Avtron HS6A, Инструкция по эксплуатации, Страница: 3 / 29

HS6A 3
For CANOpen, ensure termination resistors are in place (or switched
on) at each end of the cabling system, and that no termination
resistors are in placed or activated in the middle of the system.
Remove the connections to the master controller and all devices,
or power down all devices. Measure the resistance between the
communication wires [Example CANOpen-measure between CAN_L
and CAN_H]. The value should be ~1/2 of the termination resistor
value on the network. For CANOpen, this value should be >50 ohms,
<65 ohms. If the resistance is greater than the limit, a termination
resistor is missing from the network. If the resistance is less than
the limit, there are incorrect termination resistors switched on or
connected to the system.
Flange Option “6” includes a two-color diagnostic LED. Red
indicates an error, Green indicates run status. During normal
operation, the encoder LED should be continously green. Flash
patterns indicate activity as follows:
RED - Error
Flickering - (Autobitrate/LSS services are in process)
Blinking - Configuration error
1) Flash - CAN bus frame error
2) Flashes - CAN guard timing or heartbeat error
3) Flashes - Sync message timeout
4) Flashes - PDO message timeout
ON - CAN Controller is in bus off state
GREEN - Run
Flickering - (Autobitrate/LSS services are in process)
Blinking - Encoder is in preoperational mode
1) Flash - Encoder is in stopped mode
3) Flashes - Software download in progress
ON - Encoder is operating normally with no errors
Nidec-Avtron recommends the use of a simple no-cost debugging
tool such as PCAN View.
Ensure the device is set to the proper baud rate (connection cap, or
for units with no connection cap, via software)
Ensure the device is set to the proper node address (connection cap
or for units with no connection cap, via software)
The encoder will power-up in the pre-operational mode.
The message it will issue is:
ID: 0x07nn 0x00
If you cannot see this message, try power cycling the device.
Note that CANOpen units with a hardware connection cap are
typically set to 20K default baud rate. Not all master devices
support 20K, so the power-up message may not be displayed.
Check the baud rate and node address on the connection cap.
ANALOG TROUBLESHOOTING
For analog output, a multimeter can be used to measure the output
signal. Disconnect the encoder outputs (but maintain the power
connection) to ensure no interference from field wiring and measure
the output voltage or current directly at the encoder depending
on the output style selected. Rotating the shaft should produce a
change in output value.
For analog output: If the output is within the expected range
but does not seem to change, the analog value may have been
accidently scaled to a tiny fraction of a revolution or such a huge
number of turns that the output change cannot be detected.
Connect both Set End Point 1 and Set End Point 2 to +Vs for 1
1 second or more, then connect them to ground or no connection.
The encoder will be reset to use the full scale factory default with
the output and position set to the mid-point of the full scale. Now
monitor output voltage or current while rotating. You should observe
a voltage or current change. Now follow the instructions in the
analog section to properly reset the analog minimum and maximum
values.