Lenze EMF2180IB - Manual (Page 57)

Lenze · EMF2180IB communication module (EthernetCAN) · Communication Manual · DMS 5.0 EN · 07/2014 · TD17
57
9 Parameter reference
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C0359
Parameter | Name:
C0359 | CAN bus status
Data type: INTEGER_32
Index: 24216 = 0x5E98
This code displays the current operating status of the CAN controller. Here, the following states are distinguished:
Selection 0: "Operational"
In this state the bus system is fully functional.
Selection 1: "Pre-operational"
In this state only parameter data (codes) can be transferred via the bus system. It is not possible to exchange process
data. To change to the "Operational" state, a network management frame must be output on the bus.
A state change from "Pre-operational" to "Operational" can be made with the following actions:
• A drive is defined as master using the inverter code C0352. During mains connection, an automatic state change
for the whole drive system is performed after the boot-up time defined in C0356/1
• "Reset node" via code C0358 (precondition: C0352 = 1).
• With the "Reset node" binary input signal which can, for instance, be set via a terminal if inverter code C0364 is
configured accordingly (precondition: C0352 = 1).
• A network management message from a CAN master.
Selection 2: "Warning"
Incorrect frames have been received if the state is "Warning". The CAN node is now only involved in a passive way;
no more data are sent from the inverter.
The reason for this situation can be:
• A missing bus terminator
• Inadequate shielding
• Potential differences at the ground connection for the control electronics
• An excessively high bus load
• CAN node is not connected to the bus
Selection 3: "Bus Off"
The frequency of the erroneous frames has caused the CAN node to decouple from the bus. A change-over to "Pre-
Operational" can be effected by ...
• a "TRIP reset";
• a "Reset node";
• reconnection to the mains.
Selection 4: "Stopped"
Only NMT frames can be received.
The state can be changed to "Pre-operational" by ...
• a "Reset node" via code C0358 ;
• a "Reset node" via the bus system;
• reconnection to the mains.
Selection list (read only)
0 Operational
1 Preoperational
2 Warning
3 Bus Off
4 Stopped
 Read access  Write access  CINH  PLC-STOP  No transfer