Siemens SINUMERIK 840D sl Series Diagnostics Manual page 676

Overview of Alarms
Cause: When initializing the terminal modules, the terminals of the control unit or the terminal
board 30, an internal software error has occurred.
Fault value (r0949, decimal):
The thousands location = 1 ... 3:
The component number (p0151) of the module involved is specified at the ones, tens and
hundreds position.
Remedy: - power-down the power supply for the control unit and power-up again.
- check the DRIVE-CLiQ connection.
- if required, replace the terminal module.
The terminal module should be directly connected to a DRIVE-CLiQ socket of the control
unit.
If the fault occurs again, replace the terminal module.
203505 <location>TM: Analog input, wire breakage
Reaction: OFF1 (OFF2)
Acknowledge: IMMEDIATELY (POWER ON)
Cause: The input current of the TM analog input has exceeded the threshold value parameterized
in p4061[x].
This fault can only occur, if p4056[x] = 3 (4 ... 20 mA with monitoring) is set.
Index x = 0: Analog input 0 (X522.1 to .3)
Index x = 1: Analog input 1 (X522.4 to .5)
Fault value (r0949, decimal):
The component number (p0151) of the module involved is specified at the ones, tens and
hundreds position.
The thousands position specifies the analog input involved: 0: Analog input 0 (AI 0), 1:
Analog input 1 (AI 1)
Remedy: Check the connection to the signal source for interruptions.
Check the magnitude of the impressed current - it is possible that the impressed signal is
too low.
Please note that the input has a load resistor of 250 Ohm.
The input current measured by the TM can be read-out of r4052[x].
203550 <location>TM: Speed setpoint filter natural frequency > Shannon
frequency
Reaction: NONE
Acknowledge: NONE
Cause: The natural filter frequency of the speed setpoint filter (p1417) is greater than the Shannon
frequency.
The Shannon frequency is calculated according to the following formula: 0.5 / p0115[0]
See also: p1417
Remedy: Reduce the natural frequency of the speed setpoint filter (PT2 low pass) (p1417).
203590 <location>TM: Module not ready
Reaction: A_INFEED: OFF2 (NONE)
SERVO: NONE (DCBRAKE, ENCODER, OFF1, OFF2, OFF3, STOP1, STOP2)
Acknowledge: IMMEDIATELY (POWER ON)
Cause: The terminal module involved does not send a ready signal and no valid cyclic data.
Fault value (r0949, decimal):
Drive object number.
Remedy: - check the 24 V power supply.
- check the DRIVE-CLiQ connection.
205000 <location>Power module: Overtemperature heatsink
Reaction: NONE
Acknowledge: NONE
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SINUMERIK 840D sl/840D/840Di/810D Diagnostics Guide (DA), 08/2005 Edition
© Siemens AG, 2005. All rights reserved
08/2005