HARDWARE MANUAL Document reference MAMPS-HW/E
VM600 machinery protection system (MPS) Edition 18 - March 2022
14 - 2
Cleaning
MAINTENANCE AND TROUBLESHOOTING
14.2Cleaning
It is not required to clean a VM600 rack.
However, if cleaning does become necessary:
• Clean with a dry cloth only.
• Keep away from live electrical parts.
• Do not use any solvents or cleaning agents. Never pour or spray any cleaner or liquid on
the rack. Keep all liquids away from the rack.
Liquids entering the housing of the rack can cause short-circuits and damage electronic
components.
14.3General remarks on fault-finding
The following sections contain information needed to localise a failure, whether this is due to
an internal MPS problem (that is, within the VM600 rack) or to an external problem.
The complete measurement system is composed of the following elements (arranged in the
order of the signal processing):
• The transducers and signal conditioners
• The cabling between the transducers and
signal conditioners, and the IOC4T / IOC8T cards
• The VM600 rack, including the IOC, MPC4, AMC8 and/or CPUM cards.
The diagnostics of a system failure can be separated into these parts.
NOTE: Before troubleshooting the MPS, it is worthwhile checking that the overall
measurement chain (transducer, signal conditioner and cabling) is correctly
installed.
14.4Detecting problems due to front-end components and cabling
14.4.1 Front-end problems
A front-end problem may be due to:
1- A defective transducer and signal conditioner.
2- Incorrect cabling of the transducer.
3- Cabling between the transducer and the signal conditioner and the VM600 rack
becoming damaged (for example, open-circuit or short-circuit).
4- Incorrect configuration of the input transducer using the VM600 MPSx software.
5- A problem with an external power supply (if used), leading to incorrect powering of the
transducer, signal conditioner and/or galvanic separation unit.
HAZARDOUS VOLTAGES EXIST WITHIN VM600 RACKS.
I
F CLEANING BECOMES NECESSARY, USE A DRY CLOTH ONLY AND KEEP AWAY FROM
LIVE
ELECTRICAL PARTS.
S
EE ALSO HAZARDOUS VOLTAGES AND THE RISK OF ELECTRIC SHOCK ON PAGE XVII.
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