Maintenance; Tools And Test Equipment - Siemens Moore 353 User Manual

UM353-1

11.0 MAINTENANCE

Controller maintenance requirements are minimal. Activities such as cleaning and visual inspections should be
performed at regular intervals. The severity of the controller's operating environment will determine the frequency
of maintenance. Additional topics including troubleshooting, assembly replacement, and software compatibility are
also covered. Figure 11-1 has an exploded view of the controller.
Before servicing or calibration the equipment, note the following statements.
•
Maintenance should be performed only by qualified personnel. Failure to properly maintain the equipment can
result in death, serious injury, or product failure. This manual should be carefully reviewed, understood, and
followed.
•
The steps in the Preventive Maintenance section should be performed regularly.
•
The procedures in this section do 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 or should particular problems arise which are not covered sufficiently for the
purchaser's purposes, the matter should be referred to the local Siemens sales office.
•
The use of unauthorized parts in the repair of the equipment or tampering by unqualified personnel will result
in dangerous conditions that can cause death, serious injury, or equipment damage. Follow all safety
instructions contained herein.
•
Remove power from all wires and terminals before working on equipment.
•
In potentially hazardous atmosphere, remove power from equipment before
connecting or disconnecting power, signal, or other circuit.
•
Observe all pertinent regulations regarding installation in hazardous area.

11.1 TOOLS AND TEST EQUIPMENT

The following tools and equipment are necessary for servicing:
A. Common hand tools for servicing electronic equipment
B. Digital Multimeter (DMM)
Voltmeter Section:
Accuracy +/-0.01% of reading
Resolution 1.0 millivolt input
Impedance 10 Megohms
Ammeter section:
Accuracy +/- 0.1% of reading
Resolution 100 microamperes
C. Maintenance Kit, P/N 15545-110, containing wrist strap and conductive mat. This kit or an equivalent is
required when a circuit board assembly is handled for any reason.
March 2003
WARNING
Electrical shock hazard
Explosion hazard
Can cause death or injury
Maintenance
11-1