Definition of the bits

TM-5-3895-374-24-1 Paving Machine Bituminous Material: Crawler Mounted Diesel Engine Driven Manual
Page Navigation
255

TM 5-3895-374-24-1 Serial link List of ATV-45 2 Definition of the bits variables BIT NAME DESCRIPTION BO TST Tripping of safety relay B1 RST’ Resetting of speed controller B2 CLO’ Assigning of LOCAL commands B3 CLI’ Assigning of LINE commands 84 NTO Cancellation of communication control Commands (read and write) B5 RUN Run / stop command B6 REV Frequency reference sign B7 DCB DC braking command 88 CAL Freewheel stop command B9 CAR Fast stop command B10 RTM Motor voltage reduction command * These bits cause the action given when written at 1 They are reset to zero by the speed controller Writing them at 0 has, therefore, no effect and they will always read 0. TST (BO) Causes the ATV-45 2’s safety relay to open, and as a result, the switching off of the controller, If the relay contact Is used to maintain the line contractor. RST (B1) Causes fault acceptance and resetting of the ATV-45 2 safety relay only If the fault could be corrected and has disappeared. CLO (B2) Puts the ATV-45 2 in LOCAL mode, this can only be controlled from Its terminal (logic and analogue inputs). CLI (B3) Puts the ATV-45 2 in LINE, this waits for its commands from the serial link. NTO (84) When the speed controller is In LINE mode exchange monitoring is carried out permanently, If the ATV 45 2 does not receive at least one character every second, the SLF fault will appear. The setting to state 1 of bit B4 cancels this control This possibility is reserved for fine adjustment phases and Is not recommended during operation for safety reasons. RUN (B5) 1 = run, 0 = stop. REV (B6) Frequency reference signal 0 = positive, 1 = negative. Reversing the rotation direction can be achieved by changing the bit state. or by supplying an opposite frequency reference sign in word W19. DCB (B7) Brake control by positioning the bit at 1 Has priority over RUN bit. CAL (B8) Freewheel stop control as soon as the bit Is set to 1 Has priority over RUN bit. CAR (B9) Fast stop control (deceleration ramp divided by 4) Has priority over RUN and CAL bit. (page 3-268)

Privacy Statement
Press Release
Contact