Rockwell Automation 1560E SMC Flex Smart Motor Controller - Manual (Page 161)

Maintenance 10-3
1560E-UM050B-EN-P - June 2013
Solid-State Devices
Solid-state devices require little more than a periodic visual inspection.
Printed circuit boards should be inspected to determine whether all cables
are properly seated in their connectors. Board locking tabs should also be in
place. Necessary replacements should be made only at the PC board or
plug-in component level. Solvents should not be used on printed circuit
boards. Where blowers are used, air filters, if supplied, should be cleaned
or changed periodically depending on the specific environmental conditions
encountered. For additional information see NEMA Standards Publication
No. ICS 1.1 - 1987 entitled "Safety Guidelines for the Application, Installation
and Maintenance of Solid State Control".
Use of other than factory recommended test equipment
for solid-state controls may result in damage to the
control or test equipment, or unintended actuation of the
controlled equipment.
Static-Sensitive Items
While performing maintenance on the MV SMC, special precautions must
be observed in handling or touching certain static-sensitive components in the
cabinet. Most circuit cards and SCRs can be damaged by Electro-Static
Discharge (ESD). If personnel will make contact with an ESD-sensitive
component during maintenance, they must be grounded. Grounding should
be accomplished with a wrist strap which is connected to an approved
ground.
Overload Maintenance After a Fault Condition
See NEMA Standards Publication No. ICS 2 Appendix A entitled
"Maintenance of Motor controllers after a fault condition".
Final Check Out
After maintenance or repair of industrial controls, always test the control
system for proper functioning under controlled conditions that avoid
hazards in the event of a control malfunction.
A T T E N T I O N A T T E N T I O N