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Clearing a fault condition – ProSoft Technology MVI56-LTQ User Manual

Page 39

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MVI56-LTQ ♦ ControlLogix Platform

Diagnostics and Troubleshooting

Limitorque Valve Actuator Master Communication Module

User Manual

ProSoft Technology, Inc.

Page 39 of 98

August 30, 2010

During module configuration, the OK LED will be red and the APP and BP ACT
LEDs will be on. The bits in the configuration word are shown in the following
table. The module configuration error word has the following definition:

Bit

Description

Value

0

Invalid baud rate specified.

0x0001

1

Message response timeout < 200.

0x0002

2

Maximum slave count > 150.

0x0004

3

Maximum slave count = 0.

0x0008

4

0x0010

5

Invalid network polling scheme value (must be 0, 1 or 2).

0x0020

7

0x0080

8

0x0100

9

0x0200

10

0x0400

11

0x0800

12

0x1000

13

0x2000

14

0x4000

15

0x8000

Correct any invalid data in the configuration for proper module operation. When
the configuration contains a valid parameter set, all the bits in the configuration
word will be clear. This does not indicate that the configuration is valid for the
user application. Make sure each parameter is set correctly for the specific
application.

If the APP, BP ACT and OK LEDs blink at a rate of every one-second, this
indicates a serious problem with the module. Call ProSoft Technology support to
arrange for repairs.

4.1.1 Clearing a Fault Condition

Typically, if the OK LED on the front of the module turns RED for more than ten
seconds, a hardware problem has been detected in the module or the program
has exited.

To clear the condition, follow these steps:

1 Turn off power to the rack.
2 Remove the card from the rack.
3 Verify that all jumpers are set correctly.
4 If the module requires a Compact Flash card, verify that the card is installed

correctly.

5 Re-insert the card in the rack and turn the power back on.
6 Verify correct configuration data is being transferred to the module from the

ControlLogix controller.

If the module's OK LED does not turn GREEN, verify that the module is inserted
completely into the rack. If this does not cure the problem, contact ProSoft
Technology Technical Support.