NT PROPORTIONAL CONTROL VALVE, MODEL 6300
9
Entegris, Inc. | User Guide
Reverse Polarity Protection
The proportional control valve is
reverse polarity protected; connect-
ing 24 VDC power to any wire will not
harm the unit. To operate properly,
the polarity must be correct.
Over-voltage on any Wire (DC)
In the event of accidental application
of voltage greater than 24 VDC ±10%,
the proportional control valve will
withstand continuous 30 VDC on any
wire without compromising the unit.
Over-voltage on any Wire (AC)
The proportional control valve is not
designed to withstand the accidental
application of 110⁄220 VAC to any wire.
Application of AC voltage will damage
the unit.
Short Protection
The proportional control valve will
not be damaged or compromised in
any way if any combinations of wires
are shorted together.
Circuit Protection
Entegris recommends fusing
the input power line to the NT
Proportional Control Valve, Model
6300. Use a 2 Amp rated, time-lag
fuse for the proportional control
valve. Place the fusing on the input
power line to the unit at the equip-
ment electrical enclosure to ensure
that both the wiring to the unit and
the unit itself are protected from any
over-current condition. Best practice
is to locate the fuse away from the
typical liquid exposure or harmful
vapor areas. Locating the fuse within
the electrical enclosure shared by the
power supply enables accessibility for
troubleshooting or replacement.
ELECTRICAL CONNECTIONS
—
Pigtail Electrical Cable
Units specified with a pigtail electrical
connection are manufactured with a
permanently attached cable. Table 1
details the wire connections for the
proportional control valve with a
pigtail electrical cable.
Table 1. Wire connections –
pigtail cable
WIRE
COLOR
MARKER
NO.
FUNCTION
Red
2
+24 VDC
Black
8
Ground
(+24 VDC common)
Violet
6
Factory use only –
do not connect
White
7
Factory use only –
do not connect
Tan
10
Setpoint, current,
4–20 mA
Gray
12
Setpoint, common
Pink
11
Setpoint, voltage,
0–10 or 0–5 VDC
Green
9
Valve home input
Pigtail Cable