Omron ZEN Operation Manual
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Omron ZEN Operation Manual

Programmable relay
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ZEN
Cat.No. W385-E1-04

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Summary of Contents for Omron ZEN

  • Page 1 Cat.No. W385-E1-04...
  • Page 2 ZEN Programmable Relay Operation Manual Produced April 2003...
  • Page 4 Notice: OMRON products are manufactured for use according to proper procedures by a qualified operator and only for the purposes described in this manual. The following conventions are used to indicate and classify precautions in this man- ual. Always heed the information provided with them. Failure to heed precautions can result in injury to people or damage to property.
  • Page 5 OMRON Product References All OMRON products are capitalized in this manual. The word “Unit” is also capital- ized when it refers to an OMRON product, regardless of whether or not it appears in the proper name of the product. Visual Aids The following headings appear in the left column of the manual to help you locate dif- ferent types of information.

  • Page 6: Table Of Contents

    TABLE OF CONTENTS PRECAUTIONS ........xi Safety Precautions .
  • Page 7 Using Memory Cassettes ........97 Connecting the ZEN Support Software ......99 SECTION 6 Troubleshooting.
  • Page 8 Relay and includes the sections described below. Please read this manual carefully and be sure you understand the information provided before attempting to install or operate the ZEN. Be sure to read the precautions provided in the following section. Precautions provides general precautions for using the ZEN and related devices.

  • Page 10: Precautions

    This section provides general precautions for using the ZEN Programmable Relay. The information contained in this section is important for the safe and reliable application of the ZEN. You must read this section and understand the information contained before attempting to set up or operate the ZEN.

  • Page 11: Safety Precautions

    • The ZEN outputs may remain ON or OFF due to deposition or burning of the output relays or destruction of the output transis- tors. As a countermeasure for such problems, external safety measures must be provided to ensure safety in the system.

  • Page 12: Application Precautions

    • Always turn ON power to the ZEN before turning ON power to the I/O circuits. If the ZEN power supply is turned ON after the I/ O power supply, temporary errors may result in operation.

  • Page 13: I/O Connections And Startup Precautions

    Unit. Not checking the program may result in an unexpected operation. Handling • Use, store, and transport the ZEN under the limits given for gen- eral specifications in this manual. • Do not attempt to disassemble, repair, or modify any Units. Any attempt to do so may result in malfunction, fire, or electric shock.

  • Page 14: Maintenance

    Transportation and Storage • Use special packaging boxes when transporting the ZEN and do not subject it to excessive shock or vibration or drop it during shipment.

  • Page 15: Operating Environment Precautions

    • Where the ZEN is exposed to direct sunlight. • Where the ambient temperature or humidity is beyond the speci- fied ranges. • Where the ZEN may be affected by condensation due to radical temperature changes. • Where there is any corrosive or inflammable gas.

  • Page 16: Conformance To Ec Directives

    1,000 VAC and 75 to 1,500 VDC meet the required safety standards for the ZEN (EN61131-2). Conformance to EC Directives The ZEN complies with EC Directives. To ensure that the machine or device in which the ZEN is used complies with EC Directives, the ZEN must be installed as follows: 1,2,3...
  • Page 17 (Refer to EN50081-2 for more details.) Countermeasures are not required if the frequency of load switching for the whole system with the ZEN included is less than 5 times per minute. Countermeasures are required if the frequency of load switching for the whole system with the ZEN included is more than 5 times per minute.

  • Page 18: Operating Mode At Startup

    Operating Mode at Startup Circuit Current Characteristic Required element Diode method The diode connected in The reversed dielectric parallel with the load strength value of the diode changes energy accumu- must be at least 10 times as lated by the coil into a cur- large as the circuit voltage rent, which then flows into value.

  • Page 19: Memory Backup

    Memory Backup Memory Backup The ladder program and settings are stored in EEPROM and thus will not be lost even if the power supply is turned OFF for an extended period of time (e.g., 2 days at 25°C). The status of the following data, however, is backed up by an internal capacitor, and may be lost if power is turned OFF for an extended period of time: ON/OFF status of holding bits (H), holding timers (#), and counters (C) and the pre-...

  • Page 20: Version Upgrades

    Version Upgrades Version Upgrades The following table shows the relationship between the versions and functionality of the ZEN CPU Unit and ZEN Support Software Date of CPU Unit Support Software upgrade System Main changes software version January Ver. 1.10 The following functions were added to the CPU...

  • Page 21: Application Precautions For Differences Between Versions

    Version Upgrades Memory Area Comparison between V1 and Pre-V1 CPU Units Area V1 CPU Units Pre-V1 CPU Units ZEN-10C@@@-@-V1 ZEN-20C@@@-@-V1 ZEN-10C@@@-@ CPU Unit input bits I0 to I5 (6 bits) I0 to Ib (12 bits) I0 to I5 (6 bits)

  • Page 22: Cpu Units Covered In This Manual

    Only 6 inputs and 4 outputs can be used in the CPU Unit I/O bits. Any others will be ignored. Compatibility of Programs Depending on Support Software Version CPU Unit system software Support Software Ver. 1.00 Ver. 2.00 Ver. 3.00 ZEN-SOFT01 ZEN-SOFT01-V2 ZEN-SOFT01-V3 Ver. 1.00 Restrictions (See notes 1 and Ver. 1.10 Restrictions Restrictions (See note 1.)
  • Page 23 Version Upgrades xxiv...

  • Page 24: Outline

    SECTION 1 Outline This section gives an outline of the ZEN, including example applications, the system configurations and basic operations. Outline ............2 Features and Part Names .

  • Page 25: Outline

    20 programmable I/O points (12 inputs and 8 outputs) along with 16 of each of the following: Timers, counters, displays, etc. In this manual, the ZEN Programmable Relay is referred to as merely the “ZEN.” The ZEN comes in basically two types: LCD and LED.
  • Page 26 Section 1-1 Outline Smaller Control Panels The ZEN is very small at 90 x 70 x 56 mm (H x W x D) and mounts essentially anywhere. Note Dimensions are 90 x 122.5 x 56 mm (H x W x D) for CPU Units with 20 I/O points.
  • Page 27 Use an optional Memory Cassette to easily save and copy programs. Refer to page 97. Ladder program data/settings. Memory Cassette Programming and Monitoring from a Personal Computer Windows-based ZEN Support Software is available and provides a complete simulation function. Refer to page 99. ZEN Support Software (CD-ROM) Greater Switching Capacity The output contacts have 8-A switching capacity (250 VAC).
  • Page 28 Section 1-1 Outline Refer to page 45. 8 A max. 250 V AC Inputs For CPU Units with AC power supply inputs, 100 to 240 VAC can be directly connected. Refer to page 35. 100 to 240 VAC Circuit protector Easy Program Design There are 4 different operations that can be set for bit outputs.
  • Page 29 Section 1-1 Outline Incremental and Decremental Counters There are 16 built-in counters that can be switched between incre- menting and decrementing. Use Comparators to enable programming multiple outputs from a counter. Counters: Refer to page 70. Comparators: Refer to page 79. Control number of cars entering and leaving a car park.
  • Page 30 Section 1-1 Outline Easier Maintenance Use the display function in LCD-type CPU Units to display user-set messages, the date, time, or other data. Button switches can also be used as input contacts. Applications include usage as a simple dis- play operation panel. Refer to page 82.

  • Page 31: Features And Part Names

     Features and Part Names 1-2-1 Features and System Configuration The ZEN is small but has a wide range of functions and is easy to use. The ZEN facilitates small-scale automatic control. LCD-type CPU Unit Features • Simple button-operated programming.
  • Page 32 CPU Units with 20 I/O points, which have Software Memory Cassette one common for each 2 outputs for 4 of the 8 outputs. (optional). Programs can be created, edited, saved, and printed, and operation can be simulated using the ZEN Support Software (optional).

  • Page 33: Part Names

    Operation buttons Expansion Unit Output terminals connector cover. Battery Unit connector ZEN Support Software connector ZEN Support Software connector (also used for Memory Cassette.) (also used for Memory Cassette.) Remove this cover to Remove this cover to (Remove the seal to connect Expansion Unit.
  • Page 34 I 9 I a 20C1AR-A-V1 Operation buttons Output terminals Expansion Unit connector cover. Battery Unit connector ZEN Support Software connector Remove this cover to (Remove the seal to (also used for Memory Cassette.) connect Expansion Unit. connect the Battery Unit.)
  • Page 35 LED-type CPU Units with 10 I/O Points (without LCD/Operation Buttons) The ZEN is also available in an LED type that provides full operating functionality, but no direct programming input. The ZEN Support Soft- ware or a Memory Cassette containing a program is required.
  • Page 36 (without LCD/Operation Buttons) Power supply Inputs Outputs Input Analog Calen- Model num- filters inputs dar/time 100 to 240 100 to 12 Relays 8 Yes ZEN-20C2AR- VAC, 50/60 240 VAC iso- A-V1 lated 24 VDC 24 VDC ZEN-20C2DR- D-V1 Tran- ZEN-20C2DT- sistors D-V1...
  • Page 37 Analog compara- Timer/counter Yes (ZEN Support Software comparator required.) Button switches Display function Settings Display language Yes (Also possible with ZEN Support Software.) Backlight cutout Yes (Also possible with ZEN time Support Software.) Input filters Yes (Also possible with ZEN Yes (ZEN Support Software Support Software.)
  • Page 38 Features and Part Names Expansion I/O Units No. of I/O Inputs Outputs Model Points 8 I/O 100 to 240 VAC, 50/60 Isolated Relays ZEN-8EAR 24 VDC Isolated Relays ZEN-8EDR Transis- ZEN-8EDT tors 4 inputs 100 to 240 VAC, 50/60 Isolated...

  • Page 39: Display Screen And Basic Operations

    Section 1-3 Display Screen and Basic Operations Display Screen and Basic Operations The display screen for the LCD-type CPU Units and the operations of the buttons are shown below. DEL Button ALT Button Cursor Buttons ESC Button OK Button Icon Meanings Icon Meaning Displayed while in RUN mode.
  • Page 40 Section 1-3 Display Screen and Basic Operations Operation Button Names and Operations Button Function Menus Writing ladder program Setting parameters Button switch (See85.) Deletes inputs, outputs, con- B6 ON nection lines, and blank lines. Switches between normally B7 ON open and normally closed conditions.

  • Page 41: Screens

    Section 1-3 Display Screen and Basic Operations 1-3-1 Screens STOP Mode RUN Mode When power is turned ON When power is turned ON When Expansion I/O Unit When Expansion I/O Unit is connected. is connected. Display Function Screen Display Function Screen (User- (User- specified...
  • Page 42 Section 1-3 Display Screen and Basic Operations Display Screens Main Screen Operating mode CPU input bit (I) status Time (min:s) ( : OFF/ : ON) CPU Units CPU Units with 10 I/O with 20 I/O I0 I1 I2 I3 I4 I5 I6 I7 I8 I9 I0 I1 I2 I3 I4 I5 points points...
  • Page 43 Memory Cassette Operation (Refer to page 97.) T6W@ Transfers programs GP69 @S6T@ between ZEN and the Memory Cassette and initializes the Memory Cassette. Note: Displayed only when a Memory Cassette is mounted. Switches to RUN mode. Changes the settings for timers, counters, and analog comparators.
  • Page 44 Do not use. For future system expansion. Setting Node Number (Refer to page 99.) NODE NO Set to the node number specified using the ZEN Support Software. Reading System Information (Refer to page 94.) U02.00 Read system information, such as the CPU...

  • Page 45: Basic Operation

    Section 1-3 Display Screen and Basic Operations 1-3-2 Basic Operation Menu Selection Example Use the Up/Down Buttons to move the cur- Q6S6H@U@S Main menu T@UÃ8GP8F sor. display G6IBV6B@ Flashing cursor G6IBV6B@ Press the OK Button to select the flashing menu. The settings will flash on a reversed @IBGDTC display.
  • Page 46 Section 1-3 Display Screen and Basic Operations Example Operation in the Ladder Program Edit Screen The highlighted cursor will appear in the ini- Select tial write position. During highlighted cursor Program/ display, the cursor can be moved to the input Edit.
  • Page 47 Section 1-3 Display Screen and Basic Operations Press the ALT Button with the highlighted cursor in the input writing position to change the cursor to a flashing left arrow to enable connecting lines to be drawn. Up/Down Buttons: Draw vertical connecting lines.
  • Page 48 Section 1-3 Display Screen and Basic Operations Example Parameter Settings Screen Operation When Parameter is selected, the parameter Select settings are displayed. Parameters on menu screen. (1) Selecting Parameters to Display Press the OK Button to change the high- lighted cursor to a flashing cursor. Use the Up/Down Buttons to select another timer.
  • Page 49 Section 1-3 Display Screen and Basic Operations Use the Left/Right or Up/Down Buttons to move the highlighted cursor to the parameter to be set. Press the OK Button to confirm the set posi- tion. The cursor will change to a flashing cur- sor.

  • Page 50: Memory Areas

    Section 1-4 Memory Areas Memory Areas I/O, Work, and Internal Holding Bits Name Type Function Ladder Page addresses programs bits CPU Unit 0 to 5 CPU Units Reflect the ON/OFF N.O./N.C. input bits with 10 I/O pts status of the input inputs devices connected to 0 to b...
  • Page 51 Section 1-4 Memory Areas Timers and Counters Name Type No. of Function Use in lad- Page addres tim- der pro- ers/coun grams ters Timer 0 to f Can be switched between ON delay, N.O./N.C. OFF delay, one-shot, and flashing condition pulse operation.(See note.) Holding 0 to 7...

  • Page 52: Allocating I/O Bit Numbers

    Section 1-5 Allocating I/O Bit Numbers Allocating I/O Bit Numbers For CPU Units with 10 I/O points, the input bit addresses I0 to I5 and output bit addresses Q0 to Q3 are always allocated to the CPU Unit. For CPU Units with 20 I/O points, the input bit addresses I0 to Ib and output bit addresses Q0 to Q7 are always allocated to the CPU Unit.

  • Page 53: Preparations For Operation

    Connect Power Supply, Input, and Output Power Inputs Devices supply Wire the ZEN to the power supply, input, and output devices. Refer to page 33. Make Initial Settings Make the settings required before programming, such as date, time, and display language. Refer to pages 50 and 51.

  • Page 54: Installation And Wiring

    Installation and Wiring This section explains how to mount and wire the ZEN CPU Units and Expansion I/O Units. Mounting ........... . 32 2-1-1 Installation Method .

  • Page 55: Mounting

    Always mount the ZEN inside a control panel. The ZEN can either be mounted to the surface of the control panel or onto DIN Track. Orientation Do not mount the ZEN in any orientation other than the one shown in the following diagram. Bottom...

  • Page 56: Wiring

    Wiring General Wiring Precautions External Wiring Do not run ZEN I/O lines in the same duct or conduit as power lines. Hanging Ducts Leave at least 300 mm between the power cables and the I/O or con- trol wiring, as shown in the following diagram.
  • Page 57 Control cables and power lines I/O lines Power cables Do not run ZEN I/O lines in the same duct or conduit as power lines. Connectable Wires • A terminal block designed for solid wires is used. Use solid wires when wiring.
  • Page 58 ZEN power supply circuit sepa- rately from other power circuits. • When using more than one ZEN, to prevent voltage drops due to inrush current and circuit-breaker malfunctions, it is recom- mended that each one is wired separately.
  • Page 59 The input signals cannot be read if the po- larity is incorrect. Include a circuit protector or breaker for the ZEN in the power supply circuit. There are no restrictions on the polarity of the inputs on the Ex- pansion I/O Units.
  • Page 60 Section 2-2 Wiring • Example: Connecting to a CPU Unit Two-wire sensor 330k 300k I0 to I5 Internal circuit • Example: Connecting to an Expansion I/O Unit Internal Two-wire 4.7k circuit sensor Use a resistance that satisfies both of the following condi- tions.
  • Page 61 Section 2-2 Wiring DC Power Supplies CPU Units with 10 I/O Points Connecting a Negative Common (V1 CPU Units) 24 VDC, 6.5 W Note: Supply power to the COM terminal at the same time as to the power supply terminal. Input device CPU Unit with 10 I/O points...
  • Page 62 Section 2-2 Wiring Connecting to Pre-V1 CPU Units 24 VDC, 6.5 W Note: With pre-V1 CPU Units, the negative side of the power supply circuit is connected internally as the common for the Input device input circuits. Input + – circuits cannot be connected with a positive common;...
  • Page 63 Section 2-2 Wiring Connecting Analog Input Devices (Input Range: 0 to 10 V) to Input Terminals Ia and Ib 24 VDC, 6.5 W − DC power supply CPU Unit with 20 I/O points Connecting Positive Common (V1 CPU Units Only) Note: 1.
  • Page 64 Section 2-2 Wiring Precaution Do not connect the + and - DC power supply in reverse on CPU Units with DC power supplies. With V1 CPU Units, both PNP and NPN sensors can be connect- ed to DC input circuits. Connecting PNP Sensors + (power supply) output...
  • Page 65 Section 2-2 Wiring Input Devices The following table shows how to connect various input devices. Device Circuit diagram Relay output COM (+) NPN open collector Sensor power supply Output COM (+) NPN current output Use the same power supply for the input and sensor.
  • Page 66 Section 2-2 Wiring Use only PNP sensors for pre-V1 CPU Units. NPN sensors can- not be connected directly. To connect an NPN sensor, connect it through a relay or connect external resistance, as shown below. Be sure to allow for the reverse logic that will result from this type of connection •...
  • Page 67 : ZEN's input impedance (kΩ) R: Bleeder resistance (kΩ) : ZEN's input current (mA) W: Bleeder resistor's power rating (W) : ZEN's OFF voltage (V) = 5.0 V L c × 5.0 kΩ max. W min. I × L c − 5.0...
  • Page 68 Section 2-2 Wiring Inductive Loads When connecting an inductive load to an input, connect a diode in parallel with the load. The diode should satisfy the following require- ments: 1,2,3... Peak reverse-breakdown voltage must be at least 3 times the load voltage.
  • Page 69 Section 2-2 Wiring Expansion I/O Unit OUT0 OUT1 OUT2 OUT3 250 VAC, 8 A (cos φ = 1) 24 VDC, 5 A (2) Transistor Output Type For CPU Units with 10 I/O points and Expansion I/O Units, all 4 out- puts in the transistor output circuits have independent circuits.
  • Page 70 Section 2-2 Wiring Output Wiring Precautions Output Short Circuit Protection We recommend adding a protective fuse to all output circuits to pro- tect the output elements and PCBs from burning if the load con- nected to the output terminal short-circuits. Inductive Loads When connecting an inductive load to an input, connect a surge pro- tector or diode in parallel with the load.
  • Page 71 Section 2-2 Wiring Inrush Current Considerations When switching a load with a high inrush current in the ZEN relay output or transistor output model, such as an incandescent lamp, suppress the inrush current as shown below. Countermeasure 1 Countermeasure 2...

  • Page 72: Programming And Operating Methods

    SECTION 3 Programming and Operating Methods This section explains how to create and edit ladder programs and how to use the timers, counters, comparators, display function and buttons switches. Selecting Display Language ........50 Setting the Date and Time .

  • Page 73: Selecting Display Language

    Section 3-1 Selecting Display Language Selecting Display Language There is a choice of 6 display languages for LCD-type CPU Units. The default language is English. Operation to Select German Turn ON the power. Press the OK Button to change to the Menu Screen.

  • Page 74: Setting The Date And Time

    Setting the Date and Time The date and time are not set when the product is shipped. The date and time must be set for models with calendar and time functions before the ZEN can be used. QSPBS6H Select SET Q6S6H@U@S CLOCK.

  • Page 75: Creating Ladder Programs

    Creating Ladder Programs Example Program This section explains how to write ladder pro- grams for LCD-type CPU Units, based on a simple circuit example. Refer to the ZEN-SOFT01-V3 ZEN Support Software Operation Manual (W386) for infor- mation on programming LED-type CPU Units.

  • Page 76: I/O Wiring And Internal Operation

    Section 3-3 Creating Ladder Programs 3-3-1 I/O Wiring and Internal Operation SW1 SW2 Connect switches SW1 and SW2 Power supply to input terminals I0 and I1. terminals Input terminals When SW1, connected to input bit I0, turns ON or OFF, I0 (indicated by (1) in the diagram) turns ON or OFF.

  • Page 77: Writing Ladder Programs

    Section 3-3 Creating Ladder Programs @9DUÃQSPB When the Delete Program operation has 9@G@U@ÃQSPB been completed, the display will return to the original screen. 3-3-3 Writing Ladder Programs STOP mode display QSPBS6H Press the OK Button to switch to the Menu Q6S6H@U@S Screen and select PROGRAM.
  • Page 78 Section 3-3 Creating Ladder Programs Operations in the Ladder Program Edit Screen Two lines of circuits can be displayed at one time on the Ladder Program Edit Screen. • Up to 96 lines can be written. • Up to 3 inputs and 1 output can be writ- ten per line.
  • Page 79 Section 3-3 Creating Ladder Programs 3-3-3-1 Writing an Input for I0 Press the OK Button to display the initial write setting (N.O input I0) and move the flashing cursor to the bit type I position. Use the Up/Down Buttons to select the bit type. Use the Right Button to move the flashing cursor to the 0 position and then use the Up/ Down Buttons to select the bit address.
  • Page 80 Section 3-3 Creating Ladder Programs Memory Areas Symbol Name Bit type and number CPU Unit input bits I0 to I 5 (6 points) (See note 1.) CPU Unit output bits Q0 to Q3 (4 points) (See note 2.) Expansion I/O Unit input X0 to Xb (12 points) (See note 3.) bits Expansion I/O Unit output...
  • Page 81 Section 3-3 Creating Ladder Programs Press the Right Button to draw a connection line to the output. Writing Outputs Output Configuration Bit number Bit type Additional functions Memory Areas Symbol Name Bit type and number CPU Unit output bits Q0 to Q3 (4 outputs) (See note 1.) Expansion I/O Unit output Y0 to Yb (12 outputs) (See note 2.) bits...
  • Page 82 Section 3-3 Creating Ladder Programs Additional Functions for Bit Outputs [: Normal output S: Set R: Reset A: Alternate Q0 turns ON and OFF Q1 turns ON and stays Q2 is forced OFF Q3 alternates between when execution condi- ON when execution when execution condi- On and OFF each time tion I0 turns ON and...
  • Page 83 Section 3-3 Creating Ladder Programs tons to select additional functions or select the bit address. Press the OK Button twice to complete writ- ing output Q0. The highlighted cursor will move to the input at the beginning of the next line.
  • Page 84 Section 3-3 Creating Ladder Programs Press the Up Button to simultaneously draw a connection line both vertically and horizon- tally. The cross (+) indicates an intersection. Press the OK Button to complete writing the connection line and change to a highlighted flashing cursor.

  • Page 85: Confirming Ladder Program Operation

    Checks Before Turning ON the Power Check that the ZEN is mounted and wired correctly. Check that the operation of the ZEN will not have a negative im- pact on the system. Check for any dangers. Turn ON the power supply to the ZEN.
  • Page 86 Section 3-4 Confirming Ladder Program Operation Checking Operation Changing Operating Mode QSPBS6H Press the OK Button to display the Menu Q6S6H@U@S Screen and press the Down Button to move T@UÃ8GP8F the flashing cursor to RUN. HPIDUPS Press the OK Button to switch from STOP TUPQ Q6S6H@U@S mode to RUN mode.

  • Page 87: Correcting Ladder Programs

    Section 3-5 Correcting Ladder Programs Correcting Ladder Programs 3-5-1 Changing Inputs Change contact Q0 to M1. Move the highlighted cursor to the input to be changed. Press the OK Button to change the high- lighted cursor to a flashing cursor and move the flashing cursor to the bit type position.

  • Page 88: Deleting Inputs, Outputs, And Connection Lines

    Section 3-5 Correcting Ladder Programs 3-5-3 Deleting Inputs, Outputs, and Connection Lines Move the highlighted cursor to the position of the input, output, or connection line to be deleted and press the DEL Button. Example: Deleting Serial Input M3 Move the high- lighted cursor to the position of the input to be deleted.

  • Page 89: Deleting Blank Lines

    Section 3-5 Correcting Ladder Programs Press the ALT Button to reserve a 1-line space between the parallel inputs. Blank line The vertical connection lines will be automat- ically extended. Note A blank line cannot be inserted if an input or connection line is written in the last line (the 96th line).

  • Page 90: Using Timers (T) And Holding Timers (#)

    Using Timers (T) and Holding Timers (#) Using Timers (T) and Holding Timers (#) The ZEN has 16 built-in timers and 8 built-in holding timers. Timers The present value being timed will be reset when the timer switches from RUN mode to STOP mode or the power is turned OFF.

  • Page 91: Settings In The Ladder Program Edit Screen

    Section 3-6 Using Timers (T) and Holding Timers (#) Holding Timer Operation (#0 to #7) Timer type Operation Main applications ON delay Turns ON When opera- Trigger input timer only after a set tion is to be Reset input interval after continued Setting Present...

  • Page 92: Parameter Monitor Screen Display

    Section 3-6 Using Timers (T) and Holding Timers (#) Timer Types ON delay OFF delay One-shot pulse Flashing pulse Time Units and Settings 00.01 to 99.99 s (in 0.01-s units) Error: 0 to –10 ms M:S 00 min 01 s to 99 min 59 s (in minutes and sec- Error: 0 to –1 s onds) H:M 00 h 01 m to 99 h 59 m (in hours and minutes)

  • Page 93: Using Counters (C)

    Section 3-7 Using Counters (C) Using Counters (C) Up to 16 counters can be used in incremental or decremental mode. The present value for counters and the status of counter bits (ON/OFF) are held even when the operating mode is changed or there is a power inter- ruption.

  • Page 94: Settings In The Parameter Settings Screen

    Section 3-7 Using Counters (C) Reset input R (RES) When the reset input turns ON, the present value returns to 0 and the counter bit turns OFF. Count inputs are not accepted while the reset input is ON. Turns ON when the counter has counted out (PV ≥ SV) Count input Note Only C0 to C7 (8 points) are supported by pre-V1 CPU Units.

  • Page 95: Using Weekly Timers (@)

    Section 3-8 Using Weekly Timers (@) Using Weekly Timers (@) Weekly timers turn ON between the specified start and stop times on the specified days. Weekly timers have 16 points (@0 to @f.) Operation Day of the week Tues Thurs 24:00 Stop time 17:30...

  • Page 96: Parameter Monitor Screen Display

    Section 3-8 Using Weekly Timers (@) Time Start time 00:00 to 23:59 Stop time 00:00 to 23:59 Monitor Operating parameters can be monitored enabled/dis- and settings changed. abled Operating parameters cannot be moni- tored or settings changed. Relationship between Start and Stop Days and Times Setting and operation Setting Operation...

  • Page 97: Using Calendar Timers (*)

    Section 3-9 Using Calendar Timers (*) Using Calendar Timers (*) Calendar timers turn ON between specified dates. There are 16 cal- endar timers (*0 to *f). Operation Dec 31 End date Sep 1 Start date Apr 1 Jan 1 Calendar timer The calendar timer bit is ON between 1 April and 31 August.

  • Page 98: Analog Inputs (Analog Comparators (A))

    Section 3-10 Analog Inputs (Analog Comparators (A)) Relationship between Start and Stop Dates Setting and operation Setting Operation example Start and stop When start date is ON: 04/01 Operates between 1 April and 31 August. date settings before stop date OFF: 09/01 (See note.) and operation...
  • Page 99 Section 3-10 Analog Inputs (Analog Comparators (A)) Analog signal input: Device with Device with 0.0 to 10.0 V 24 VDC 24 VDC analog voltage analog voltage output output − − I 0 I 1 I 3 I 4 I 6 I 7 I 9 I a 10C1DR-D-V1 20C1DR-D-V1...

  • Page 100: Settings In The Ladder Program Edit Screen

    Section 3-10 Analog Inputs (Analog Comparators (A)) 3-10-1 Settings in the Ladder Program Edit Screen The analog comparator input is written in the Ladder Program Edit Screen. Settings are made in the Parameter Settings Screen. Analog comparator bit Comparison result output Analog comparator address A0 to A3 (4 comparators)

  • Page 101: Parameter Monitor Screen Display

    Section 3-10 Analog Inputs (Analog Comparators (A)) 3-10-3 Parameter Monitor Screen Display • Comparing Analog Inputs • Comparing Analog Inputs (When I4/Ia ≤ I5/Ib) and Constants (When I4/Ia ≥ constant) Analog input 1 (I4/Ia) present value Analog input 1 (I4/Ia) present value Analog comparator Analog comparator bit status...

  • Page 102: Comparing Timer/Counter Present Values Using Comparators (P)

    Section 3-11 Comparing Timer/Counter Present Values Using Comparators (P) 3-11 Comparing Timer/Counter Present Values Using Comparators (P) Timer (T), holding timer (#), and counter (C) present values can be compared. The present values of the same type of timer or counter can be compared, or they can be compared to constants.

  • Page 103: Settings In The Parameter Settings Screen

    Section 3-11 Comparing Timer/Counter Present Values Using Comparators (P) 3-11-2 Settings in the Parameter Settings Screen • Comparing Holding Timers and • Comparing Counters (When counter 1 (C1) ≤ counter 2 Constants (When Holding Timer #0 ≥ 12 min (C2)) 34 s) Comparator Comparator...

  • Page 104: Parameter Monitor Screen Display

    Section 3-11 Comparing Timer/Counter Present Values Using Comparators (P) 3-11-3 Parameter Monitor Screen Display • Comparing Holding Timers and • Comparing Counters (When counter 1 (C1) ≤ counter 2 Constants (When Holding Timer #0 ≥ 12 min (C2)) 34 s) Holding timer 0 (#0) present value Counter 1 (C1) present value Timer/counter comparator...

  • Page 105: Displaying Messages (Display Bits (D))

    Settings Details Settings Details !Caution The ZEN ladder program is executed in order of ascending line numbers. If more than one item is displayed on the same line, the display function that was executed last will be shown on the dis- play and previous ones will be deleted.

  • Page 106: Settings In The Parameter Settings Screen

    Use operation buttons to move to the display function screen. When L2 or L 3 are selected (switching to display function screen), the ZEN switches to the display function screen if the dis- play function is enabled and the specified data is displayed. The Main Screen will no longer be displayed.
  • Page 107 1.10 or later. For details on the CPU Unit version, se- lect Other/System information. (Refer to page 94.) ZEN Support Software of Ver. 2.00 or later supports these func- tions. If ladder programs including these functions are uploaded using older-version Support Software, they cannot be read cor- rectly.

  • Page 108: Using Button Switches (B)

    Section 3-13 Using Button Switches (B) Table of Display Characters Ä Å Æ Ç È É          ! " # $ % & ' ( ) 0 1 2 3 4 5 6 7 8 9 @ A B C D E F G H I P Q R S T U V W X Y ` a b c d e f k h i p q r s t u v w x y €...
  • Page 109 When using the buttons as buttons switches, make your selections based on the screen status. The operation buttons can be used for ZEN operations, such as menu selections, regardless of whether or not button switches (B) are being used.

  • Page 110: Special Functions

    SECTION 4 Special Functions This section describes how to protect ladder programs, stabilize inputs, make LCD screen adjustments, and make summer time settings. Protecting Programs..........88 4-1-1 Setting a Password .

  • Page 111: Protecting Programs

    Note Always record your password for future reference when using the password function. You will no longer be able to operate the ZEN if you forget your password. • The password setting range is 0000 to 9999 (4 decimal digits).

  • Page 112: Setting A Password

    Section 4-1 Protecting Programs 4-1-1 Setting a Password Q6S6H@U@S T@UÃ8GP8F Select G6IBV6B@ Other. PUC@S Q6TTXPS9 8PIUS6TU Select 768FGDBCU Password. DIQVUÃADGU@S Q6TTXPS9 Press the OK Button to change to a flashing cursor and enable a password to be set.  Q6TTXPS9 Set the password.

  • Page 113: Stabilizing Input Operations

    Re-enter the password cor- rectly. Stabilizing Input Operations If external input contacts chatter, ZEN operation may become unstable. Set an input filter to stabilize operation. Input filters can be set separately for the CPU Unit and each Expansion I/O Unit.
  • Page 114 Input specifications Input Input filter not filter used used AC input 100 VAC 50 ms 70 ms 240 VAC 100 ms 120 ms DC input 15 ms 50 ms The input filter settings are read when the ZEN starts opera- tion.

  • Page 115: Changing Backlight Automatic Cutout Time

    Section 4-3 Changing Backlight Automatic Cutout Time Changing Backlight Automatic Cutout Time The LCD backlight automatically turns ON when button operations are performed. It then turns OFF automatically 2 minutes after button opera- tions stop. The default backlight cutout setting of 2 minutes can be changed to 10 or 30 minutes or the backlight can be set to remain ON continuously.

  • Page 116: Adjusting Lcd Screen Contrast

    Darker Press the OK Button to confirm the setting. Press the OK Button again to complete the setting. Setting Summertime Set the Summertime function when using the ZEN in countries that use Summertime. T@UÃ8GP8F Select Time/ TVHH@SÃUDH@ Summertime. TVHH@SÃUDH@ Press the OK Button to display the current settings.

  • Page 117: Reading System Information

    Section 4-6 Reading System Information US Type (for Summertime in American countries) EU Type (for Summertime in European countries) Manual (for manual settings) Cancel (for no Summertime) Press the OK Button to confirm the setting. Press the OK Button again to complete the setting.

  • Page 118: Optional Products

    Using Memory Cassettes ........97 Connecting the ZEN Support Software ......99...

  • Page 119: Mounting Battery Units

    (2 days or more at 25°C that data is reset. Mount a Battery Set (optional) for systems where the power supply may be interrupted for long periods. ZEN-BAT01 ZEN-BAT01 Battery Unit Battery Unit...

  • Page 120: Using Memory Cassettes

    Optional Memory Cassettes can be used to save the ladder program and settings and to copy programs and settings to other CPU Units. Mounting Memory Cassettes 1,2,3... Remove the connector cover on the front of the ZEN. LCD-type CPU UNit LED-type CPU Unit (with LCD and...
  • Page 121 Section 5-2 Using Memory Cassettes Transferring Programs QSPBS6H Select Q6S6H@U@S Program in T@UÃ8GP8F STOP mode. @9DUÃQSPB Select Memory Cassette. 9@G@U@ÃQSPB 86TT@U@ The Operation Menu for Memory Cassettes T6W@ GP69 will be displayed. @S6T@ Use the Up/Down Buttons to move the flash- ing cursor and press the OK Button to select an operation.

  • Page 122: Connecting The Zen Support Software

    Connecting the ZEN Support Software Connecting the ZEN Support Software The ZEN Support Software can be used for programming and monitoring. Refer to the ZEN-SOFT01-V3 ZEN Support Software Operation Manual (W386, revision 03 or later) for information on the functions and operation of the ZEN Support Software.
  • Page 123 Connecting the ZEN Support Software Setting Node Addresses When a ZEN Support Software is connected, the node address set on the ZEN Support Software must match the node address set on the CPU Unit. Communications cannot be performed if the node addresses do not match.

  • Page 124: Troubleshooting

    SECTION 6 Troubleshooting This section lists the error messages and provides probable causes and countermeasures for troubleshooting. Troubleshooting ..........102 Error Messages.

  • Page 125: Troubleshooting

    I/O Verification Error Expansion I/O Unit I/O bits (X/Y): Bit not allocated in system configu- ration has been used. Analog comparators (A): Used with AC power supply type. Weekly timers (@)/Calendar timers (∗): Used with ZEN without calen- dar/clock function.
  • Page 126 Error During Program Transfer from Memory Cassette Error message Probable cause Possible solution M/C ERR Memory cassette pro- Save the error-free program to the Memory gram error. Cassette again. Note Use the ZEN Support Software to read error messages for LED- type CPU Units.

  • Page 127: Deleting Error Messages

    Section 6-3 Deleting Error Messages Deleting Error Messages A flashing error message is displayed when an error occurs. Turn OFF the power supply and remove the cause of the error. Press any operation button to delete the error message. Once the error has been removed the display will return to normal.

  • Page 128: Product Configurations

    Power supply Inputs Outputs Calendar Model and clock number function LCD type 100 to 240 100 to Relays 4 out- ZEN- VAC, 50/60 Hz 240 VAC inputs puts 10C1AR-A- With LCD and operation but- (Not isolated) tons 24 VDC 24 VDC...
  • Page 129 Runs on Windows 95, 98, ME, 2000, XP, or ZEN-SOFT01-V3 NT4.0 Service Pack 3 (CD-ROM) Used for offline programming, all parameter set- tings, program transfers, and printing. Personal Computer Connects the computer and ZEN when the ZEN ZEN-CIF01 Connecting Cable Support Software is used. (Cable length: 2 m)
  • Page 130 Contains the follow- CPU Unit ing products and manuals as a (AC power supply) kit. CPU Unit ZEN-SOFT01-V3 ZEN Support ZEN-10C1DR-D-V1 ZEN-KIT02-EV3 Software CPU Unit ZEN-CIF01 Personal Computer (DC power supply) Connecting Cable ZEN Operation Manual (W385) Support Software Operation...
  • Page 131 Appendix A Product Configurations...

  • Page 132: Specifications

    Appendix B Specifications General Specifications Item Specifications Model numbers LCD type ZEN-10C1AR-A-V1 ZEN-10C1DR-D-V1 ZEN-10C2AR-A-V1 ZEN-20C1DR-D-V1 ZEN-10C1DT-D-V1 ZEN-20C1DT-D-V1 LED type ZEN-10C2AR-A-V1 ZEN-10C2DR-D-V1 ZEN-20C2AR-A-V1 ZEN-20C2DR-D-V1 ZEN-10C2DT-D-V1 ZEN-20C2DT-D-V1 Power supply voltage 100 to 240 VAC, 50/60 Hz 24 VDC Allowable power supply voltage 85 to 264 VAC, 47/63 Hz 20.4 to 26.4 VDC...
  • Page 133 Appendix B Specifications Item Specifications Power supply holding time 10 ms min. 2 ms min. Weight 300 g max. Enclosure rating IP20 (Mounted inside a control panel) Note The CPU Units with transistor output is scheduled to be released soon.
  • Page 134 Appendix B Specifications Characteristics Item Specifications Control Stored program I/O control Cyclic scan Programming Ladder language Program capac- 96 lines (up to 3 inputs and 1 output per line) Maximum con- CPU Units with 10 I/O points 34 points (with 3 Expansion I/O Units trol I/O points with 8 I/O points each) CPU Units with 20 I/O points...
  • Page 135 Calendar and clock: Super capacitor (or optional battery) for date, day, and time. Holding time for super capacitor: 2 days max. (25°C Calendar and Available for ZEN- (-V1) only. clock function Precision: ± 2 min/month (25°C) Note The sizes of some memory areas are smaller for pre-V1 CPU Units.
  • Page 136 Appendix B Specifications DC Inputs IN0 to IN3 (IN0 to IN9) (V1 CPU Units) Item Specifications Circuit drawing Input voltage 24 VDC +10%, –15% Input impedance 5 k Ω to IN 750 Ω 4.1 kΩ Input current 5 mA Typical 24 VDC Internal circuit...
  • Page 137 Appendix B Specifications DC Inputs I4 (Ia) and I5 (Ib) (V1 CPU Units) Item Specifications Circuit drawing Input voltage 24 VDC +10%, –15% Analog inputs 5 k Ω output Input imped- to IN device 150 kΩ 27 kΩ ance 4 kΩ 0.01 µF Input current 5 mA, Typical...
  • Page 138 Appendix B Specifications DC Inputs I4 (Ia) and I5 (Ib) (Not Isolated) (Pre-V1 CPU Units) Item Specifications Circuit drawing Input voltage 24 VDC +10%, –15% Analog inputs 5 k Ω output Input imped- device 150 kΩ ance Internal 2.4 kΩ 0.01 µF circuit Input current...
  • Page 139 5 ms max. Q5/Q7 The life, under the worst conditions, of the output contacts used in ZEN relay outputs is given in the above table. Guidelines for the normal life of the relays is shown in the fol- lowing diagram.
  • Page 140 Appendix B Specifications Usage: 360 times/hour 1,000 250 VAC resistive load 24 VDC resistive load/250 VAC inductive load 24 VDC inductive load (1.7 ms) Contact current (A) Transistor Output Type (CPU Unit/Expansion I/O Units) Item Specifications Circuit drawing Max. switching capacity 20.4 to 26.4 VDC Each circuit is made up of an indepen- 500 mA dent common circuit.
  • Page 141 Appendix B Specifications External Dimensions • Dimensions with the Battery Unit Mounted • CPU Units with 10 I/O Points (LCD and LED Types) 87.5 17.5 • CPU Units with 20 I/O Points (LCD and LED Types) 122.5 112.5 I 6 I 7 I 9 I a 20C1AR-A-V1 •...
  • Page 142 Appendix B Specifications • Expansion I/O Units (4-input/4-output/8 I/O) • Unit Mounting Hole Dimensions (Same for All Units) 90 80 Units: mm...
  • Page 143 Appendix B Specifications...

  • Page 144: Ladder Program Execution

    Executing Ladder Programs ZEN executes up to 96 lines of a ladder program in one cycle from first to last line. Start- ing from the first line of the bus bar, the ZEN repeatedly executes each line from left to right.
  • Page 145 Ladder Program Execution Ladder Program Execution Time Refer to the following table for ZEN execution times. The execution times are provided as a guide. External factors, button operations, execution of ZEN Support Software oper- ations, and timing of the processing affects the actual processing times. The cycle time is the sum of the common processing time, the processing time taken when Expansion I/ O Units are connected, and the ladder program execution time.

  • Page 146: Application Examples

    Appendix D Application Examples Lighting Pattern Control Application The ZEN can help conserve energy if the lighting patterns required for offices and similar environments are set to the ZEN. Use the switch operation to switch between lighting patterns. Operation Switch...
  • Page 147 (Weekly Timer, OFF Delay Timer) Application The ZEN can be simply used to conserve energy for an escalator with an automatic operation function. The escalator can be set to operate continuously from 7:00 to 10:00 and 17:00 to 22:00 weekdays and then operate at other times and on weekends only when people step on the escalator.
  • Page 148 Appendix D Application Examples Program Example I1 Operates I2 Stops Escalator operates I0 Person detected Off delay timer starts Operates 3 minutes after detection of person. Parameter Settings Weekly timer @0 Weekly timer @1 OFF delay timer T0 (Mon to Fri: 7:00 to 10:00) (Mon to Fri: 17:00 to 22:00) Water Supply Tank Control Application...
  • Page 149 Appendix D Application Examples System Configuration (200 VAC) R S T 61F-GP-N 61F-GP-N 61F-GP-N (For lower limit) (For half-full) (For upper ZEN- 10C@AR-A Upper limit 3G3FV Inverter Stop Low speed Half-full Intermediate Water storage tank speed Lower- limit High speed...
  • Page 150 Timer) Application The ZEN can be used to control circulation intermittently at set times. This circulates the carbon dioxide and warm air around plants in a greenhouse. In this example, two circulation fans are operated at set intervals. The starting current is kept to a minimum and, as a result, the circulation fans are set to start operating at differ- ent times.
  • Page 151 Greenhouse Air Circulation Control (2/3) (Calendar Timer and Weekly Timer) Application The ZEN can be used to operate circulation fans during winter nights only. In this example, the circulation fans operate only at night (19:00 to 6:00) during winter (November 15 to March 20).
  • Page 152 Appendix D Application Examples System Configuration (200 VAC) R S T SW1 (I0) (Operate) SW2 (I1) (Stop) ZEN- 10C1AR-A MC1 (Q0) MC2 (Q1) Circulation fan Circulation fan Program Example I0 Operates I1 Stops Fan 1 starts Startup time offset timer...
  • Page 153 Greenhouse Air Circulation Control (3/3) (Analog Comparator) Application The ZEN can be used to start the circulation fans once the temperature has reached a set level. A low startup current would result from a difference in the fan startup times. System Configuration...
  • Page 154 Annunciator (Flashing Pulse Timer) Application The ZEN can be used to make an alarm light flash when errors occur. In this example, a flashing pulse timer is used to make an alarm light flash when errors occur. Ladder programs can be created easily when a flashing pulse timer is used.
  • Page 155 Timer) Application The ZEN can be used to change the operating time of a machine, such as a coin-oper- ated car wash, depending on the number of coins inserted. If a holding timer is used and holding bits used for the self-holding bits, the remaining time will not be reset if there are unexpected power interruptions.
  • Page 156 Appendix D Application Examples System Configuration Coin selector 3 min 9 min ZEN- 10C@AR-A Carwash operation Program Example Carwash drive output Holding Insertion of 1st coin timer startup detected Self-holding for 1st coin cleared Self-holding for 2nd coin cleared Insertion of...
  • Page 157 Warming Moulding Machines (Weekly Timer and Bit Logic) Application The ZEN can be used to improve moulding efficiency by warming up the molding machine before the work shift starts. This allows molding work to begin immediately at the start of the work shift.
  • Page 158 Appendix D Application Examples Program Example Pattern 1 Stops selected Operates Switches Pattern 2 operation selected pattern Pattern 3 selected Parameter Settings Weekly Timer Setting @0 to @2...

  • Page 160: Allocations And Setting Sheets

    Appendix E Allocations and Setting Sheets I/O Allocations for CPU Units with 10 I/O Points Unit name Input device Input IN filter Input CPU Unit AC DCV bits Normal input AC DCV Analog voltage input Normal input Analog voltage input Expansion I/ AC DCV O Unit...
  • Page 161 Appendix E Allocations and Setting Sheets I/O Allocations for CPU Units with 20 I/O Points Unit name Input device Input IN filter Input CPU Unit AC DCV bits Normal input AC DCV Analog voltage input Normal input Analog voltage input Expansion I/ AC DCV O Unit...
  • Page 162 Appendix E Allocations and Setting Sheets Unit name Output device name and specifications Output CPU Unit AC DC V A bits AC DC V A AC DC V A AC DC V A AC DC V A AC DC V A AC DC V A AC DC V A Expansion I/...
  • Page 163 Appendix E Allocations and Setting Sheets Work and Holding Bit Allocations Bit type Address Application Bit type Address Application Work bits Holding bits Timer and Holding Timer Settings Timer Address Operation Setting time Set time Application setting(See units note.) Timer O F H:M M:S S O F H:M M:S S O F H:M M:S S...
  • Page 164 Appendix E Allocations and Setting Sheets Counter Settings Counter Setting (No. of Application address times) Incrementing: Decrementing: Reset: Incrementing: Decrementing: Reset: Incrementing: Decrementing: Reset: Incrementing: Decrementing: Reset: Incrementing: Decrementing: Reset: Incrementing: Decrementing: Reset: Incrementing: Decrementing: Reset: Incrementing: Decrementing: Reset: Incrementing: Decrementing: Reset: Incrementing:...
  • Page 165 Appendix E Allocations and Setting Sheets Weekly Timer Settings Weekly Start day Stop day Start Stop Application timer time time address SU MO TU WE TH FR SA SU MO TU WE TH FR SA None SU MO TU WE TH FR SA SU MO TU WE TH FR SA None SU MO TU WE TH FR SA SU MO TU WE TH FR SA None...
  • Page 166 Appendix E Allocations and Setting Sheets Comparator Settings Compar- Comparison data 1 Operator Comparison data 2 ator Type Content Type Content Constant address ≤ ≥ T@ #@ T@ #@ ≤ ≥ T@ #@ T@ #@ ≤ ≥ T@ #@ T@ #@ ≤...
  • Page 167 Appendix E Allocations and Setting Sheets...

  • Page 168: Index

    Index counters addresses additional functions for bit outputs comparing values allocations using allocation sheets CPU Units I/O allocations available models alternate operation overview analog I/O specifications application examples available models date setting dimensions backlight DIN track changing automatic cutout time mounting Battery Unit display bits...
  • Page 169 Index backup memory areas holding timers Memory Cassettes I/O bits mounting allocation transferring programs inductive loads MONITOR input devices mounting connecting Battery Units inputs analog changing deleting node addresses input bits setting input filter OFF delay timer stabilizing input operations ON delay timer wiring input lines one-shot pulse timer...
  • Page 170 Index calendar timers comparing present values reset input counters reset operation display bits screen timers and holding timers adjusting LCD screen contrast weekly timers set operation part names settings password setting sheets deleting specifications setting general photoelectric switches input preventing false inputs output power cables summertime...
  • Page 171 Index...

  • Page 172: Revision History

    Revision History A manual revision code appears as a suffix to the catalog number on the front cover of the manual. Cat. No. W385-E1-04 Revision code The following table outlines the changes made to the manual during each revision. Page numbers refer to the previous version.
  • Page 173 Wegalaan 67-69, NL-2132 JD Hoofddorp The Netherlands Tel: (31)2356-81-300/Fax: (31)2356-81-388 OMRON ELECTRONICS LLC 1 East Commerce Drive, Schaumburg, IL 60173 U.S.A. Tel: (1)847-843-7900/Fax: (1)847-843-8568 OMRON ASIA PACIFIC PTE. LTD. 83 Clemenceau Avenue, #11-01, UE Square, Singapore 239920 Tel: (65)6835-3011/Fax: (65)6835-2711...
  • Page 174 Authorized Distributor: Cat. No. W385-E1-04 Note: Specifications subject to change without notice. Printed in Japan...

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