Viking03a
Member
First part of this week we had a lightning induced momentary
power failure. An A-B Micrologix 1200 PLC suddenly faulted,
indicating a application program fault. Subsequently reloaded
program, and off we went, with the 1200 happy, and all lights
blinking green...
Operated the system, mainly in standby mode for the past 14-16
hours, and when the operator pressed a series of command buttons,
oops, the 1200 faulted out again, same application fault. System
trouble shot, and no electrical problem found, other than the
Micrologix 1200, stopped and blinking the red fault light.
Has anybody noted this controller to be extra sensitive to spikes, or noise, or perhaps the big jolt at the firts part of the week blew out some noise protection, or spike protection in
this controller, which will result in replaceing the controller.
This controller is operating a number of solinoid valves on a
hydraulic system, and I have not found any snubbers or spike
protection to protect the outputs from solinoid release spiking,
which could also capacitivly couple to the PLC input power.
This system has run for a number of years in an R&D mode, and
now going into a production mode, is giving us problems.
Suggestions and ideas ????
Thanks
Tim Jones
Elan Motorsport Technologies Inc.
Georgia
power failure. An A-B Micrologix 1200 PLC suddenly faulted,
indicating a application program fault. Subsequently reloaded
program, and off we went, with the 1200 happy, and all lights
blinking green...
Operated the system, mainly in standby mode for the past 14-16
hours, and when the operator pressed a series of command buttons,
oops, the 1200 faulted out again, same application fault. System
trouble shot, and no electrical problem found, other than the
Micrologix 1200, stopped and blinking the red fault light.
Has anybody noted this controller to be extra sensitive to spikes, or noise, or perhaps the big jolt at the firts part of the week blew out some noise protection, or spike protection in
this controller, which will result in replaceing the controller.
This controller is operating a number of solinoid valves on a
hydraulic system, and I have not found any snubbers or spike
protection to protect the outputs from solinoid release spiking,
which could also capacitivly couple to the PLC input power.
This system has run for a number of years in an R&D mode, and
now going into a production mode, is giving us problems.
Suggestions and ideas ????
Thanks
Tim Jones
Elan Motorsport Technologies Inc.
Georgia