, CAN_H, CAN_L, Drain) physical
layer based on the CAN protocol.
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