Maintenance And Troubleshooting - Siemens 72G Series Setup Manual

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Maintenance and Troubleshooting

General Guidelines:
Failure to properly maintain this equipment can result in death, serious injury, and property damage or product
failure. The instructions referred to below should be carefully reviewed, understood, and followed regularly:
Step 1 - The following NEMA standards should be used as the basis of a preventive maintenance program:
ICS 1.1-1984 (R1988) "Safety guidelines for the Application, Installation, and Maintenance of Solid State
Control."
ICS 1.3-1986 (R1991) "Preventive Maintenance of Industrial Control and Systems Equipment."
Step 2 - If the torque requirements for wiring connections are not legible, refer to UL 486 "Equipment Wiring
Terminals" for nominal torque values.
Step 3 - In the circumstance of a fault condition as indicated by the opening of a short circuit protective device, refer
to annex A ("Maintenance of Motor Controllers After a Fault Condition") of NEMA standard ICS 2-1993
"Industrial Control and Systems, Controllers, Contactors, and Overload Relays Rated Not More Than 2000
Volts AC or 750 Volts DC."
This checklist does not represent an exhaustive survey of maintenance steps necessary to ensure safe operation of
the equipment. Particular applications may require further procedures. Should further information be desired the
matter should be referred to the local sales office.
Dangerous voltages are present in the equipment which can cause death, serious injury, or property damage.
Always de-energize and ground the equipment before maintenance. Maintenance should be performed only by
qualified personnel.
The use of unauthorized parts in the repair of the equipment or tampering by unqualified personnel will result in
dangerous conditions which can cause death, serious injury, or equipment damage. Follow all safety instructions
contained herein.
As this is a Solid State device, maintenance is limited to periodically checking the Line and load connections for
proper torque and ensuring the heatsink is clean and clear of obstructions.
If the starter utilizes a fan, verify the fan is operating and the opening is clear of obstructions.
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Siemens Energy & Automation, Inc. 3333 Old Milton Parkway Alpharetta, GA 30202
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