Hansen VPIF Operating instructions

Specifications, Applications,
Service Instructions & Parts
VPIF
Valve Position Indicator
Bulletin VPIFa
JUL 2006
Standard Display Monitor
for use with
HMMV, HMMR, HMMVC, HMMRC,
HMXV and HMXVC
VPIF on Sealed Motor Valve
INTRODUCTION
The Valve Position Indicator, model VPIF is a digital
monitoring module added to the standard Sealed
Motor Valve (SMV) product line. The VPIF monitors
the valve position during normal operation and is
used to recalibrate the valve after service work is
performed.
The large LED display allows for viewing of
the valve position (in percent) during normal
operation. The VPIF contains an internal independent
4 mA and 20 mA current source, which is switch
selectable for recalibration at the valve 0% 4
mA (closed) position and 100% 20 mA (full open)
position.
The VPIF can be mounted on or near the valve for ease
of use and visibility of the display. Often, valves are
mounted high in the air or in obstructive areas where
the technician cannot easily reach. The VPIF can be
mounted up to 10 feet (3 meters) in any direction from
the valve. VPIEC Extension Cables are available where
more length is required.
KEY FEATURES
Versatile installation options
Large LED display
Corrosion resistant enclosure, NEMA 4x
Simple SMV recalibration
Local indication of the SMV valve position
Uses same supply voltage as SMV
Allows for easy removal of the VPIF from the control
loop
ADVANTAGES
In the normal operating mode the VPIF passes
the 4 to 20 mA current loop signals and 24V AC
to and from the SMV without signal degradation.
When used for recalibration, the VPIF will output
either 4 mA (fully closed) or 20 mA (fully open). A
waterproof 3-position switch on the outside of
the VPIF enclosure is used for recalibration of
the SMV. The switch in the up position produces
20 mA; the switch in the down position produces a 4
mA signal to the valve. The calibration key must be
attached to the designated location on the side of the
SMV motor in order for the valve to recalibrate. After
recalibration, return the switch to the middle position
(automatic) and remove calibration key.
The VPIF valve position feedback can alert operators
to valves controlled by an unstable control scheme.
This feature is very important to the proper operation
of the refrigeration system and the life of the Sealed
Motor Valve. The VPIF is compact and reliable at
very low temperatures. Waterproof quick disconnect
connectors allow for easy removal of the SMV power
head for service.
APPLICATIONS
The VPIF may be installed on the following Sealed
Motor Valves:
HMMV, HMMR, HMMVC, HMMRC, HMXV and
HMXVC

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JUL 2006
MATERIAL SPECIFICATIONS
Electrical
Display: LED, 0.0 –100.0 %
Normal Mode: Signal pass through
Calibration Mode:
Signal Output: 4 mA or 20 mA to SMV
Power Supply: 24V AC
VPIF Power Consumption: 3.6 VA
Housing: Watertight, NEMA 4X (IP65)
Ambient Temperature: -20ºF to +125ºF (-30ºC to
+50ºC)
Mechanical
Connections: To system controller, 7 wires - marked
every foot 1 thru 6 with the 7th yellow/green (Earth
ground), 18 AWG wire cable with waterproof
connectors, cable length of 10 feet.
INSTALLATION
The VPIF is shipped in a box with the Sealed Motor
Valve and comes factory calibrated and tested; ready
to use. The VPIF can be mounted on the valve or to
any flat surface. The clear cover must be removed
to access the 4 plate bolts. These same 4 holes are
used to mount the VPIF on a flat sur face. Replace the
clear cover when complete.
WIRING INSTALLATION
Proper wiring is very important to the operation of
the Sealed Motor Valve. Correct wire size for 24V
AC power to the power head must be selected for the
distance and number of valves. See 24V AC Power
Wiring Table 1.
The VPIF is provided with waterproof quick disconnect
cables. If the VPIF is mounted on the valve, the 8’
cable and the 2’ cable with pigtails can be connected
together for a total of 10’ to the customer supplied
junction box.
If the VPIF is mounted separately from the valve, the
8’ cable is connected to the SMV power head. The
VPIF can be mounted up to 10’ away from the valve.
For greater distances, additional 8’ VPIEC Extension
Cables can be connected. Refer to Figure D.
Table 1: 24VAC POWER WIRING
24VAC POWER
WIRING
(WIRES NO. 1 AND 2)
(90VA PER VALVE
REQUIRED)
AWG WIRE GAUGE (mm2)
NUMBER OF VALVES POWERED
CABLE LENGTH
ft(m) 1234
50 (15) 18 (1,0) 16 (1,5) 14 (2,5) 12 (4,0)
100 (30) 16 (1,5) 12 (4,0) 10 (6,0) 10 (5,5)
150 (46) 12 (2,5) 10 (6,0) 8 (8,5) 8 (8,5)
200 (61) 12 (4,0) 10 (6,0) 8 (8,5)
300 (91) 10 (6,0) 8 (8,5)
TYPICAL INSTALLATION
Figure A
VPIF
VALVE POSITION INDICATOR
(TO SYSTEM
CONTROL PANEL)
WATERPROOF SWITCH
VPIF
VALVE POSITION INDICATOR
(TO SYSTEM
CONTROL PANEL)
SEALED MOTOR VALVE SEALED MOTOR VALVE
2’ CABLE
2’ CABLE
2’ CABLE
2’ CABLE
8’ CABLE
8’ CABLE
MODEL: VPIF, MOUNTED ON VALVE MODEL: VPIF, MOUNTED EXTERNALLY

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JUL 2006
VPIF INSTALLATION DIMENSIONS, INCH (MM)
Figure B
4.86”
(123)
2.75”
(70)
.90 TYP
5.50”
(140)
3.10”
(78)
#17 (.173 REF) DIA
MOUNTING HOLE (TYP) 2.74”
(69) 4.40”
(111)
2 1/2” (65)
STAINLESS
STEEL PIPE
CLAMP
VPIF FIELD MOUNTED VPIF MOTOR MOUNTED
4.72”
(120)
2.36”
(60)
RE-CALIBRATION INSTRUCTIONS FOR
HMMV, HMMR, HMXV, HMMVC, HMMRC,
AND HMXVC*
Hansen Sealed Motor Valves are factory calibrated, and
hold their calibration during shipment, power outages,
etc. Valve disassembly or manual opening with the
MOVT (Manual Operation Valve Tool) does require
subsequent recalibration, therefore after removing or
replacing the 4-20 mA motor of a Sealed Motor Valve,
recalibrate the valve. Recalibration synchronizes the
control input with the valve position; that means, for
example, a 12 mA input (50%) would result in the valve
moving to the half-open position.
Recalibration requires the ability to control the 4-20
mA control input to the motor between four and twenty
milliamps, and requires the ability to allow the valve
to stroke fully open and closed. For valves shipped
after July 4, 2006, or retrofitted valves with VPIF, the
4 mA and 20 mA signal to calibrate the valve is part of
the function of the VPIF. If the valve is not equipped
with a VPIF, then the 4 mA and 20 mA to calibrate must
come from the computer or separate signal generator.
Only qualified refrigeration service personnel should
perform this procedure, and proper precautions taken
to prevent a hazardous or undesirable occurrence
resulting from operating the valve from open and
closed.
1. Secure the refrigeration system to allow the
valve to open and close fully without causing
undesirable system problems to occur.
2. Mount and secure the motor on the sealed motor
valve. Connect electrical wiring in accordance
to the valve and controller manufacturers
specifications.
3. Install “Calibration Key” over ‘X’ on side of motor
and secure with strap.
4. Increase the control input to 20 mA or slightly
greater. Move VPIF switch to up position.
Maintain at least 20 mA for at least two minutes.
This will give the valve time to move to the wide
open position and calibrate its position. Note:
some computer control systems have lag times
before the control input is sent to the valve.
(Using “System Feedback Mode”).
5. Decrease the control input to 4 mA or less. Move
VPIF switch to down position. Maintain 4 mA or
less for at least two minutes. This will give the
valve time to move to the completely closed
position and calibrate its zero point.
6. Again increase the control input to at least 20
mA. Move VPIF switch to up position. Maintain
at least 20 mA for at least two minutes. This
will give the valve time to move to the wide open
position and set its span.
7. The valve should now be calibrated and in the
wide open position.
8. Remove “Calibration Key” and store. The valve
will operate satisfactorily if the “Calibration Key”
remains over the “X”, but the valve will recalibrate
each time the control input is at 4 mA or 20 mA
for more than the two minutes.
9. Return control system to automatic operation.
Place VPIF switch in middle position.

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JUL 2006
THE 3 MODES OF OPERATION
There are 3 feedback options for the feedback circuit.
To change the setting, the VPIF must be opened and
manually set to the proper system requirements.
Improper settings can result in damage to the system
controller and/or VPIF.
The VPIF is shipped from the factory with the jumper
in the “Independent Feedback Mode”.
1) Independent Feedback Mode – use when the
local recalibration of valve position is made with
the 24V DC control loop disconnected from the
system PLC controller or main computer. An
isolated 4-20 mA power supply in the VPIF is
used to power the feedback loop at the SMV.
This allows for the valve percent open position
to display on the VPIF LED display only during
calibration. This mode can verify feedback output
is correct when the computer feedback loop is
disconnected. Jumper locations 2 and 3.
2) Local Feedback Mode – use when the valve
position feedback loop is not used by the system
computer or PLC. A 4-20 mA power supply internal
to the VPIF is used to power the feedback loop to
the SMV. This allows for the valve percent open
position to display on the VPIF LED display in
both the automatic and recalibration operation.
Jumper locations 1 and 2.
3) System Feedback Mode – use when the 24V DC
feedback loop is loop powered from the system
computer or PLC. The 4-20 mA feedback loop is
always connected to the system controller or PLC.
The VPIF internal isolated 4-20mA loop supply
is not used. The valve percent open position is
displayed on the VPIF LED display and also at
the computer display or PLC during automatic
operation and during VPIF recalibration. Jumper
removed. Place on one post for future use.
PROCEDURE FOR CHANGING THE
FEEDBACK MODE OF OPERATION
Tools required: 2mm hex key, Phillips head screwdriver
and needle nose pliers.
To change the feedback mode, move the
2-position jumper to the appropriate setting. Take
care not to touch the electronic components as static
electricity may damage the electronic circuits.
1. Remove power and control signal lines from the
VPIF by removing the external connector label
“TO CONTROLLER”.
2. Remove the clear cover from the VPIF.
3. Remove the black acrylic plastic plate by removing
the 4 button head hex keyed screws. Use a 2 mm
hex key.
4. Rotate the bottom of the plastic plate to the left.
Only lift the plate enough to clear the side of the
housing. Refer to Figure C.
5. Use needle nose pliers to make the required
changes.
6. Assemble unit in reverse order.
INDEPENDENT FEEDBACK MODE: JUMPER ON PINS 2-3 (STANDARD)
LOCAL FEEDBACK MODE: JUMPER ON PIN 1-2
SYSTEM FEEDBACK MODE: NO JUMPER CONNECTION. PLACE JUMPER
ON ONE POST FOR FUTURE USE.
Figure C
WATERPROOF
SWITCH
JUMPER
VPIF

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JUL 2006
MODEL: VPIF WIRING
Figure D
VPIF
VALVE POSITION
INDICATOR
MALE
CONNECTOR
FEMALE
CONNECTOR
HANSEN SEALED MOTOR VALVE
HMMV, HMMR, HMMVC, HMMRC,
HMXV, HMXVC
CUSTOMER SUPPLIED
LINE VOLTAGE
TRANSFORMER
24VAC
90VA MIN
PER VALVE
DC POWER
SUPPLY
24VDC
50 mA MIN
PER VALVE
COMPUTER
OR
CONTROLLER
YELLOW/GREEN STRIPE (GROUND)
24VAC (POWER)
24VAC (POWER)
– 4-20mA INPUT (CONTROL SIGNAL)
+ 4-20mA INPUT (CONTROL SIGNAL)
– 4-20mA OUPUT (VALVE POSITION FB)
+ 4-20mA OUTPUT (VALVE POSITION FB)
CUSTOMER SUPPLIED
JUNCTION BOX
SEE TABLE 1
7
1
2
3
4
5
6
2’ CABLE
8’ CABLE
2’ CABLE
24VAC
24VAC

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JUL 2006
RETRO-FIT KITS FOR EXISTING SEALED
MOTOR VALVE INSTALLATIONS
Retro-fit Kits are available to add the VPIF to existing
Sealed Motor Valve installations. Kit number 75-1210
includes the VPIF, cables and junction box with wire
nuts. The VPIF is simply spliced into the existing
wiring. All wires are numbered each foot to aid in
correct wire connections.
For those who want a quick disconnect connector
on the Sealed Motor Valve power head, Kit
number 75-1211 includes a field solder male cable
connector. See Figure E for the correct terminal.
VPIF FIELD SOLDERED CABLE CONNECTORS
(For 75-1211 VPIF Retro-fit Kit)
Figure E
MALE
(BACK SIDE)
YELLOW/GREEN
STRIP LENGTH:
A= .150”
B= .400”
1) EACH WIRE HAS A NUMBER IDENTIFIER (1-6). GROUND (YELLOW/GREEN) TO #7 PIN.
2) MATCH UP EACH WIRE TO ITS CORRESPONDING CONNECTOR POSITION AND SOLDER.

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JUL 2006
TROUBLESHOOTING GUIDE FOR VPIF
Problem/Complaint Check/Solution
Valve stuck
– Wire size/gauge to small
– Supply power not adequate
– Cable connectors wired incorrectly
– Check signal polarity - #3 and #4, #5 and #6 wires
– Excessive dirt in valve
No Valve Position Feedback
– Check 24V DC power supply
– Check signal polarity - #3 and #4, #5 and #6 wires
– Cable connectors wired incorrectly
– Check VPIF calibration switch in the NORMAL position
– VPIF in the Local Feedback Mode
No visual data on LED Display – Check 24V AC supply power is good (+/-5%)
– Cable connectors wired correctly
Valve % open span is very limited – Recalibrate SMV
VPIF indicates % open greater than 100.0% – Recalibrate SMV
– +/- 3% is within tolerance
VPIF indicates % open less than 0.0% – Recalibrate SMV
– +/- 3% is within tolerance
VPIF LED Display value is greater than or
less than what is indicated by the system
controller or PLC
– If reading between the 2 devices are within +/- 3%, this is
normal
System computer or PLC displays open for
SMV valve position feedback
– VPIF configured in wrong feedback mode
– Cable connectors wired incorrectly
– Check signal polarity - #3 and #4, #5 and #6 wires
VPIF % open 10ths position is not stable – +/- 3% is within tolerance
VPIF % open is not stable
– Check wiring is sufficient size for the distance from 24V AC
power supply and number of valves connected to the 24V AC
power supply
– Check 24V AC power source
– System controller or PLC operation is erratic
– RFI/EMI interference

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JUL 2006
Hansen Technologies Corporation
6827 High Grove Boulevard
Burr Ridge, Illinois 60527 USA
Tel: 630.325.1565 Fax: 630.325.1572 Toll: 800.426.7368
USA ∙Asia ∙Europe ∙India ∙Latin America ∙Middle East
© 2006 Hansen Technologies Corporation
CAUTION
The VPIF is designed for use with the SMV only. Read
these instructions and related safety precautions
before selecting, using, or servicing these devices.
WARRANTY
Hansen electrical and electronic parts are guaranteed
against defective materials and workmanship for
90 days F.O.B. our plant. All other components
are guaranteed for one year F.O.B. our plant. No
consequential damages or field labor is included.
WARNING
As with all electronics and mechanical components,
there is a limited life expectancy. An expected life of
seven to ten years is typical. This should be understood
as only a suggested replacement time period. Actual
ambient conditions, contaminants, quality of electric
current, voltage, etc., may necessitate a different
replacement schedule. Regardless, the VPIF should
be inspected at least annually to ensure their safe and
continuous service. See also Safety Precautions in the
current List Price Bulletin and the Safety Precautions
Sheet supplied with the product.
ORDERING INFORMATION
VPIF VALVE POSITION INDICATOR
CATALOG
NUMBER DESCRIPTION
VPIF
Valve Position Indicator (VPIF)
Monitor for SMV Models with 4-20mA
(less cables & bracket)
VPIEC 8’ Extension Cable
75-1210 VPIF Retro-fit Kit includes VPIF, 2
cables and junction box
75-1211
VPIF Retro-fit Kit includes VPIF, cable
and solder quick disconnect cable
connector
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