SMC Networks PF2A7H Operation Manuals

Digital Flow Switch
Summary of Product parts
Operation Manual
Body
Monitor part
PF A7 H
Piping port
Thank you for purchasing an SMC PF2A7 H Series Digital Flow Switch.
(IN side)
Please read this manual carefully before operating the product and make sure you
understand its capabilities and limitations.
Body
Please keep this manual handy for future reference.
To obtain more detailed information about operating this product, please
refer to the SMC website (URL http://www.smcworld.com) or contact SMC
directly.
Item
Monitor part
Safety Instructions
Piping port
Body
Connector
These safety instructions are intended to prevent hazardous situations and/or
Lead wire and connector
equipment damage.
These instructions indicate the level of potential hazard with the labels of
Monitor part
"Caution", "Warning" or "Danger". They are all important notes for safety and must
be followed in addition to International standards (ISO/IEC) and other safety
Indicator LED (reference condition)
regulations.
CAUTION indicates a hazard with a low level of risk Indicator LED (output)
Caution:
which, if not avoided, could result in minor or
moderate injury. button (UP)
button (SET)
WARNING indicates a hazard with a medium level of
Warning:
risk which, if not avoided, could result in death or
Item
serious injury.
LCD display
DANGER indicates a hazard with a high level of risk
Indicator LED (reference condition)
Danger:
which, if not avoided, will result in death or serious
injury.
Indicator LED (output)
Operator
Indicator LED (flow rate)
Unit display
This operation manual is intended for those who have knowledge of machinery
button (UP)
using pneumatic equipment, and have sufficient knowledge of assembly,
operation and maintenance of such equipment. Only those persons are button (SET)
allowed to perform assembly, operation and maintenance.
button (MODE)
Read and understand this operation manual carefully before assembling,
button (DOWN)
operating or providing maintenance to the product.
Safety Instructions
Mounting and Installation
Warning
Installation
Do not disassemble, modify (including changing the printed circuit board) or repair.
An injury or failure can result.
•Never mount the product in a location that will be used as a foothold.
•The rotation angle of the monitor is 270
Do not operate the product outside of the specifications.
Do not use for flammable or harmful fluids. part with excessive force will damage the end stop.
Fire, malfunction, or damage to the product can result.
Verify the specifications before use.
Do not operate in an atmosphere containing flammable, explosive or corrosive gas.
Fire or an explosion can result.
This product is not designed to be explosion proof.
Do not use the product for flammable fluid.
A fire or explosion can result.
Do not use the product in a place where static electricity is a problem.
Otherwise it can cause failure or malfunction of the system.
If using the product in an interlocking circuit:
•Provide a double interlocking system, for example a mechanical system
•Check the product regularly for proper operation
Otherwise malfunction can result, causing an accident.
The following instructions must be followed during maintenance:
•Turn off the power supply
•Stop the air supply, exhaust the residual pressure and verify that the air is released before performing
maintenance work
Otherwise an injury can result.
Caution
Do not touch the terminals and connectors while the power is on.
Otherwise electric shock, malfunction or damage to the product can result.
After maintenance is complete, perform appropriate functional inspections and leak tests.
Stop operation if the equipment does not function properly or there is a leakage of fluid.
When leakage occurs from parts other than the piping, the product might be faulty.
Disconnect the power supply and stop the fluid supply.
Do not apply fluid under leaking conditions.
Safety cannot be assured in the case of unexpected malfunction.
Maintenance
How to reset the product after a power cut or forcible de-energizing
The setting of the product will be retained as it was before a power cut or
de-energizing.
The output condition is also basically recovered to that before a power cut or
de-energizing, but may change depending on the operating environment.
Therefore, check the safety of the whole installation before operating the product.
Piping
•Use the product within the specified operating pressure range and temperature
range.
•Proof pressure is 2.25 MPa.
Connector pin numbers
•Connect the piping to the fittings.
Connector
(On the product)
•Mount the product so that the fluid direction is the same as the arrow indicated
4
Lead wire and connector on the product.
•Never mount the product upside down.
•The piping on the IN side must have a straight section of piping whose length
1 3
is 8 times the piping diameter or more.
•Avoid sudden changes in the piping size on the IN side of the product.
2
Piping port
(OUT side)
1 DC(+)
2 Analogue output
Port size D
3 DC(-)
4 OUT1
D x 8 times
Description
See below.
Connecting the piping
Connected to the fluid inlet at IN side and to the fluid outlet at OUT side.
The body of the product. •Ensure that the metal piping attachments are tightened to the required torque
(refer to the table below).
Connector for electrical connections.
•If the tightening torque is exceeded, the product can be broken. If the
Lead wire to supply power and transmit output signals.
tightening torque is insufficient, the fittings may become loose.
•When connecting piping to the product, a spanner should be used on the
LCD display
metal piping attachment only. Using a spanner on other parts may damage
FLOW SWITCH
the product.
Indicator LED (flow rate)
•Avoid any sealing tape from entering inside the piping.
ANR ft x10 ft L/min L •Ensure that there is no leakage from loose piping.
3 6 3 Unit display
OUT ft 3 x10 3 CFM m 3 m x10 3 3
button (DOWN)
U P SET MODE DOWN
button (MODE)
Metal piping attachment
Description
Displays the flow value, setting mode, and error indication.
Indicates the reference condition selected. LED is ON (Red) when standard
condition is selected.
Indicates the output status of OUT1. LED is ON (Red) when OUT1 is ON.
The LED flashes when an over current error occurs.
Flashes with the cycle proportional to the flow rate.
Display the selected unit.
Selects the mode or increases the ON/OFF Set value.
Press this button to change to another mode and to set a value.
Moves on to the function selection mode.
Selects the mode or decreases the ON/OFF Set value.
Wiring
•Connections should only be made with the power supply turned off.
•Use separate routes for the product wiring and any power or high voltage
wiring. Otherwise, malfunction may result due to noise.
•Ensure that the FG terminal is connected to ground when using a commercially
o , in steps of 90 o . Rotating the display
available switch-mode power supply. When a switch-mode power supply is
connected to the product, switching noise will be superimposed and the
product specification can no longer be met. This can be prevented by inserting
a noise filter, such as a line noise filter and ferrite core, between the switch-
180°
mode power supply and the product, or by using a series power supply instead
IN side OUT side of a switch-mode power supply.
Connecting the wiring
•Align the lead wire connector with the connector key groove, and insert
270° 90° vertically.
•Connection is complete when the knurled part is fully tightened. Check that
the connection is not loose.
End stop
position
0°
End stop
position
Connector Pin numbers
When the lead wire with connector designated for the PF2A7 is used, the wire
colours will apply as shown in the diagram.
1 2
4 3
Pin number Content
1 DC(+)
2 Analogue output
3 DC(-)
4 OUT1
Outline of setting
Power is supplied
The output will not operate for 3 seconds after supplying power.
The identification code of the product is displayed.
IN side OUT side
Measurement mode
Flow direction
The mode in which the flow is detected and displayed, and the switch output
is operating.
FLOW SWITCH
This is the basic operating mode; and other modes should be selected for
setting changes and other function settings.
Restrictor
Accumulated flow can be displayed up to 9999999999 L (999999999.9 ft
The LCD display displays up to 5 digits at one time. The display is divided
into three parts (upper digits, middle digits and lower digits).
Maximum flow
Display unit
display value Upper digits
L display
9999999999 L
[ U_1]
9999 m 3 ×10 3
(9999 L)
ft display
999999999.9 ft 3
[ U_2]
999 ft 3 ×10 6
(999 . ft
: Operate only the product with unit selection function.
Nominal
Tightening torque
thread size
button
Rc(NPT)1 36 to 38 Nm
Rc(NPT)1 1 /
2
48 to 50 Nm
Rc(NPT)2
Function selection mode
Width across flats
Model
of attachment
PF2A703H 55 mm
PF2A706H 65 mm
PF2A712H 75 mm
List of outputs
Find the diagram of the output required in the table below. Perform settings
following the Set value column on the right.
Switch output diagram Output mode
Hysteresis
ON
OFF
P_2 P_1 Instantaneous flow
Hysteresis ∗1 Hysteresis ∗1
ON
OFF
Instantaneous
P_1 P_2 Instantaneous flow output mode
Hysteresis
ON
OFF
n_2 n_1 Instantaneous flow
Hysteresis ∗1 Hysteresis ∗1
ON
OFF
n_1 n_2 Instantaneous flow
Accumlated flow
Knurled part
P_3
Time
ON
OFF
Accumulated
Time output mode
Accumlated flow
n_3
Time
ON
OFF
Time
ON
50 ms
OFF
Colour
Accumulated
Time
Brown pulse output
mode
White
ON
Blue
50 ms
OFF
Black
Time
1: Hysteresis can be set between "0" and "3% of maximum rated flow". If the difference between Set point 1 and
Set point 2 is less than "6% of maximum rated flow", the maximum Set value of hysteresis is (Set point 1 -
Set point 2) divided by 2.
2: When Set point 1 = Set point 2, chattering may occur.
Setting flow chart
Display
accumulated flow rate is changed. L → m
Measurement mode
(Instantaneous flow)
∗: Start the setting here to supply power under the default settings.
Function selection mode
+ 3 sec. or longer
Reset to the default setting
Initialize mode
Items below can be set one by one.
1.Display mode 2.Unit selection function ∗1
3.Output mode 4.Input of Set point
/
5.Switch operation 6.Key-lock function
3
).
Display mode
Display Display
/
Display digit
instantaneous flow accumulated flow
Middle digits Lower digits
Unit selection function ∗1
99999 m 3 99999 L
(99999 L)
/
L/min, L CFM, ft
3
99999 ft 3 ×10 3 9999.9 ft 3
3 ) (99999 . ft 3 ) Output mode
/ Instantaneous Accumulated
output mode output mode
Other functions
Switch operation
/
Reverse output Non-Reverse output
Key-lock function
/
Unlock Lock
Switch operation Set value
Input of the Set point
Set point 2 Set point 1
Instantaneous output mode Accumulated output mode
Input of the Set point 1 Set value (lower digits)
Non-Reverse
Hysteresis mode 2
output
or or
Set value
∗3
Set point 1 Set point 2
∗4
Window comparator mode
Input of the Set point 2 Set value (middle digits)
Set point 2 Set point 1
/ or Set value or
∗3
∗4
Reverse output
Hysteresis mode 2
Set point 1 Set point 2
Input of hysteresis ∗5 Set value (upper digits)
Set value
Window comparator mode
or
∗4
Upper digits
Non-Reverse
output
Middle digits
Reference condition
Lower digits
ANR ft x10 3 6 ft 3 L/min L m ANR ft
OUT ft x10 3 3 CFM m 3 3 m x10 3 3 OUT ft
/
Standard condition Normal condition
Upper digits
Accumulated value hold
Reverse output
Middle digits
Not held Held
Lower digits
Non-Reverse
output
No Set value input
Measurement mode
(Accumulated flow)
∗: Accumulation starts as the power supply starts.
Reverse output
Press and 6 sec. or longer
No Set value input
Accumulated value is reset Display
instantaneous flow
∗1: Operate only the product with unit selction function (Model indication: without M).
∗2: A set of value is not input, when accumulate pulse output mode.
∗3: Depend on the setting of switch operation in initialize mode.
∗4: Displayed in turn.
∗5: Setting is available when Set point 1 < Set point 2.
The display digit of the accumulate flow Function selection mode
→ L ...
3 → m 3 ×10 3
Press and
In measurement mode, press the button , to display [F_0].
This [F_ ] indicates the mode for changing each functional setting.
Default settings
The default settings are as follows.
If this condition is acceptable, then keep these settings.
Item Default Setting
Selection of display mode [ d_1] Display instantaneous flow
Unit selection function 1
[ U_1] L/min
Selection of output mode [oU1_0] Instantaneous output mode
Input of Set point 1 50% of max. rated flow
[F_0]
Input of Set point 2 50% of max. rated flow
Input of hysteresis 2 [ 0]
Selection of switch operation [oU1_n] Reverse output
Key-lock function [ UnL] Unlocked
[F_1] Selection of display mode [ d_1] Display instantaneous flow
[F_2] Unit selection function 1 [ U_1] L/min
Selection of output mode [oU1_0] Instantaneous output mode
Input of Set point 1 50% of max. rated flow
[F_3]
Input of Set point 2 50% of max. rated flow
Input of hysteresis 2 [ 0]
[F_4] Selection of switch operation [oU1_n] Reverse output
[F_5] Key-lock function [ UnL] Unlocked
Input of Set point 1 50% of max. rated flow
[F_6] Input of Set point 2 50% of max. rated flow
Input of hysteresis 2 [ 0]
[F_7] Selection of reference condition [ Anr] Standard condition
[F_8] Accumulated value hold [ oFF] Not held
1: Operate only the product with unit selection function.
Accumulated pulse
2: Setting is available when Set point 1 Set point 2.
output mode
Not displayed when Set point 1 Set point 2.
Other functions
Reset of the accumulated flow
Reset to the default setting
To set each of these functions, refer to the SMC website
(URL http://www.smcworld.com) for more information about other functions in
detail.
Troubleshooting
∗2
Error indication
Error Name Display Type Troubleshooting
Set value
Excessive
∗3 L
Flow has exceeded the upper
instantaneous Reduce the flow.
∗4
limit of the display flow range.
flow
The switch output load Turn the power off and remove
Over current
current is more than 80 mA the cause of the over current.
error
(OUT1). Then turn the power on again.
To reset, press the
Set value
The set data has been 6 seconds or longer while the
∗3 m
3
changed unexpectedly. button is pressed. Then set all
∗4
data again.
System error
The internal circuit could be Stop using and please contact
damaged. SMC.
Set value
∗3
m 3 ×10 3
∗4
3 sec. or longer
ANR ft 3 x10 6 ft 3 L/min L
OUT ft 3 x10 3 CFM m 3 m x10 3 3
/
(When [ U_1] is selected)
To reset the accumulated flow
Excessive
Exceeds the range of the value, press the
x10 3 6 ft 3 L/min L m
x10 3 3 CFM m 3 3 m 3 x10 3 accumulated
2nd. turn of flow indication. 6 seconds or longer while the
flow
button is pressed.
ANR ft 3 x10 6 ft 3 L/min L
OUT ft 3 x10 3 CFM m 3 m x10 3 3
/
(When [ U_2] is selected)
Accumulated flow displayed
(flashing)
: If the error cannot be reset after the above measures are taken, then please contact SMC.
Refer to the SMC website (URL http://www.smcworld.com) for more information
about troubleshooting.
Specifications / Outline with Dimensions
Refer to the product catalogue or SMC website (URL http://www.smcworld.com) for
The display digit of the more information about the product specifications and outline dimensions.
accumulate flow rate is set.
Unit flashes.
→ L ...
L → m 3 → m 3 ×10 3
URL http://www.smcworld.com
Akihabara UDX 15F, 4-14-1, Sotokanda, Chiyoda-ku, Tokyo 101-0021, JAPAN
Phone: +81 3-5207-8249 Fax: +81 3-5298-5362
Note: Specifications are subject to change without prior notice and any obligation on the part of the manufacturer.
© 2011 SMC Corporation All Rights Reserved
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