Communication Disconnection Detection Function; Heartbeat Consumer; Heartbeat Producer; Node Guarding - Toshiba TOSVERT VF-MB1 Series Manual

6.4. Communication disconnection detection function

VF-MB1 CANopen
disconnection.
Heartbeat service and Node Guarding service function can not be active at the same time.
･ Heartbeat service
･ Heartbeat Consumer
Watching the heartbeat message of the specific Node-ID, and checking the interval time, the
inverter can detect the network abnormal condition.
･ Heartbeat Producer
Sending the heartbeat message of own Node-ID, the inverter can inform its node status.
･ Node Guarding service
NMT master polling the Guarding message, NMT master can detect each mode state and
network abnormal condition.
Recommend to use Heartbeat service to reduce the network traffic.

6.4.1. Heartbeat Consumer

Heartbeat consumer node can detect abnormal condition by watching the heartbeat message configured
specific Node-ID and interval time of Object #1016.
When the inverter detects the network abnormal condition, the inverter changes the drive condition
according to the parameter setting (c100 ~ c103)

6.4.2. Heartbeat producer

Heartbeat producer function sends the heartbeat message with object #1017 interval setting.
Heartbeat message send data
COB-ID RTR
0x700+
0
Node-ID

6.4.3. Node Guarding

When received the Node Guarding message, the inverter send the Node Guarding message with the
node state.
When the inverter does not receive the Node Guard message in the interval time (=Guard Time x Time
Factor, Max time is limited internally 1 hour.) set by Object #100C (Guard Time) and #100D (Time
Factor), the inverter detect the network error and changes the drive condition according to the parameter
®
supports Heartbeat service and Node Guarding service to detect the communication
DLC Data0 Data1
1 State ---
State
0 Boot up
4 Stooped
5 Operational
127 Pre-operational
Data2 Data3 Data4
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Comments
- 35 -
E6581692
Data5 Data6 Data7
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