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INQL3-MAR09
03/03/09 WW
Pneumatic Connections
CAUTION:
USE ONLY THE THREAD SEALANT
PROVIDED. OTHER SEALANTS SUCH AS PTFE
TAPE AND PTFE PASTE CAN MIGRATE INTO THE
FLUID SYSTEM CAUSING FAILURES.
1. The valve can be mounted in any position without af-
fecting performance. A variety of mounting brackets
(QBT-01, QBT-02, and QBT-03. SEE ordering info)
can be used to attach valve to a panel or wall surface.
2. A typical 40 micron in-line filter is recommended on
the inlet of the QL3 valve. This is available from Pro-
portion-Air as part number FPP-2.
3. A 1/16” plug is supplied with the valve. It can be used
to plug the “Alternate Exhaust Port” if the exhaust
media should be captured or when the valve is used for
vacuum or vacuum through positive pressure control.
See Figure 1 for port location.
Positive Pressure Units
1. Connect supply pressure to the “I” port (Figure 1) not
to exceed rated supply pressure. (See TABLE 1)
2. Connect the outlet “O” port (Figure 1) to the device
being controlled.
3. The “E” exhaust port can be plumbed to a point out-
side the work area, fitted with a muffler or left open to
atmosphere as the application dictates.
4. Proceed with electrical connection.
CONNECTION PROCEDURE
Electrical Connections
1. Turn off all power before making electrical connec-
tions.
2. Identify the valve’s command input and analog output
using the calibration card included in the package and
the ordering information section on the last page of
this sheet.
3. Proceed to the appropriate section corresponding to the
type of valve being installed.
NOTE: ALL COLOR CODES RELATE TO QL3'S
ORDERED FROM THE FACTORY WITH PRE-
ASSEMBLED QBT-C-X CABLES.
Voltage Command Valves (TFEE)
All voltage command QB3's use a single ended command, mean-
ing the DC Common serves as both the power and command
common.
Current Command Valves (TFIE)
All current command QL3's use a differential current loop scheme
(not isolated), meaning current flow is from Pin 4 to Pin 2 on the
QL3 valve. Some applications may require the common of the
power supply that provides loop power for the 4-20mA command
to be tied to power supply common. The following diagram
shows the correct connection for conventional current flow.
PIN 2 {BLUE}
4-20MA COMMAND (-)
PIN 4 {WHITE}
4-20MA COMMAND (+)
PIN 1 {GREEN}
DC COMMON (-)
PIN 6 {BLACK}
DC POWER (+)
PIN 4 {WHITE}
0-10 Vdc COMMAND (+)
PIN 1 {GREEN}
DC COMMON (-)
PIN 6 {BLACK}
DC POWER (+)
POWER AND
COMMAND
Current Monitor Valves
(TFEC or TFIC SINKING OUTPUT)
Use the following wiring diagram for QL3 valves with a current
sinking monitor output.
-
+
PIN 6 {BLACK}
DC POWER (+)
PIN 5 {RED}
4-20mA MONITOR (-)
MA
METER
Voltage Monitor Valves
(TFEE or TFIE)
Use the following wiring diagram for QL3 valves with a voltage
monitor output.
PIN 1 {GREEN}
DC COMMON (-)
-
+
PIN 5 {RED}
0-10V MONITOR (+)
V
METER
PIN 6 {BLACK}
DC POWER (+)
Current Monitor Valves
(TFES or TFIS SOURCING OUTPUT)
Use the following wiring diagram for QL3 valves with a current
sourcing monitor output.
-
+
MA
PIN 1 {GREEN}
DC COMMON (-)
METER
PIN 5 {RED}
SIGNAL OUT
Courtesy
of
CMA/Flodyne/Hydradyne
▪
Motion
Control
▪
Hydraulic
▪
Pneumatic
▪
Electrical
▪
Mechanical
▪
(800)
426-5480
▪
www.cmafh.com
