Chapter 6 Troubleshooting
This section describes troubleshooting the DeviceNet Option Card.
Verify the Drive .................................................................................................. 6-2
LED States .......................................................................................................... 6-2
DeviceNet Faults................................................................................................. 6-3
Network Wiring .................................................................................................. 6-5
Troubleshooting 6-1
Verify the Drive
Remove power from the drive and wait for the charge lamp to be completely extinguished. Wait at least five additional minutes for the drive to be completely discharged. Measure the DC bus voltage and verify that it is at a safe level.
WARNING!
Dangerous voltages in excess of 400VDC (230V drives) or 800VDC
(460V drives) are present at the DC bus terminals of the drive.
Remove the DeviceNet Option Card. Reapply power to the drive and verify that the drive runs as expected without the DeviceNet Option
Card installed.
If the drive runs as expected, remove power from the drive, following the guidelines described above, and reinstall the DeviceNet Option
Card. With the DeviceNet Option Card installed, reapply power to the drive.
LED States
The operational state of the DeviceNet Option Card LEDs after the DeviceNet diagnostic LED sequence has been completed is described below. Please wait at least 10 seconds for the loading process to complete before verifying the states of the LEDs. Compare the state of the
DeviceNet Option Card LEDs with the states listed in the table below to determine the nature of the fault.
Fig 6.1 – LEDs
Troubleshooting 6-2
LED
MOD
State
Off
On Green
Flash Green
Flash Red
On Red
Flash Red-Green
Off
NET
Flash Green
On Green
Flash Red
On Red
No Power
Device Operational
Device in Standby
Minor Fault
Unrecoverable Fault
Device Self-Test
Not Powered/Not Online
Online/Not Connected
Link OK/Online and Connected
Connection Timeout
Critical Link Failure
Communication Faulted
Indicates
Verify that the DeviceNet Option Card is properly installed.
Verify that the drive connected properly and is powered.
Normal operation
Drive not configured on the network
Recoverable fault
Cycle power to the DeviceNet Option Card. If fault continues replace the card.
Self-Test mode
Verify that the DeviceNet Option Card is properly installed.
Verify that the DeviceNet Option Card is properly connected to the network.
Verify that the drive connected properly and is powered.
Check network configuration.
Check PLC and DeviceNet scanner.
Normal operation
Check network connections.
Check PLC and DeviceNet scanner.
Check for duplicate MAC ID.
Check for faulty network connection.
Check 24VDC power supply voltage.
Check for proper installation of the termination resistors.
Check duplicate MAC IDs.
Flash Red &
Green
DeviceNet Faults
The table of DeviceNet Option Card fault codes returned by the drive is shown below. Refer to the appropriate drive user and/or programming manual(s) for drive-specific information on the fault returned.
0Ch
0Dh
0Eh
0Fh
10h
5h
6h
7h
8h
Drive
Code
0h
1h
2h
3h
4h
DeviceNet
Code
0000h
5120h
3220h
5110h
3222h
None
DC Bus Fuse Open (PUF)
DC Bus Undervoltage (UV1)
CTL PS Undervoltage (UV2)
MC Answerback (UV3)
2130h
2120h
2300h
3210h
Short Circuit (SC)
Ground Fault (GF)
Overcurrent (OC)
DC Bus Overvoltage (OV)
9h
0Ah
0Bh
4200h
4210h
2220h
Heatsink Over-Temperature (OH)
Heatsink Maximum Temperature (OH1)
Motor Overload (OL1)
2200h
2221h
2222h
7110h
7112h
Inverter Overload (OL2)
Overtorque Detection 1 (OL3)
Overtorque Detection 2 (OL4)
Dynamic Braking Transistor (RR)
Dynamic Braking Resistor (RH)
Description
Output Transistor Failure – Replace the drive.
Input power fluctuation too large
Cycle drive power – Replace drive if fault continues.
Cycle drive power – Replace drive if fault continues.
Check drive wiring.
Cycle drive power – Replace drive if fault continues.
Check for motor and/or cable damage.
Check motor, motor load and acc/dec rates.
Check incoming voltage.
Check deceleration time.
Check ambient temperature.
Check drive cooling fan.
Check drive cooling fan.
Check the load, acc/dec and cycle times.
Check motor rated current (E2-01).
Check the load, acc/dec and cycle times.
Check drive rating.
Check L6-02 and L6-03 settings.
Check system mechanics.
Check L6-05 and L6-06 settings.
Check system mechanics.
Cycle drive power – Replace drive if fault continues.
Check load, operating speed and deceleration time.
Troubleshooting 6-3
Drive
Code
11h
12h
13h
14h
15h
16h
17h
18h
DeviceNet
Code
9000h
9000h
9000h
9000h
9000h
9000h
4140h
External Fault 3 (EF3)
External Fault 4 (EF4)
External Fault 5 (EF5)
External Fault 6 (EF6)
External Fault 7 (EF7)
External Fault 8 (EF8)
Heatsink Fan (FAN)
7310h Overspeed Detection (OS)
7310h
7301h
3130h
3130h
5300h
5300h
6320h
0000h
7500h
7500h
7500h
7500h
8321h
8313h
1Eh
1Eh
1Fh
20h
21h
19h
1Ah
1Bh
1Ch
22h
23h
24h
25h
26h
Speed Deviation (DEV)
PG Open (PGO)
Input Phase Loss (PF)
Output Phase Loss (LF)
Operator Disconnected (OPR)
OPE Faults
EEPROM R/W Error (ERR)
No Fault
DeviceNet Communication Error (BUS)
SI-E Communications Error
SI-F/G Communications Error
SI-F/G CPU error
Out of Control (CF)
Zero Servo Fault (SVE)
27h 9000h External Fault 0 (EF0)
Description
Multifunction digital input set to external fault
Circuit at terminal is closed.
Check drive cooling fan.
Check reference and reference gain.
Check F1-08 and F1-09 settings.
Check load, acc/dec times and system mechanics.
Check F1-10 and F1-11 settings.
Check PG card connections.
Excessive input voltage fluctuation.
Check for broken wire/loose terminals.
Check motor rating.
Reconnect the digital operator.
Verify parameter settings.
Cycle drive power – Replace drive if fault continues.
Check DeviceNet network cable connections.
Check 24VDC power supply voltage.
Check DeviceNet Option Card installation and connections.
Check DeviceNet Option Card installation and connections.
Cycle drive power – Replace drive if fault continues.
Check motor parameters.
Auto-tune.
Check load.
Torque limit is too small.
Check PLC program.
Check MI switch setting.
Check DeviceNet Option Card LEDs for fault indication.
Troubleshooting 6-4
Network Wiring
1. Connector Wiring
The network cable wires are connected in the correct order.
All network wires are securely connected.
There are no short circuits between network wires or shield.
The network connector is securely inserted into the mating connector.
2. Network Cable
The number of DeviceNet nodes does not exceed 64 on any one network.
No drop line is longer than 6 m.
The total drop length is less than the allowable length for the network baud rate and cable type.
The network trunk length does not exceed the allowable length for the network baud rate and cable type.
Network cables are not close to high power or frequency cables.
3. Terminating Resistors
The terminating resistors are appropriately installed and are of the correct size and type.
Measure the DC resistance between CAN_L and CAN_H at the ends and middle of the network. The measurement should be between 50 ohms and 70 ohms.
4. Grounding
Single point ground technology is used.
The network shield and drain wire are grounded at only one point, preferably in the center of the network.
The 24VDC power supply common is grounded at the same point as the network shield and drain wire.
Check for noise with an oscilloscope.
5. 24VDC Power Supply
Turn on the 24VDC power supply and configure all nodes for their maximum current draw.
Measure the voltage between V+ and V- at the power supply and at each end of the network.
The voltage should not fall below 11VDC at any point on the network. If the network contains powered devices (proximity sensors, photoelectric sensors, etc.) the voltage should not fall below 20VDC.
The 24VDC power supply common is grounded at the single point ground.
Troubleshooting 6-5
Notes
Troubleshooting 6-6
