Baldor MN1928 Troubleshooting, Symptom, Check, NODESCAN keyword, CONNECT keyword

Models: MN1928

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Symptom

Check

 

 

 

 

The CANopen bus is

This means that the internal CAN controller in the NextMove ES has

 

‘off’

experienced a fatal number of Tx and/or Rx errors, greater than the

 

 

off threshold of 255.

 

 

At this point the node will have switched itself to a state whereby it

 

 

cannot influence the bus.

 

 

Check:

 

 

H 12-24V is being applied to pin 5 of the RJ45 CAN

 

 

connector, to power the opto-isolators.

 

 

H There is at least one other CANopen node in the

 

 

network.

 

 

H The network is terminated only at the ends, not at

 

 

intermediate nodes.

 

 

H All nodes on the network are running at the same

 

 

baud rate.

 

 

H All nodes have been assigned a unique node ID.

 

 

H The integrity of the CAN cables.

 

 

To recover from the ‘off’ state the bus must be reset. This can be

 

 

done using the MintMT BUSRESET keyword, or by resetting the

 

 

NextMove ES.

 

 

 

 

The Manager node

Assuming that the network is working correctly (see previous

 

cannot

symptoms) and the bus is in an ‘Operational’ state, check the

 

scan/recognize a

following:

 

node on the network

 

 

using the MintMT

H Only nodes that conform to DS401, DS403 and other

 

NODESCAN keyword.

Baldor CANopen nodes are supported by the MintMT

 

 

NODESCAN keyword.

 

 

H Check that the node in question has been assigned a

 

 

unique node ID.

 

 

H The node must support the node guarding process.

 

 

NextMove ES does not support the Heartbeat

 

 

process.

 

 

H Try power-cycling the node in question.

 

 

If the node in question does not conform to DS401 or DS403 and is

 

 

not a Baldor CANopen node, communication is still possible using a

 

 

set of general purpose MintMT keywords. See the MintMT help file

 

 

for further details.

 

 

 

 

The node has been

For communication to be allowed, a connection must be made to a

 

successfully

node after it has been scanned.

 

scanned /

 

 

recognized by the

H Baldor controller nodes are automatically connected

 

Manager node, but

to after being scanned.

 

communication is still

H Nodes that conform to DS401, DS403 must have the

 

not possible.

connections made manually using the MintMT

 

 

CONNECT keyword.

 

 

If a connection attempt using CONNECT fails then it may be because

 

 

the node being connected to does not support an object which

 

 

needs to be accessed in order to setup the connection.

 

 

 

MN1928

Troubleshooting 7-7

Page 109
Image 109
Baldor MN1928 installation manual Troubleshooting, Symptom, Check, NODESCAN keyword, CONNECT keyword