5.2 What to DO If Something Unusual Occurs(GT02/GT02L/GT05/GT12/GT32/GT32-E)Problem Cause SolutionScreen is blank 1) Power is not on. 1) Supply the power supply to unit as perspecifications.2) (When only lamp and message partsare configured to the base screen)Value of substitute reference devicevalue does not exist in substitute data.2) Check the address of the substitute referencedevice and the device values on the PLC side.Error code[ER****] appearsat the top right ofthe screenAn error has occurred in communicationbetween the GT and an external device(e.g. PLC).Refer to .Screen displays[No Screen data]There is no base screen data in the GT.(Appears even when GT configurationdata exists.)Transfer base screen data from GTWIN.Screen displays[Screen No.Error]1) Screen settings from the PLC, the GT’sswitch part or the auto-paging indicatean unregistered screen number.1) Create and register screen content or specifythe correct screen number.2) When bringing up the keyboard screenduring data input, an unregisteredkeyboard screen number was specified.2) Create and register keyboard screen or specifythe correct keyboard number.3) GT configuration data and keyboardscreen data exist in the GT, but there isno base screen data.3) Transfer base screen data from GTWIN.- 4) Press [ESC] button to return to the previousscreen.Screen displays[Memory is Full]The total capacity of transferred basescreen data exceeds the memory capacityof the GT.Delete part of the base screen data so that thecapacity doesn’t exceed the total capacity.Data capacity can be checked by going to [View(V)]→[Memory Usage Conditions] on GTWINmenu bar. When the data capacity is not over thelimit, invalid data could possibly be remaining inthe GT. When transferring data, do so afterdeleting the screen.An unspecifiedscreenappeared/thereis trouble whenswitchingscreens.1) The screen specification in the PLCscreen setting, the GT switch part orthe auto-paging is wrong.1) Specify the correct screen number.2) The startup screen is specified in theGT configuration settings (GTWIN).2) Check the start-up screen setting for the GTconfiguration settings in GTWIN. Deleteunnecessary settings and re-transferconfiguration data.3) An erroneous device or value isspecified in the first word of the basiccommunication area word device.3) Check the device content specified on the PLCside in the first word of the basiccommunication area. (Do not use the basiccommunication area with ladder programs.)Screen doesn’tswitch1) No screen number has been written tothe screen setting area (the first word inthe basic communication area worddevice) from the PLC.1) Specify correct screen number.2) The screen number to which you areattempting to switch has already beenwritten from the PLC to the screensetting area (the first word in the basiccommunication area word device.)2) Refer to Reference Manual.Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.ctiautomation.net - Email: info@ctiautomation.net
