Siemens CU240S DP-F - Service and maintenance; Service and support information; Faults and Alarms; LED Overview

Table of contents
Control Units CU240S
Operating Instructions, 11/2006, A5E00766042B AA
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8.1.1 Selection of command/setpoint source P0700 and P1000........................................................ 8-1
8.1.2 Using BICO technology.............................................................................................................. 8-3
8.2 Data Sets ................................................................................................................................... 8-6
8.3 Digital inputs (DI) ..................................................................................................................... 8-13
8.4 Digital outputs (DO) ................................................................................................................. 8-16
8.5 Analog inputs (A/D converter).................................................................................................. 8-18
8.6 Analog outputs (D/A converter)................................................................................................ 8-20
8.7 Communication via USS .......................................................................................................... 8-22
8.7.1 Structure of a USS telegram.................................................................................................... 8-24
8.7.2 User data area of USS telegram.............................................................................................. 8-26
8.7.3 Process data channel (PZD).................................................................................................... 8-27
8.7.4 Parameter data channel (PKW)............................................................................................... 8-28
8.7.5 Timeouts and other errors........................................................................................................ 8-34
8.8 Fixed frequencies..................................................................................................................... 8-37
8.9 2-/3-wire control ....................................................................................................................... 8-41
8.9.1 Siemens standard control (P0727 = 0) .................................................................................... 8-42
8.9.2 2-wire control (P0727 = 1) ....................................................................................................... 8-44
8.9.3 3-wire control (P0727 = 2) ....................................................................................................... 8-45
8.9.4 3-wire control (P0727 = 3) ....................................................................................................... 8-47
8.10 Motorized potentiometer (MOP)............................................................................................... 8-48
8.11 JOG.......................................................................................................................................... 8-50
8.12 PID Controller........................................................................................................................... 8-52
8.12.1 PID motorized potentiometer ................................................................................................... 8-54
8.12.2 PID fixed setpoint..................................................................................................................... 8-54
8.12.3 PID dancer roll control ............................................................................................................. 8-56
8.13 Setpoint channel ...................................................................................................................... 8-59
8.13.1 Summation and modification of frequency setpoint........
......................................................... 8-59
8.13.2 Ramp-function generator ......................................................................................................... 8-61
8.13.3 OFF/braking functions.............................................................................................................. 8-63
8.13.4 Manual and automatic operation.............................................................................................. 8-66
8.14 Free function blocks................................................................................................................. 8-69
8.15 Brake functions ........................................................................................................................ 8-74
8.15.1 Electro-mechanical brakes....................................................................................................... 8-74
8.15.1.1 Brake Control Relays ............................................................................................................... 8-75
8.15.1.2 Motor Holding Brake ................................................................................................................ 8-78
8.15.1.3 Instant brake ............................................................................................................................ 8-80
8.15.2 Electronic brakes (only with PM240) ....................................................................................... 8-82
8.15.2.1 DC braking ............................................................................................................................... 8-82
8.15.2.2 Compound braking................................................................................................................... 8-86
8.15.2.3 Dynamic braking ...................................................................................................................... 8-88
8.15.3 Regenerative braking (only with PM250)................................................................................. 8-92
8.16 Automatic restart...................................................................................................................... 8-93
8.17 Flying restart ............................................................................................................................ 8-96
8.18 Fail-safe functions.................................................................................................................... 8-99
8.18.1 Monitoring the fail-safe functions ........................................................................................... 8-101
8.18.2 Limiting values for SS1 and SLS ........................................................................................... 8-103