Clearing a fault condition – ProSoft Technology MVI56-LTQ User Manual
Page 39
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.