Schneider Electric 61 User Manual

51

 

The Altivar 61 drive incorporates communication monitoring mechanisms.

Following initialization (power-up), the drive waits until at least one command or reference parameter has been written for the first time by 
the network.

Then, the network is monitored and if a network fault occurs, the drive reacts according to the configuration (ignore fault, stop on drive fault, 
speed maintenance, fallback speed, or stop without fault).

The drive can start only once all the command and reference parameters of the active network have been written.

The network is monitored in accordance with protocol-specific criteria, which are summarized in the table below and specified in the 
corresponding protocol manual.

(1)  If the drive is configured to trip on a fault in the event of a network fault.

If an anomaly is detected, the port or network card indicates a network fault.

• Adjustable time-out for received requests destined for the drive

 

(SLF1)

• Bus  Off
• Life Guarding
• CANoverrun
• Heartbeat
• NMT state machine transition

 

(COF)

Network management fault:
• FDR fault
• IP address duplication fault

 

(EPF2)

Communication fault:
• Adjustable time-out for received control word (I/O scanning or 

messaging)

• Network overload

 

(CnF)

• Non-adjustable time-out for received periodic variables destined for 

the drive

• Adjustable time-out:

• Either for received periodic variables (Peer cop) destined for the 

drive

• Or for Modbus messages destined for the drive, if no periodic 

variables (Peer cop) configured

• Fixed time-out (10 s) for received requests destined for the drive

• Fixed time-out (10 s) for master polling

• Adjustable time-out (via the network configuration software) for 

received periodic variables (PZD and PKW) destined for the drive

• Time-out for received periodic variables destined for the drive

Communication fault:
• Adjustable time-out:

• Either for received periodic variables (Polling and COS) 

destined for the drive

• Or for network activity, if no periodic variables configured

Configuration fault:
• The drive configuration is incompatible with the selected assembly 

devices

 

(EPF2)