Digital Display (25 mm) M7E CSM_M7E_25mm_DS_E_4_2 Zero Suppression Incorporated • Single-color (red or green) and two-color (red or green selectable) displays with a character height of 25 mm are available for a variety of applications and locations. • Miniature design with a 43-mm depth is perfect for saving space in equipment and devices. • A wide power supply range from 12 to 24 VDC. • Connectors are available, which allows easy maintenance. • Negative logic input. Model Configuration ■ Unit Configuration Unit Display Unit Displays units with text and symbols (see face plates) with a surfacelighting LED. Connector Facilitates maintenance and inspection. Available as a soldered terminal type and PCB type. Decimal Display Unit Displays 0, 1, 2, .. 9 (with a character height of 25.4 mm), and . (decimal point) in red or green or red and green (selectable). End Plate (Right) End Plate (Left) Used for panel mounting. Right and left plates form a pair (available as set only). Black or light gray. 1 M7E Ordering Information ■ List of Models Display contents Decimal Display color Type Red Negative ■ Accessories (Order Separately) Model M7E-02DRN2 End Plate Green (See note 1.) M7E-02DGN2 Red/green (two colors) (See note 1.) Unit Red --- Case color Model Light gray M7E-022M M7E-02DRGN2 Black M7E-022M-1 M7E-02UR2-@ (See note 2.) Note: The Right and Left Plates form a pair. Connector Green --- M7E-02UG2-@ (See note 2.) Note: 1. The M7E-02DGN2 (single-color (green) model) is different from the M7E02DRGN2 (two-color (red and green) model) in displayed tone. 2. The symbol in the box (@) expresses the code for the display contents. Refer to page 6. Terminal Model Solder terminals NRT-C Solder terminals NRT-CN PCB terminals NRT-CP Connectable PLCs M7E model Display contents PLC's output method Type Static output PNP output Dynamic output NPN output Decimal Negative Not connectable Connectable Unit --- Connectable (only voltage imposed) Not connectable Specifications ■ Ratings ■ Characteristics Rated power supply Wide range from 12 to 24 VDC Allowable voltage fluctuation range 90% to 110% of rated voltage Current consumption (per display) Red LED: Input level Negative logic Insulation resistance 100 MΩ min. (at 500 VDC) between each terminal and mounting panel Dielectric strength 500 VAC, 50/60 Hz for 1 min between each terminal and mounting panel Noise immunity (See note 2.) Power terminal: ±500 V Input terminals: ±500 V (normal mode) ±1,500 V (common mode) High: 4 V to power supply voltage Low: 0 to 1.5 V Vibration resistance Destruction: 10 to 55 Hz, 0.75-mm double amplitude Ambient temperature Operating: −10 to 55°C (with no icing) Storage: −25 to 70°C (with no icing) Shock resistance Destruction: 300 m/s2 Degree of protection IEC IP40 (portion on panel surface) Ambient humidity Operating: 35% to 85% (with no condensation) Compatible connector OMRON NRT-C/NRT-CN/NRT-CP 60 mA max. (at 24 VDC) 100 mA max. (at 12 VDC) Green LED: 80 mA max. (at 24 VDC) 140 mA max. (at 12 VDC) Note: 1. Initial values 2. Impulse conditions: Rise time: 1 ns +10% max. Pulse width: 100 ns, 1 μs Polarity: Positive, negative, asynchronous to power frequency, 100-Hz repeat frequency. 2 M7E Installation ■ Block Diagram ■ Terminal Arrangement/Functions Terminal Arrangement Note: Circled numbers are the connector pin numbers. Note: Values in parentheses apply to the NRT-@ Connector's pin numbers. Unit Display Unit Decimal Display Unit Power supply input Power supply (+) Switching regulator 0V LED display elements Power supply input (+) Zero suppress output Zero suppress input Input circuit/ driver circuit Signal inputs NRT-@ Connector pin No. Power supply 0 V Zero blanking circuit Data input Decimal point input Control input (latch input) Control input (color selection input) (See note.) Power supply input 0 V Note: The R/G terminal is only for two-color models. It is NC on the single-color models. Terminal Functions Terminal symbol Signal Input Circuit Name Function Negative Logic Standard Model V Power supply Positive (+) power-supply terminal. RBO Control output RBI Control input Turns OFF when the input is low while the decimal point is not lit and the contents of display is 0. A B C D Data inputs Low is output during zero blanking. A (20) B (21) C (22) D (23) +5 V 1.8 kΩ • Displays a digit or symbol corresponding to the value of the binary code signal. • Decimal display uses 0 to 9; nothing will be displayed for higher values. DP Data input LE Control input Latch input: The immediately preceding display condition is retained. R/G Control input Set low for green display and high for red display. (See note.) G Power supply 0-V power-supply (ground) input terminal (GND). 20 kΩ Signal input Custom IC GND The decimal point lights. Operates independently from the LE terminal. Note: Only for the M7E-02DRGN2. ■ Input Codes Operation Examples of RBI and RBO Zero suppression functions and RBO is low when the display is 0, the decimal point is not lit, and RBI is low. Example 1: Zero blanking is not required and the RBI input and RBO output of each digit are open. Fourth digit Third digit Second digit First digit Example 1 Example 2: Wired as shown when there is zero blanking. If the data of the rightmost digit is 0, 0 will be displayed. Example 2 Example 3: Zero blanking is valid for only the digits on the left of the lit digit and decimal point. Example 4: Zero blanking is valid for the second digit and the following digits that are on the right of the lit digit and decimal point. If the first- to fourth-digit values are all 0 and the decimal point is lit with the fourth digit, 0. 0@@ will be displayed. (There is no data in @@.) Example 3 Note: Use RBO output for the connection with RBI input only. Example 4 3 M7E Negative Logic Unit • The display color will be green if the color control input of terminal 2 is set low and red if it is set high. • All inputs are pulled up internally. Therefore high can be open. Input signal Output Connector pin No. C E F G H D Terminal symbol LE D C B A DP RBI H H H H H H H H H H H H H H H H L H H H H L H H H H H L L H H L H H H L H H H Input signals I Output display condition J RBO Decimal L L Blank H H 0 *1 H 1 *1 H 2 H *1 H 3 H H *1 H 4 H L H *1 H 5 L L H H *1 H 6 H L L L H *1 H 7 H L H H H H *1 H 8 H L H H L H *1 H 9 H L H L H H *1 H - H L H L L H *1 H Blank H L L H H H *1 H Blank H L L H L H *1 H Blank H L L L H H *1 H Blank H L L L L H *1 H Blank * * * * * L *1 H H H H H H L *1 H 0 L *1 *1 *1 *1 *1 *1 H Retains the display conditions of A to D terminals before LE goes low. DP is not related. *2 *3 *2 *1 Either low or high. *2 Even if the data input is 0 and RBI is low, "0." will be displayed if DP is low. *3 Indicates the minus symbol (-) on the 7-segment display. ■ External Connections Refer to the Block Diagram on page 3 and Terminal Arrangement/Functions on page 3 before performing external connections for each Unit. PLC Connections Refer to your PLC operation manual before connecting the PLC. M7E-02D@N2 Negative Logic Models Use an NPN Transistor Output Unit for the PLC Output Unit. Connected to C500-OD213 Transistor Output Unit PLC A to D OUT00 DP, LE to OUT15 PLC Output Unit (NPN transistor output) 4 M7E Operation ■ Operation Timing (Input Signal Timing) Negative Logic Data input signals A to D ts Latching input LE th H Data latch Data read Data latch L tw Pulse duration (tw) 1.5 ms min. Hold time (th) 0.75 ms min. Setup time (ts) 2.25 ms min. tw: Pulse duration th: Hold time ts: Setup time ■ Operation Chart The following example shows the relationship between each input terminal and the display condition. Data 0 1 2 3 4 5 6 7 8 Description 9 Terminal displayed value Input A signals (20) Inputs the data signal as BCD (or binary code) H L B (21) H L C (22) H L D (23) H L DP Low when the decimal point lights. The decimal point can light without regard to the LE signal. H L LE Low when all the display is to be retained. (High is maintained until the signal goes low.) H L Display condition Remarks --- The "1" display is retained by the LE signal. The "5" display is retained by the LE signal. --- 5 M7E Dimensions Note: All units are in millimeters unless otherwise indicated. M7E-02@N2 30 30 30 3 6 48 Panel Cutout 43 33.5 A 6 (53.2) 0 45−0.4 44 B Panel thickness: 1 to 3 mm LED 7° (Unit: mm) Number of Dimension A Dimension B Units (n) (n x 30 + 12) (n x 30 +10) 25.4 4.5 7 1 30 4.5 B−1 14.7 1 42±0.4 40±0.4 2 72±0.4 70±0.4 3 102±0.4 100±0.4 4 132±0.4 130±0.4 5 162±0.8 160±0.8 6 192±0.8 190±0.8 7 222±0.8 220±0.8 8 252±0.8 250±0.8 Note: 1. Dimensions A and B include End Plates. 2. Tolerance is ±0.4 mm unless otherwise specified. ■ Accessories (Order Separately) End Plate M7E-022M(-1) Left End (53.2) 48 Right End 5.8 (53.2) 48 5.8 33.5 33.5 4 44 44 4.5 (4.3) 4.5 4.5 (4.3) Face Plate • A face plate is used with the Unit Display Unit, which incorporates a surface-lighting LED. • The following face plates are available. • Custom face plates can be made. Refer to the following for the procedure. Symbol Display contents A B C F G H J JC1 K V Z1 Blank display Character Dimensions (Unit: mm) Height - 10.5 14.0 18.0 10.5 10.5 10.5 18.6 14.0 14.0 14.0 Width - 18.0 13.0 13.0 17.5 16.0 10.8 17.2 14.0 15.0 14.0 Example of Dimensions B Height 10.5 Width 18.0 6 M7E Safety Precautions ■ Precautions for Correct Use Display Unit Refer to Safety Precautions for M7E. Procedure for Making Face Plates for M7E-02 Unit Display Unit Custom face plates can be made according to the following guidelines. 1. Prepare a blank Unit Display Unit (M7E-02UR2-A or M7E02UG2-A) for the desired lighting color. 2. Take transparent polyester film (with thickness equivalent to 0.188) and cut it to the following dimensions. 2 0 45.9 −0.3 15 Face Plate Dimensions Character display range Face Plate Dimensions 0 27.6 −0.3 18 Character display range 3. Print solid black on the film covering all area except the character and so that the desired unit character is within the character display range (with the unit character transparent). 4. Install the completed face plate into the Unit Display Unit. Face plate now completed (not included with the M7E-02U@2-A) Diffusion film Surface-lighting LED (red) Filter ALL DIMENSIONS SHOWN ARE IN MILLIMETERS. To convert millimeters into inches, multiply by 0.03937. To convert grams into ounces, multiply by 0.03527. 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