Rockwell Automation 150 SMC Quick Start Manual User Manual

Page 54

Rockwell Automation Publication 150-QS003D-EN-P - November 2013

Chapter 4 Operation and Troubleshooting

Table 25 - Port Assignment

Network and
Comm’s Loss

See Port
Number of
Fault (See

Table 25

)

All

• DPI network loss

• Communication disconnect at the

serial port

• Check communication adapters and verify connection to the

SMC.

• Reconnect each DPI connected device

Ground Fault

Running

• Ground fault current level has

exceeded programmed value

• The delay time is too short for the

application

• Check power system and motor; correct if necessary. Check

programmed ground fault levels to match application
requirements

• Extend the delay time to match the application requirements

Line Power
Quality with
Phase Indication

52, 53, 54

Start or
Stop

• Incoming 3-phase voltage

instability or distortion

• High impedance connection

• Check supply voltage for capability to start/stop motor;

check for loose connections on the line side or motor side of
the power wires

• Verify and correct the input power quality

Internal 24V and
System Faults

36, 37

All

• Low line condition

• Excessive load on internal 24V

supply

• Check the control power and verify it is within the

specification; check the connections and grounding to the
SMC control terminals

• Replace the control module

Display Fault

HIM or
Software
Fault Code

Enabled

Possible Causes

Possible Solutions

Port Number

Source

Control Module

HIM Located in Controller Bezel (optional)

2 or 3

Remote DPI

20-COMM-X (optional)

7, 8, 9

Expansion Port 7, 8, 9 (option module)