Siemens SINAMICS CU240S DP-F Operating Instructions Manual page 151

Table 6-30
Parameter
P2041.01
P2041.03
Process data monitoring
Two parameters determine how process data are monitored:
● Process data monitoring function on the PROFIBUS DP interface (standard slave
● Monitoring of the telegram failure time in the converter with parameter P2040
F0070 is activated if no new setpoints are received by the PROFIBUS DP interface within
the telegram failure period.
CAUTION
Shutdown on faults can only take place if both monitoring functions are activated!
When the PROFIBUS DP interface is in operation, parameter P2040 should also be set to a
value of > 0. The process data monitoring function is thus activated/deactivated solely using
the PROFIBUS process data monitoring function. The monitoring time then corresponds to
the process data monitoring time setting plus the time set in P2040.
Note
Process data whose complete control word (PZD1) is set to zero are not transferred from the
PROFIBUS DP interface to the inverter.
Result: Alarm A0703 and possibly fault F0070.
Control Units CU240S
Operating Instructions, 07/2008 - FW 3.2, A5E00766042B AD
PROFIBUS DP functions
Meaning
OP parameter in EEPROM:
Modifications to parameter settings
via SIMATIC HMI are stored
permanently in the EEPROM or as
volatile data in the RAM.
Select displayed diagnostics
screen.
function according to PROFIBUS)
The process data monitoring function on the PROFIBUS DP interface is normally
activated. It can be deactivated by means of the PROFIBUS master configuring tool.
Parameter P2040 defines the time after which a fault will be generated (F0070) if no
telegram is received through the PROFIBUS DP interface.
– P2040 = 0 means: No monitoring
– P2040 > 0 means: The time in milliseconds after which a fault condition will be
generated if a setpoint telegram has not been received.
CAUTION
The process data monitoring function should not be deactivated! If the monitoring
function is deactivated, the inverter will not recognize a PROFIBUS DP
communication failure and continue to operate with possibly wrong commands and
setpoints.
6.4 Communication via PROFIBUS
Value range
0: Permanent (EEPROM)
1: Volatile (RAM)
0: Standard diagnostics
Communication
151