StoneL Prism PI - Page 15

StoneL publication 105431revC
7 PI 70 en Prism PI | 15
4.1.4 Expeditor, long stroke (81S & 81W) continued
Description of operation
The Prism Expeditor is a valve monitoring and control package for
linear actuators that provides open/closed, intermediate positioning,
and valve position feedback functionality. Basic operation and
intermediate control is accomplished by 24VDC and a 4-20mA
output signal from a control system.
Basic operation
The Prism Expeditor module is powered through the VDCIN terminals
and 24VDC must be present in order to calibrate the unit. The
CNTRLIN signal is also required for basic operation of the unit.
To stroke the valve fully closed position, apply a 4mA signal. To stroke
the valve fully open, apply a 20mA signal.
Intermediate position control
Intermediate positioning is accomplished by varying the 4-20mA
signal between 7.2mA and 16.8mA.
Position feedback
The Prism Expeditor long stroke provides two dierent valve position
feedback signals, a 4-20mA signal and two discrete sensor signals for
valve open and valve closed.
Connect a 4-20mA input signal to the POS FB terminals to monitor
valve position. Connect to the CLOSED and OPEN terminals to
monitor valve position from the two discrete sensors.
Note
Applying an out of range 4-20mA signal (<3.4mA or >21.1mA)
will drive valve to the 0% position and unlock the Wireless Link
control override functionality. Wireless functionality allows remote
monitoring, position control and TEACH capabilities. See page22
for Wireless Link user guide.
WARNING
Do not apply external power to the primary or secondary
solenoid terminals. This will cause permanent damage to the unit.
Calibration
The VDCIN terminals must be connected to a 24VDC power source
and unit connected to supply air.
1. Actuate the valve to the 0% position, red LED will be lit.
2. Press and hold the TEACH button for 2 seconds. The valve will
cycle open and closed one or more times while determining the
valve operating characteristics. The red, green, and yellow LEDs will
ash intermittently during these cycles.
3. Calibration will nish with the valve at the commanded position
and the appropriate LED will be lit.
Caution: Read all instructions prior to performing this
procedure.
WARNING
Valve/actuator will automatically stroke while performing this
procedure. Ensure hands are clear from the trigger assembly.
Specications for Wireless Link
Communication Bluetooth® technology; single mode
(not compatible with Bluetooth® Classic)
Frequency band 2.402-2.480 Ghz
Transmit power 4dBm or ~2.5 milliwatts
Data rate 1 Mbit/second; eective information transmit rate
~10 Kbits/second
Range Up to 100 meters (330 feet) in free space. Range is
reduced by obstructions between handheld device and
Wireless Link VCT. Line of site is not necessary.
Registrations FCC, IC, CE
CE compliance Exceeds industrial compliance standards
VCT identication VCTs in range will be displayed in order of signal
strength
VCT link One device accessed at a time between client (hand-
held device) and server (VCT). Each server accessed by
one client at a time
Application StoneL Wireless Link available from the App store
Hand-helds Compatible with iPhone® and iPad® with iOS 8 or later