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Summary of Contents for SMC Networks PFMC7501
- Page 1 No.PF※※-OMS0002-B PRODUCT NAME Digital Flow Switch MODEL / Series / Product Number PFMC7501 PFMC7102 PFMC7202...
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Page 2: Table Of Contents
Contents Safety Instructions Model Indication and How to Order Summary of Product parts Definition and terminology Mounting and Installation Installation Piping Wiring Outline of Settings [Measurement mode] Flow Setting (set value only) of OUT1 OUT2 [3 step setting mode] Default settings Function Setting [Function selection mode] Default settings... -
Page 3: Safety Instructions
Safety Instructions These safety instructions are intended to prevent hazardous situations and/or equipment damage. These instructions indicate the level of potential hazard with the labels of "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 regulations. - Page 4 Safety Instructions Caution 1.The product is provided for use in manufacturing industries. The product herein described is basically provided for peaceful use in manufacturing industries. If considering using the product in other industries, consult SMC beforehand and exchange specifications or a contract if necessary. If anything is unclear, contact your nearest sales branch.
- Page 5 Operator This operation manual is intended for those who have knowledge of machinery using pneumatic equipment, and have sufficient knowledge of assembly, operation and maintenance of such equipment. Only those persons are allowed to perform assembly, operation and maintenance. Read and understand this operation manual carefully before assembling, operating or providing maintenance to the product.
- Page 6 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.
- Page 7 ●Product handling Installation Tighten to the specified tightening torque. If the tightening torque is exceeded the mounting screws, the product may damaged. If the tightening torque is insufficient, the product may be displaced and the mounting screws may come loose. Ensure that the FG terminal is connected to ground when using a commercially available switch-mode power supply.
- Page 8 Wiring Do not pull the lead wires. In particular, never lift a product equipped with fitting and piping by holding the lead wires. Otherwise damage to the internal parts can result, causing malfunction or disconnection of the connector. Avoid repeatedly bending or stretching the lead wire, or placing heavy loads on it. Repeated bending stress or tensile stress can cause damage to the sheath, or breakage of the wires.
- Page 9 Environment Do not use the product in an environment that is constantly exposed to the splash of water. Otherwise failure or malfunction can result. Take measures such as using a cover. Do not use the product in an environment where corrosive gases or fluids could be splashed. Otherwise damage to the product and malfunction can result.
- Page 10 Adjustment and Operation Connect load before turning on the power. Do not short-circuit the load. Although an error is displayed when the product load is short circuited, excess current may cause damage to the product. Do not press the setting buttons with a sharp pointed object. This may damage the setting buttons.
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Page 11: Model Indication And How To Order
If an accessory is required, order using the following part number. Part number Description Note ZS-40-A Lead wire with M8 connector Length: 3 m ZS-42-A Bracket With mounting screws for PFMC7501/7102 (M3 x 5, 2 pcs.) ZS-42-B Bracket With mounting screws for PFMC7202 (M3 x 5, 2 pcs.) -10- No.PF※※-OMS0002-B... -
Page 12: Summary Of Product Parts
Summary of Product parts Body Connector pin numbers (on the product) DC(+) OUT2/ Analogue output/ External input DC(-) OUT1 Name Description Display See below. Connector M8 connector for electrical connections. Lead wire with M8 connector Lead wire for power supply and outputs. Piping port For piping connections. -
Page 13: Definition And Terminology
■Definition and terminology Terminology Definition The total amount of fluid that has passed through the device. If an instantaneous Accumulated flow flow of 10 L/min continues for 5 minutes, the accumulated flow will be 5 x 10 = 50 L. Accumulated flow external A function to reset the accumulated flow to "0"... - Page 14 Terminology Definition The resolution of set and display values. Minimum setting unit If the minimum setting unit is 1 L/min, the flow can be displayed in 1 L/min units, i.e. 10, 11, 12. Reference condition for volumetric flow: 101.3 kPa, 0 °C The flow measurement Normal condition (NOR) which is converted at normal atmospheric pressure conditions at 0 C.
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Page 15: Mounting And Installation
Mounting and Installation Mounting Never mount the product in a place where it will be used as a mechanical support. Mount the product so that the fluid flows in the direction indicated by the arrow on the side of the body. The monitor with integrated display can be rotated. -
Page 16: Installation
■Installation Bracket mounting Mount the bracket to the product using the mounting screws (2 pcs.). Fasten the bracket mounting screws to a torque of 0.5 to 0.7 Nm. Mount the product with bracket using M4 screws (4 pcs.) or equivalent. Screw is prepared by customer. - Page 17 Direct mounting For direct mounting use M3 screws (2 pcs.) or equivalent. Screws are prepared by customer. Refer to the dimension drawing (page 71) for the diameter and depth of the mounting screw holes. Tightening torque is 0.5 to 0.7 Nm. -16- No.PF※※-OMS0002-B...
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Page 18: Piping
■Piping Never mount the product upside down. The straight piping length shall be 8 cm or longer. Otherwise, if a straight section of piping is not installed, the accuracy varies by approximately 2%F.S. Refer to the straight inlet piping length and accuracy graph (page 70). Avoid sudden changes in the piping size on the IN side of the product. -
Page 19: Wiring
■Wiring Connection Connections should only be made with the power supply turned off. Use a separate route 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 available switch-mode power supply. - Page 20 Internal circuit and wiring examples NPN (2 outputs) type PFMC7 -A - Maximum applied voltage: 28 V Maximum load current: 80 mA Internal voltage drop: 1 V or less NPN (1 output) + Analogue (1 to 5 V) output type PFMC7 -C - NPN (1 output) + Analogue (4 to 20 mA) output type...
- Page 21 PNP (2 outputs) type PFMC7 -B - Maximum load current: 80 mA Internal voltage drop: 1.5 V or less PNP (1 output) + Analogue (1 to 5 V) output type PFMC7 -E - PNP (1 output) + Analogue (4 to 20 mA) output type PFMC7 -F - Maximum load current: 80 mA...
- Page 22 Example of wiring for accumulated pulse output NPN (2 outputs) type PFMC7 -A - NPN (1 output) + Analogue output type PFMC7 -C - PFMC7 -D - NPN (1 output) + External input type PFMC7 -G - PNP (2 outputs) type PFMC7 -B - PNP (1 output) + Analogue output type...
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Page 23: Outline Of Settings [Measurement Mode]
Outline of Settings [Measurement mode] Power is supplied The output will not operate for 3 seconds after supplying power. The identification code of the product is displayed. [Measurement mode] Measurement mode is the condition where the flow is detected and displayed, and the switch function is operating. -
Page 24: Flow Setting (Set Value Only) Of Out1 · Out2 [3 Step Setting Mode]
When the flow exceeds the set value [P_1], the switch will be turned ON. When the flow falls below the set value by the amount of hysteresis [H_1] or more, the switch will turn OFF. If the operation shown in the diagram below is acceptable, then keep these settings. ●PFMC7501 Item Default settings... - Page 25 <Operation> 1. Press the button once in measurement mode. [P_1] or [n_1] and [the current set value] are displayed in turn. 2. Press the button to change the set value. button is to increase and the button is to decrease the set value. Press the button continuously to keep increasing the set value.
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Page 26: Function Setting [Function Selection Mode]
Function Setting [Function selection mode] Function selection mode In this mode, each function setting can be changed separately. In measurement mode, press the button for 2 seconds or longer, to display [F 0]. Press the button to select the function to be changed. Press the button for 2 seconds or longer in function selection mode to return to measurement mode. -
Page 27: Default Settings
L] L/min [ oU1] Output mode of OUT1 HYS] Hysteresis mode [ 1ot] Switch operation of OUT1 1_P] Normal output 250] 250 L/min (PFMC7501) [ P_1] Set value of OUT1 500] 500 L/min (PFMC7102) [F 1] 1000] 1000 L/min (PFMC7202) -
Page 28: F0 Reference Condition/Unit Selection Function
■ [F 0] Reference condition/Unit selection function Reference condition Standard condition or normal condition can be selected. Standard condition (ANR) and normal condition (NOR) are defined as follows: Standard condition (ANR): 101.3 kPa, 20 °C, 65% RH Normal condition (NOR): 101.3 kPa, 0 °C Unit selection function ... - Page 29 Flow specification when [CF] is selected during the unit selection function. Model PFMC7501 PFMC7102 PFMC7202 Rated flow range 0.2 to 17.7 cfm 0.4 to 35.3 cfm 0.8 to 70.6 cfm Instantaneous 0.2 to 18.6 cfm 0.4 to 37.1 cfm 0.8 to 74.2 cfm...
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Page 30: F1 Setting Of Out1
■ [F 1] Setting of OUT1 Set the output mode of OUT1. ●Switch output operation list Select the operation required from the table below. Characters in ( ) are for OUT2. Normal output Reversed output Hysteresis mode Window comparator mode Accumulated output mode (Increment) - Page 31 ●Setting flowchart Refer to the list of Switch output operation list for the setting procedure. Characters in ( ) are for OUT2. Mark the procedure path with a pen or marker. : OUT2 cannot be set. Enter the items that you selected, following the procedure below. -30- No.PF※※-OMS0002-B...
- Page 32 Follow the Setting flowchart. <Operation>: Setting of OUT1 Press the button in function selection mode to display [F 1] on the main display. [oUt1] and [the current set value (output mode)] are displayed in turn on the sub display. Press the button.
- Page 33 a. When hysteresis mode is selected Set value [P_1] or [n_1] is displayed on the main display. [The current set value] flashes on the sub display. Press the button to change the value. Press the button to set. Hysteresis [H_1] is displayed on the main display. [The current set value] flashes on the sub display.
- Page 34 b. When window comparator mode is selected Set value (Lower limit value) [P1L] or [n1L] is displayed on the main display. [The current set value] flashes on the sub display. Press the button to change the value. Press the button to set. Set value (Upper limit value) [P1H] or [n1H] is displayed on the main display.
- Page 35 c. When accumulated output mode is selected Accumulated output increment (addition) or decrement (subtraction) [AC1] is displayed on the main display. [The current set value] flashes on the sub display. Press the button to select. Press the button to set. The accumulated output can be set between 0 and 999999999 L.
- Page 36 Set value (lower 6 digits) When accumulated increment is selected [P1AL] or [n1AL] is displayed on the main display. When accumulated decrement is selected [P1dL] or [n1dL] is displayed on the main display. [The current set value] flashes on the sub display. Press the button to change the value.
- Page 37 d. When accumulated pulse output mode is selected Display colour The display colour (main display) can be set to change depending upon the status of OUT1. [CoL] is displayed on the main display. [The current set value] flashes on the sub display. Press the button to select.
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Page 38: F2 Setting Of Out2
■ [F 2] Setting of OUT2 Set the output mode of OUT2. Refer to the list of switch output modes (page 29) and the flow setting chart (page 30). : When using a model without OUT2 (switch output), this setting is not available and [---] will be displayed. <Operation>: Setting of OUT2 Press the button in function selection mode to display [F 2] on the main display. - Page 39 a. When hysteresis mode is selected Set value [P_2] or [n_2] is displayed on the main display. [The current set value] flashes on the sub display. Press the button to change the value. Press the button to set. Hysteresis [H_2] is displayed on the main display. [The current set value] flashes on the sub display.
- Page 40 b. When window comparator mode is selected Set value (Lower limit value) [P2L] or [n2L] is displayed on the main display. [The current set value] flashes on the sub display. Press the button to change the value. Press the button to set. Set value (Upper limit value) [P2H] or [n2H] is displayed on the main display.
- Page 41 c. When accumulated output mode is selected The accumulated output can be set between 0 and 999999999 L. The set value is input starting from the upper 3 digits. Selection of accumulated output increment (addition) and decrement (subtraction) relies on the setting of OUT1, so it is not available for OUT2.
- Page 42 d. When accumulated pulse output mode is selected The display colour cannot be set. Press the button to set. [F 2] Setting of OUT2 completed. Return to function selection mode. : The display colour is defined by OUT1 and cannot be changed with any OUT2 settings. : When the accumulated pulse output mode is selected, the output operation indicator LED will turn off.
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Page 43: F3 Response Time
■[F 3] Response time The response time of the switch output and analogue output can be selected. Output chattering can be prevented by setting the response time. <Operation > Press the button in function selection mode to display [F 3] on the main display. [RES] and [the current set value] are displayed in turn on the sub display. -
Page 44: F10 Sub Display
■[F10] Sub display The sub display indication during measurement mode can be selected from the following: Set value display: Displays the set value of OUT1 (The set value of OUT2 cannot be displayed.). Accumulated flow display: Displays the accumulated flow of OUT1 (The accumulated flow of OUT2 cannot be displayed). - Page 45 <Example of sub display during measurement mode> -44- No.PF※※-OMS0002-B...
- Page 46 <Example of sub display during measurement mode (continued)> -45- No.PF※※-OMS0002-B...
- Page 47 <Example of sub display during measurement mode (continued)> The maximum (peak) and minimum (bottom) flow from when the power is supplied to this moment is detected and updated. Press the buttons for 1 second reset the peak and bottom values. If the external input is available, the values can also be reset by external input.
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Page 48: F20 External Input
■[F20] External input This function is available when the model includes the external input function. The accumulated flow, peak value and bottom value can be reset remotely. : When using a model without external input function, this setting is not available and [---] will be displayed. Accumulated flow external reset: A function to reset the accumulated flow value when an external input signal is applied. -
Page 49: F22 Setting Of Analogue Output
■[F22] Setting of analogue output This function is available when the model includes the analogue output. The flow value corresponding to an analogue output voltage = 5 V or analogue output current = 20 mA can be selected. : When using a model without analogue outputs, this setting is not available and [---] will be displayed. <Operation>... -
Page 50: F30 Accumulated Value Hold
■[F30] Accumulated value hold This function enables the accumulated flow value to be stored in permanent memory every 2 or 5 minutes. In the default setting, the accumulated flow value is not held when the power supply is turned off. : When using the accumulated value hold function, calculate the product life from the operating conditions, and use the product within its life. -
Page 51: F31 Orientation Correction Function
■[F31] Orientation correction function This function can correct a display error of flow caused by the mounting orientation. If the product is mounted vertically, the displayed flow rate will be seriously affected around a zero flow rate and when the fluid pressure is high. This function can be used to reduce the display error that occurs when the product is mounted vertically. -
Page 52: F80 Display Off Mode
■[F80] Display OFF mode This function will turn the display OFF if no buttons are pressed for 30 seconds. <Operation> Press the button in function selection mode to display [F80] on the main display. [dSP] and [the current set value] are displayed in turn on the sub display. Press the button. -
Page 53: F81 Security Code
■[F81] Security code A security code can be selected, which must be entered to unlock the keys. For the key-lock function, refer to page 59. <Operation> Press the button in function selection mode to display [F81] on the main display. [PiN] and [the current set value] are displayed in turn on the sub display. -
Page 54: F82 Line Name
■[F82] Line name A line name can be input (up to 6 characters and/or numbers). The sub display setting can be changed to show a line name. (Refer to [F10] Sub display on page 43.) <Operation> Press the button in function selection mode to display [F82] on the main display. [LiNE] and [the current set value] are displayed in turn on the sub display. -
Page 55: F90 Setting Of All Functions
■[F90] Setting of all functions All functions can be set one after the other, without having to select each one separately in function selection mode. <Operation> Press the button in function selection mode to display [F90] on the main display. [ALL] is displayed on the sub display. - Page 56 Order of function settings Order Function Applicable model [ r EF] Reference condition All models [ Un i] Unit selection function Model with unit conversion function [ oU1] OUT1 Output mode All models [ 1ot] OUT1 Switch operation All models ] OUT1 Set value All models ] OUT1 Hysteresis...
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Page 57: F98 Output Check
■[F98] Output check The operation of the output can be checked by switching the output ON/OFF by pressing a button, without the need for a flow of fluid. <Operation> Press the button in function selection mode to display [F98] on the main display. [tESt] is displayed on the sub display. -
Page 58: F99 Reset To The Default Settings
■[F99] Reset to the default settings The product can be returned to the default settings. <Operation> Press the button in function selection mode to display [F99] on the main display. [iNi] is displayed on the sub display. Press the button. Reset to the default settings [ini] is displayed on the main display. -
Page 59: Other Functions
Other Functions ●Reset operation The accumulated flow value can be reset, when displaying the accumulated flow. To reset the accumulated flow, press the buttons simultaneously for 1 second or longer. The peak/bottom value can be reset, when displaying the peak value (bottom value). To reset the peak/bottom value, press the buttons simultaneously for 1 second or longer. - Page 60 ●Key lock The key-lock function is used to prevent errors occurring due to unintentional changes of the set values. Valid operations when keys are locked When the button is pressed, the sub display will scroll through in the order of [LoC], [Set value] and [LoC].
- Page 61 <Operation-With security code input-> Make [F81] Security code valid in advance. Locking 1. Press and hold the button for 5 seconds or longer in measurement mode. [UNLoC] will be displayed on the sub display. 2. Press the button to select keys lock [LoC]. 3.
- Page 62 Change of security code In the default setting, the security code is set to [000], but this can be changed to any number. <Operation> 1. When the key lock has been set, perform the key unlocking procedure (step 4). 2. After the display changes to [UNLoC], press and hold the buttons simultaneously for 5 seconds or longer.
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Page 63: Maintenance
Maintenance How to reset the product after a power cut or when the power has been unexpectedly removed The settings of the product are retained from before the power cut or de-energizing. The output condition also recovers to that before power cut or de-energizing, but may change depending on the operating environment. -
Page 64: Troubleshooting
Troubleshooting If an operation failure of the product occurs, please confirm the cause of the failure from the following table. If a cause applicable to the failure cannot be identified and normal operation can be recovered by replacement with a new product, this indicates that the product itself was faulty. Problems with the product may be due to the operating environment (installation etc). - Page 65 Fault Possible cause Countermeasures Incorrect wiring. Correct the wiring. No output. Loose connector. Connect the connector. Install a filter or mist separator on the IN side if there is a risk of foreign matter entering the product. Foreign matter in the sensor. If there is foreign matter on the mesh, remove it completely, taking care not to damage the product.
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Page 66: Error Indication
■Error indication Error name Error display Description Measures The flow has exceeded the upper limit of Reduce the flow. the flow display range. Instantaneous flow Fluid is flowing in the reverse direction error Connect the fluid flow in the by at least -5% of the maximum rated correct direction. -
Page 67: Specification
Specification ■Specifications Model PFMC7501 PFMC7102 PFMC7202 Air, N Applicable fluid (Air quality: ISO8573-1 1.1.2 to 1.6.2) Fluid Fluid temperature range 0 to 50 Detecting method Heating type sensor Rated flow range 5 to 500 L/min 10 to 1000 L/min 20 to 2000 L/min... - Page 68 Model PFMC7501 PFMC7102 PFMC7202 Voltage output: 1 to 5 V, Current output: 4 to 20 mA Output type (Refer to analogue output graph) Voltage Output impedance approx. 1 kΩ output Analogue 5 output Impedance Maximum load impedance: 600 Ω at 24 VDC Current 300 Ω...
- Page 69 1: When using the accumulated value hold function, calculate the product life from the operating conditions, and use the product within its life. The maximum access limit of the memory device is 1 million cycles. If the product is operated 24 hours per day, the product life will be as follows: Data memorized every 5 minutes --- 5 minutes x 1 million times = 5 million minutes = 9.5 years Data memorized every 2 minutes --- 2 minutes x 1 million times = 2 million minutes = 3.8 years...
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Page 70: Characteristics Data
1.04 V Current output 4 mA 4.16 mA 20 mA Minimum flow of Maximum flow of Model rated flow range rated flow range PFMC7501 5 L/min 500 L/min PFMC7102 10 L/min 1000 L/min PFMC7202 20 L/min 2000 L/min ●Pressure loss... - Page 71 ●Straight inlet piping length and accuracy (reference value) The smaller the piping size, the more the product is affected by the straight piping length. The smaller the flow rate, the less the product is affected by the straight piping length. The straight piping length shall be 8 cm or longer in order to maintain ±3%F.S.
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Page 72: Dimensions
■Dimensions PFMC7501/7102/7202 Symbol Piping port size Model PFMC7501/7102 Rc1/2, NPT1/2 60.6 41.2 13.6 PFMC7202 Rc3/4, NPT3/4, G3/4 66.1 46.7 17.5 16.8 PFMC7501/7102 G1/2 60.6 41.2 13.6 Bracket dimensions Symbol Model PFMC7501/7102 PFMC7202 -71- No.PF※※-OMS0002-B... - Page 73 Lead wire with M8 connector (ZS-40-A) -72- No.PF※※-OMS0002-B...
- Page 74 Revision history A: Contents revised in several places. [September 2016] B: Contents revised in several places. [August 2018] 4-14-1, Sotokanda, Chiyoda-ku, Tokyo 101-0021 JAPAN Tel: + 81 3 5207 8249 Fax: +81 3 5298 5362 http://www.smcworld.com Note: Specifications are subject to change without prior notice and any obligation on the part of the manufacturer. ©...
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