TECHNICAL BULLETIN
Contents
1. 1H to Two point setting powering off and then on the CPU Un G40 module f Turn off on and then off Two point b Turn on Two point calibration mode setting request Y7 switch request YA g Check that the conversion range is not c Set User setting 1H to Two point exceeded calibration method setting Un G41 h Turn off Two point calibration mode switch request YA End Perform two point calibration again d Write the default two point setting value and the default two point calibration value to the corresponding buffer memories 2 Details of each step The following describes the details of steps a to h in 1 Setting procedure a Restart the system by resetting or powering off and then on the CPU module The error code 1 cannot be cleared by turning on Error clear request YF To clear it reset or power off and then on the CPU module b Turn on Two point calibration mode switch request YA After restarting the system turn on Two point calibration mode switch request YA while Conversion disable 1H is set to Conversion enable disable setting Un G0 The error code 1 may be detected when an incorrect value is set to Two point setting value Un G50 to Un G54 Un G56 to Un G60 Un G62 to Un G71 or Two point calibration value Un G80 to Un G87 while Conversion enable 0H is set to Conversion enable disable setting Un GO in normal mode When the module enters two point ca2. to Two point span calibration value Un G86 Un G87 e Set Write 1H to Two point setting Un G40 Set Write 1H to Two point setting Un G40 f Turn off on and then off Two point setting request Y7 Turn off on and then off Two point setting request Y7 Changes made to Two point setting value Un G50 to Un G54 Un G56 to Un G60 Un G62 to Un G71 and Two point calibration value Un G80 to Un G87 become valid g Check that the conversion range is not exceeded To check that the newly set value does not exceed the conversion range of the analog input load cell output set Conversion enable 0H to Conversion enable disable setting Un GO and turn off on and then off Operating condition setting request Y9 Conversion processing will start Turn on Error clear request YF and check that Excess of conversion 1 is not stored in the bit 3 of Input signal error detection flag Un G1 14 If Excess of conversion 1 is stored the error may not be due to incorrect setting Check that the cables are not disconnected and correctly wired and a voltage across the input terminals between SIG and SIG terminals does not significantly exceed 15mV h Turn off Two point calibration mode switch request YA Turn off Two point calibration mode switch request YA to return the two point calibration mode to normal mode When the module enters normal mode the signals and LED change to the following status e Two point calibratio
3. TECHNICAL BULLETIN Issue No FA A 0085 Page 1 4 Title Method for recovering from an error error code 1 of the MELSEC Q series load cell input module Date of Issue June 2010 Relevant Models Q61LD Thank you for your continued support of Mitsubishi programmable controllers MELSEC Q series This bulletin describes the method for recovering from an error error code 1 of the Q61LD NO Re p 1 The following shows the relevant Q61LD models e Production information The first 5 digits is 12031 or earlier The first 5 digits is 12032 or later is inapplicable e Product information The first 5 digits is 11031 The first 5 digits is 12011 or later is inapplicable The production information can be checked on the rating plate on the module side The product information can be checked in the System Monitor screen of a programming tool For details on the check methods refer to the Q61LD Load Cell Input Module User s Manual SH NA 080821ENG Contents Causes of the error code Tivoi cenbtitvachia orn me ene mena te tint nGntinite Galena atin tee in itekintte ie Utila s 1 Method for recovering from an error error code 1 eeeeesceessesesseseeseseeeeseeeseeccseeceseeseseesecseneeseeseseeaesecaeecseeeeseeseeeaereatees 2 Causes of the error code 1 The error code 1 hardware error in the module is detected when an analog input load cell output exceeds the conversion range or when hardware fails due to incor
4. libration mode the signals and LED enter the following status e Two point calibration mode status XA On e Module ready X0 Off e RUN LED Flashing aMITSUBISHI ELECTRIC CORPORATION HEAD OFFICE TOKYO BUILDING 2 7 3 MARUNOUCHI CHIYODA KU TOKYO 100 8310 JAPAN NAGOYA WORKS 1 14 YADA MINAMI 5 CHOME HIGASHI KU NAGOYA JAPAN TECHNICAL BULLETIN Issue No FA A 0085 Page 3 4 Title Method for recovering from an error error code 1 of the MELSEC Q series load cell input module Date of Issue June 2010 Relevant Models Q61LD c Set User setting 1H to Two point calibration method setting Un G41 Two point calibration value Un G80 to Un G87 can be directly changed by storing User setting 1H to Two point calibration method setting Un G41 Two point calibration value Un G80 to Un G87 cannot be directly changed when Automatic setting 0H has been set to Two point calibration method setting Un G41 d Write the default two point setting value and the default two point calibration value to the corresponding buffer memories Write the default values to Two point setting value Un G50 to Un G54 Un G56 to Un G60 Un G62 to Un G71 and Two point calibration value Un G80 to Un G87 Note the following e Write the value stored in 3 0mV V zero calibration value Un G1622 Un G1623 to Two point zero calibration value Un G84 Un G85 e Write the value stored in 3 0mV V span calibration value Un G1624 Un G1625
5. n mode status XA Off e Module ready X0 On e RUN LED On aMITSUBISHI ELECTRIC CORPORATION HEAD OFFICE TOKYO BUILDING 2 7 3 MARUNOUCHI CHIYODA KU TOKYO 100 8310 JAPAN NAGOYA WORKS 1 14 YADA MINAMI 5 CHOME HIGASHI KU NAGOYA JAPAN TECHNICAL BULLETIN Issue No FA A 0085 Page 4 4 Title Method for recovering from an error error code 1 of the MELSEC Q series load cell input module Date of Issue June 2010 Relevant Models Q61LD 3 Precautions If the usage or set value of the load cell is incorrect an error may occur again after the set value is changed or two point calibration is performed even if the system is recovered from an error error code 1 by the procedure shown in this chapter If the error code is detected again check the following e Specifications of the connected load cell e Two point setting value Un G50 to Un G54 Un G56 to Un G60 Un G62 to Un G71 e Two point calibration value Un G80 to Un G87 e Procedure for two point calibration aMITSUBISHI ELECTRIC CORPORATION HEAD OFFICE TOKYO BUILDING 2 7 3 MARUNOUCHI CHIYODA KU TOKYO 100 8310 JAPAN NAGOYA WORKS 1 14 YADA MINAMI 5 CHOME HIGASHI KU NAGOYA JAPAN
6. rect setting or incorrect wiring Cause Example KE The selected load cell input module model is Excessive analog input load cell output is being applied to the module not appropriate St Automatic calibration was performed with The gain value set inside the module is too great incorrect two point setting value Input between SIG and SIG terminals is open The cable is disconnected The hardware fails 2 Errors occurred by the No 1 or No 2 cause in the above table can be recovered by defaulting Two point setting value Un G50 to Un G54 Un G56 to Un G60 Un G62 to Un G71 and Two point calibration value Un G80 to Un G87 After defaulting the values check the specifications usage wiring and setting values of the load cell and perform two point setting and two point calibration again aMITSUBISHI ELECTRIC CORPORATION HEAD OFFICE TOKYO BUILDING 2 7 3 MARUNOUCHI CHIYODA KU TOKYO 100 8310 JAPAN NAGOYA WORKS 1 14 YADA MINAMI 5 CHOME HIGASHI KU NAGOYA JAPAN TECHNICAL BULLETIN Issue No FA A 0085 Page 2 4 Title Method for recovering from an error error code 1 of the MELSEC Q series load cell input module Date of Issue June 2010 Relevant Models Q61LD 2 Method for recovering from an error error code 1 1 Setting procedure The setting procedure is as shown below Start The error code 1 is detected a Restart the system by resetting or e Set Write
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