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Summary of Contents for Mitsubishi Melsec FX-4AD
- Page 1 (217) 352-9330 | Click HERE Find the Mitsubishi FX-48MR-ES/UL at our website:...
- Page 2 FX-4AD SPECIAL FUNCTION BLOCK USER'S GUIDE JY992D52601E This manual contains text, diagrams and explanations which will guide the reader in the correct installation and operation of the FX-4AD special function block and should be read and understood before attempting to install or use the unit. Further information can be found in the FX PROGRAMMING MANUAL and FX SERIES HARDWARE MANUAL.
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Page 3: External Dimensions
1.1 External dimensions weight : Approx 0.5kg (1.1 lbs) Dimensions:mm (inches) DC24V 35mm DC24V (1.38in.) M3.5 (0.14") DIN rail terminal mounting screws POWER slot READY (4.92") (5.51") OFFSET Mounting GAIN holes 5.5mm (0.27in.) Extension dia. cable and connector 63 (2.48") 10 (0.39") 73 (2.87") 95 (3.74") -
Page 4: Installation Notes And Usage
INSTALLATION NOTES AND USAGE 3.1 General specification Item Specification General specifications(excluding withstand voltage) Same as those for the FX base unit 3.2 Power supply specification Item Specification Analog circuits 24V DC +/- 10%, 50mA(External power supply from base unit) Digital circuits 5V DC, 30mA(Internal power supply from base unit) 3.3 Performance specifications Analog inputs... - Page 5 Analog inputs continued..Preset 0 (-10V to +10V) Preset 1 (+4mA to +20mA) Preset 2 (-20mA to +20mA) Digital Digital Digital Output Output +2047 Output +1750 +2000 +1600 +1000 -10.24V +1000 -10V -32mA -20mA +10V +20mA +32mA -1000 +10.235V -1600 -2000 -2048 Current...
- Page 6 3.4 Allocation of buffer memories (BFM) In buffer memory locations (BFMs) marked Contents with an "*" data can be written from the PC *# 0 Channel initialization Default = H0000 using the TO command. *# 1 Channel 1 Contains the number of samples (1 to 4096) to *# 2 Channel 2 be used for an averaged result.
- Page 7 (1) Channel Selection Channel initialization is made by a 4 character HEX number HOOOO in buffer memory BFM #0. The least significant character controls channel 1 and the 4 character controls channel 4. Setting of each character is as follows: O = 0: Preset range (-10V to +10V) O = 2: Preset range (-20mA to +20mA) O = 1: Preset range (+ 4mA to + 20 mA)
- Page 8 (4) Status information BFM #29 When any of b1 to b4 is ON. b 0:Error If any of b2 to b4 is ON,A/D conversion No error of all the channels is stopped Offset/Gain data in EEPROM is corrupted b 1:Offset/Gain error Offset/Gain data normal or adjustment error.
- Page 9 DEFINING GAIN AND OFFSET Gain Offset Digital 1000 Digital Offset value Gain value Analog Analog Gain determines the angle or slope of the calibration line, Offset is the 'Position' of the calibrated line, identified at a identified at a digital value of 1000. digital value of 0.
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Page 10: Example Program
EXAMPLE PROGRAM 5.1 Basic program In the following example channels CH1 and CH2 are used as voltage inputs. The FX-4AD block is connected at the position of special function block No.0. Averaging is set at 4 and data registers D0 and D1 of the PC receive the averaged digital data. - Page 11 5.2 Using gain and offset in a program The gain and offset of the FX-4AD can be adjusted using push-button switches on the input terminal of the PC. It can also be adjusted using software settings sent from the PC. Only the gain and offset values in the memory of the FX-4AD need be adjusted.
- Page 12 DIAGNOSTICS 6.1 Preliminary checks Check whether the input wiring and/or expansion cables are properly connected on FX-4AD analog special function block. Check that the FX system configuration rules have not been broken, i.e. the number of blocks does not exceed 8 and the total system I/O is equal or less than 256 I/O. Ensure that the correct operating range has been selected for the application.
- Page 13 If in doubt about the operation or use of the FX-4AD please consult the nearest Mitsubishi Electric distributor. Under no circumstances will Mitsubishi Electric be liable or responsible for any consequential damage that may arise as a result of the installation or use of this equipment.
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