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EXTWD Parameter (S300-S700)

ASCII - Command EXTWD    
Syntax Transmit EXTWD [Data]    
Syntax Receive EXTWD <Data>   Available in  
Type Variable rw   MMI Yes
ASCII Format Integer32   CANBus Object Number 353A (hex)
DIM ms   PROFIBUS PNU 1658 (dec) IND = 1 (dec)
Range 1 .. 32000   DPR 58 (dec)
Default 100    
Opmode All   Data Type Bus/DPR Integer32
Drive State Disabled + Reset (Coldstart)   Weighting  
Start Firmware 1.0    
Configuration Yes   Last Change of this Object 1.0
Function Group fieldbus   EEPROM Yes
Short Description External Watch Dog (Fieldbus)


The EXTWD parameter can be used to define the monitoring time (watchdog timer) for the fieldbus/slot communication. The monitoring is only active if the EXTWD parameter has a value greater than zero (EXTWD=0 means monitoring is switched off) and the output stage is enabled. If the preset time runs out, without the timer being retriggered, then the warning n04 (threshold monitoring) is generated and the drive is stopped. The amplifier remains ready for operation, and the output stage is still enabled. This warning must be cancelled (function CLRFAULT or INxMODE=14) before a new motion command (setpoint) can be accepted.
For DeviceNet, set to 1 to enable F04 and 0 to disable. (Watchdog time is set by DeviceNet controller.)