Schneider Electric 61 Manual De Usuario

 

54

• A communication channel is enabled if all its parameters assigned to drive functions have been received.

- Example:

 

A drive is in I/O profile with speed control. Modbus constitutes both the command and reference channel.

 

The Modbus channel will be enabled as soon as the control word and speed reference have been received.

• The drive is only able to start if all participant channels are enabled.

- Example 1:

 

A drive in CiA402 profile is connected to Modbus, which is the active channel.

 

Unless the reference has been written at least once, it will not be possible to proceed to "5 - Operation enabled" state, even if the 
"4 - Enable operation" command is sent.

- Example 2:

 

A drive is connected to Modbus.

 

The terminals are both the reference and command channel.

 

The operation on reference function

 

(OAI-)

 is active and summing input 2 is assigned to Modbus.

 

The drive will not start until the reference has been supplied by Modbus.

- Example 3:

 

A drive is configured for switching between the terminals and CANopen.

 

If the command switch is assigned to the Ethernet card, start-up is only possible once the Ethernet channel is enabled.

• A communication problem disables a communication channel.

• When switching from an enabled channel to a disabled channel, the drive immediately triggers a network fault.

• The Ethernet card can generate 2 types of network fault: Network management fault and communication fault.
• If a network management fault (IP address duplication or FDR fault) occurs, a drive fault is generated regardless of the state (active, 

participant, etc.) of this channel.

4

1

2

=1
7

6

5

3

Channel 

disconnected

Connected 

channel 

Channel 

enabled

Network fault

Communication 

problem and 

non-participant 

channel

Communication 

problem and 

non-participant 

channel

Command or 

reference 

parameter 

received

All parameters 

assigned to drive 

functions have been 

Communication 

problem and 

participant 

channel

Communication 

problem and 

participant 

channel