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NO.ZL3-OM00701-A PRODUCT NAME Digital pressure switch for energy-saving control ejector MODEL / Series / Product Number ZSE10(ZL3、ZL6 series)...
Table of Contents Safety Instructions How to order read wires Summary of Product parts Definition and terminology Wiring Wiring Internal circuit and wiring example Easy Setting Measurement mode Function Setting Function selection mode Default setting F0 Unit selection function F1 OUT1 F2 OUT2 F3 Response time F4 Auto-preset...
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 1) standards (ISO/IEC) and other safety regulations.
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Caution 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.
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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.
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Caution ■Do not touch the terminals and connectors while the power is on. Otherwise electric shock, malfunction or damage to the product can result. ■Perform sufficient trial run. Otherwise, injury or damage to the system can result due to suction failure depending on the conditions of the suction of the workpiece or the pressure switch settings.
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●Product handling Installation •Tighten to the specified tightening torque. If the tightening torque is exceeded the mounting screws and brackets may be broken. If the tightening torque is insufficient, the product can be displaced and loosen the mounting screws. •Be sure to ground terminal FG when using a commercially available switch-mode power supply. •Do not drop, hit or apply excessive shock (over 100 m/s ) to the Pressure switch.
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Wiring •Do not pull the lead wires. In particular, never lift a Pressure switch equipped with fitting and piping by holding the lead wires. Otherwise damage to the internal parts can result, causing malfunction or to be off the connector. •Avoid repeatedly bending or stretching the lead wire, or placing heavy load on them.
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•Prevent foreign matter such as remnant of wires from entering the Pressure switch. Take proper measures for the remnant not to enter the Pressure switch in order to prevent failure or malfunction. •Do not use the product in an environment that is exposed to temperature cycle. Heat cycles other than ordinary changes in temperature can adversely affect the inside of the product.
Summary of Product parts Output (OUT1) LED (green): LED is ON when the switch output (OUT1) is ON. Output (OUT2) LED (Red): LED is ON when the supply pilot valve is ON. LED display: Displays the current status of pressure, setting mode and error code. button (UP): Selects a mode and increases ON/OFF set value.
■Definition and terminology Terms Meaning Display type where each individual display character consists of up to 7 separate 7-segment indication sections (called segments) (The figure “8” uses all 7 segments) Indicate the command signal which generate vacuum. Adsorption directive signal (It is necessary to input the pressure switch) A function of the Pressure switch to automatically setup pressure just by having equipment hold and release a workpiece via vacuum adsorption.
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Terms Meaning Indication accuracy Shows the deviation between displayed pressure value and the true pressure. Insulation resistance of the product. Insulation resistance The resistance between the electrical circuit and the case. How fine the rated pressure range can be segmented. (Example: If a product Indication resolution for 0 to 1 MPa can indicate pressure by 0.001 MPa, the indication resolution is 1/1000.)
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Terms Meaning Peak value display Displays the maximum vacuum pressure reached up to that moment. The solenoid valve which turns on and off the ejector. Pilot valve for air supply (This pressure switch outputs signal to the supply pilot valve) PNP (open collector) (output) The switch that uses the PNP transistor for output.
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Terms Meaning Setting of function Refer to "Function selection mode". Setting pressure range. The pressure range within which switch output can be set. Output type that only has 2 possible states, ON or OFF. Sometimes referred to Switch output as "ON-OFF output". Function to change the unit in which the value of pressure is indicated.
Wiring ■Wiring ○Connection •Connections should only be made with the power supply turned off. •Use separate routes for the Pressure switch 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.
■Internal circuit and wiring example •NPN output type NPN open collector 2 outputs, Max. applied voltage 26.4VDC, Max. load current 80mA Residual voltage 2 V or less •PNP output type PNP open collector 2 outputs, Max. load current 80mA, Residual voltage 2 V or less -16- NO.ZL3-OM00701-A...
Easy Setting ■Measurement mode The measurement mode is the condition where the pressure is detected and indicated, and the switch function is operating. This is the basic mode, and other modes should be selected for setting changes and other function settings. -17- NO.ZL3-OM00701-A...
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See below for the energy saving control operation and the set values which are preset to the switch. If the operation shown below is acceptable, then keep these settings. Function that enables the easy setting of the ON and OFF points of the switch output, and the operation of the supply pilot valve.
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<How to change the set value> 「Normal output (OUT1)」 (1) Press the button once in measurement mode. (Refer to page 17) (2) “P_1" and the set value are displayed in turn. (3) Press the button to change the set value. button is to increase vacuum pressure and the button is to decrease.
Function Setting ■Function selection mode In measurement mode, press the button for 2 seconds or longer to display [F 0]. Select to display the function setting to be changed, [F Press the button for 2 seconds or longer in function selection mode to return to measurement mode. ■Default setting The default settings are as follows •[F 0] Unit selection function...
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Item Page Default setting [F 3] Response time See page 28 2.5 ms [F 4] Auto-preset See page 29 Manual 0% [F 6] Fine adjustment of display value See page 31 [F11] Display resolution See page 32 1000-split [F80] Power saving mode See page 33 [F81] Security code See page 34...
■[F 0] Unit selection function Setting is only possible when using a product with the unit selection function. (kPa/MPa can still be selected if the product does not have the unit selection function.) <Operation> Press the button in function selection mode to display [F 0]. Press the button.
■[F 1] Setting of OUT1 The output mode of OUT1 can be set. Reversed output, pressure value and hysteresis can be set. •List of output modes -24- NO.ZL3-OM00701-A...
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<Operation> Press the button in function selection mode to display [F 1]. Press the button. Move on to the check of output mode. Check of output mode Check the set value same as the display shown to the right, then move on to next setting. Press the button to set.
■[F 2] Setting of OUT2 Set OUT2. Set ON and OFF points of the supply pilot valve, and the range in which an input is not allowed. Operation of OUT2 Supply pilot valve: OUT2 is turned on by the signal for suction. Suction starts by the generation of vacuum pressure.
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<Operation> Press the button in function selection mode to display [F 2]. Press the button to set. Move on to setting of pressure. Press the button to change the set points. Setting ON point of the supply pilot valve Press the button to set.
■[F 3] Response time Select the response time of the switch output. Output chattering can be prevented by setting the response time. <Operation> Press the button in function selection mode to display [F 3]. Press the button. Move on to setting of response time. Setting of response time Press the button to select the...
■[F 4] Auto-preset function This function calculates and sets the pressure values automatically based on the on-going operation. <Operation> Press the button in function selection mode to display [F 4]. Press the button. Move on to setting of auto-preset function. Setting of auto-preset Press the button to select auto-preset.
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•Auto-preset When auto-preset is selected in function selection mode, the set value can be calculated and memorized from the measured pressure. Repeating the suction and release of a workpiece several times automatically optimizes the set value. 1, Selection of auto-preset OUT1 Press the button in measurement mode to display "AP1".
■[F 6] Fine adjustment of display value This function is used to manually perform fine adjustment of the displayed pressure. It is adjustable within the range 5% R.D. ± <Operation> Press the button in function selection mode to display [F 6]. Press the button.
■[F11] Display resolution This function is used to change the pressure display resolution. This can be used to prevent the digits from flickering on the display. <Operation> Press the button in function selection mode to display [F11]. Press the button. Move on to setting of display resolution.
■[F80] Power saving mode Power saving mode is selectable. When selected and no buttons are pressed for 30 seconds, the pressure switch will shift to power saving mode. The default setting is normal mode (power saving mode off). <Operation> Press the button in function selection mode to display [F80].
■[F81] Security code A security code can be selected, which must be entered to unlock the keys when the keys are locked. In the default setting, entry of a security code number is not required. <Operation> Press the button in function selection mode to display [F81]. Press the button.
■[F90] Setting of all functions All functions can be set, one after the other. <Operation> Press the button in function selection mode to display [F90]. Press the button. Move on to setting of all functions. Setting of all functions Press the button to select all functions.
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•Order of function of setting Order Function Selection of display unit Setting of output mode (OUT1) Setting of reversed output (OUT1) Setting of pressure (OUT1) Setting of hysteresis (OUT1) Setting of output mode (OUT2) Supply pilot valve signal ON point Supply pilot valve signal OFF point Setting of hysteresis (OUT2) Set the range in which the supply pilot valve input is prohibited...
■[F96] Check of suction command signal <Operation> Press the button in function selection mode to display [F96]. Press the button. Move on to the suction signal input check. Check of the input of suction command signal status When suction signal is not input, “oFF” is displayed.
■[F98] Check of output Output from the switch can be confirmed. The output can be turned ON/OFF manually. <Operation> Press the button in function selection mode to display [F98]. Press the button. Move on to check of output. Output check Press the button to select output check.
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OUT2 check of output Press the button to select check of output2. Press the After returning to [n](normal output), button for 2 press the button to complete the seconds or output check. longer. Setting of [F98] Check of output completed. Measurement mode.
■[F99] Reset to the default setting If the setting of the pressure switch becomes unknown, the default setting can be restored. <Operation> Press the button in function selection mode to display [F 99]. Press the button. Move on to reset to the default setting. Reset to the default setting Set the display [ON] by pressing the button,...
Other Settings ○Peak/Bottom hold value display The maximum (minimum) vacuum pressure from when the power was supplied to this moment is detected and updated. For peak display, when the button is pressed for 1 second or longer, the maximum vacuum pressure and "Hi"...
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<Operation -With security code-> •Locking 1, Press and hold the button for 5 seconds or longer in measurement mode. [UnL] is displayed. 2, Press the button to select locking of the keys [LoC]. 3, Press the button to enter the setting. •Unlocking 1, Press and hold the button for 5 seconds or longer in measurement mode.
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•How to change the security code At the time of shipment, the security code is set to [000], but this can be changed to any number. <Operation> 1, After the key lock setting has been completed, perform all three steps in the unlock setting procedure.
How to stop energy-saving control function If a large amount of leakage is generated at the work piece adsorption surface, energy-saving control frequently occurs (the valve is turned ON and OFF when the vacuum is generated / stopped). In order to avoid this phenomenon, update the switch setting to stop the energy-saving control as shown below.
Maintenance How to reset the product for 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.
Troubleshooting • Troubleshooting Applicable Pressure switch: ZK2-ZSV-A If an operational failure of the pressure switch occurs, please select the cause of failure from the flow chart below. If a cause applicable to the failure cannot be identified and normal operation can be recovered by replacement with a new pressure switch, this indicates that the pressure switch itself was faulty.
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The display The display is not Refer to fluctuates normal reference No.7 The display Refer to disappears reference No.8 The display Refer to breaks off reference No.9 The display Refer to flashes reference No.9 Pressure display difference when using Refer to 2 or more Pressure reference No.10 switches...
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• Cross-reference for troubleshooting Error Problem Possible cause Investigation method Countermeasure •Output remains (1) Check the set pressure value. (1) Reset the pressure (2) Check the settings of the Indication LED Incorrect pressure settings. hysteresis and output type. remains ON. setting (2) Reset the function •Output remains...
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Error Problem Possible cause Investigation method Countermeasure (1),(2) Connect the (1) Check if the output current is 80 mA or more. appropriate load. (2) Check if the specified load is (3) Use a relay with a surge connected. voltage suppressor or Over current to the (3) Check if a relay without a surge take measures to...
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Error Problem Possible cause Investigation method Countermeasure Incorrect power Check if the power supply voltage is in Supply power supply supply the range 24 VDC ±10%. voltage of 24 VDC ±10%. Check the power supply wiring Check if the brown and blue wires are Correct the wiring and/or Incorrect wiring connected to DC(+) and DC(-)
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Error Problem Possible cause Investigation method Countermeasure Install a 5 m filter to prevent foreign matter from getting into the pressure Check if any foreign matter has Foreign matter port. entered the pressure port. Also, clean the filter regularly to prevent drainage deposits.
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Error Problem Possible cause Investigation method Countermeasure Effect of line pressure fluctuation (1) Check the set pressure values (1) Widen the hysteresis. because (hysteresis) (2) Change the response hysteresis is too (2) Check the response time. time setting. narrow or response time is Operation is too short...
■Error Indication This function is to display error location and content when a problem or an error occurs. Error Name Error Display Error Type Troubleshooting Method Turn the power off and remove the The switch output load current is more Over current Error cause of the over current.
Specification ■Specifications Rated pressure range 100.0 to -100.0 kPa Set pressure range 105.0 to -105.0 kPa Proof pressure 500 kPa Min. display unit 0.1 kPa Applicable fluid Air, inert gas and non-flammable gas Power supply voltage 24 VDC ±10%, ripple max. 10% (with polarity protection ) pk-pk Current consumption...
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