Emerson unidrive m200 - Maintenance & Inspection

Electronic Bypass Controller Installation and Commissioning Guide 35
Operating conditions:
• Altitude: to 3,300 ft, higher with derating
• Ambient operating temp: +32 to +104°F (0 to +40˚C)
• Storage temp: -40 to +140˚F (-40 to +60˚C)
• 95% relative humidity, non-condensing
• Input voltage: +10%, -10%; 208, 230 and 460 Vac
• Protected from exposure to direct sunlight
Options:
• Input fused disconnect
• Input circuit breaker
• Input or output reactors
• Multiple motor overloads
• Input RFI lter
• Ethernet
7.2 Maintenance & Inspection
This section describes the basic periodic maintenance and inspection procedures for
the electronic bypass.
CAUTION! To prevent electrical shock and damage, disconnect all power before
servicing the electronic bypass package. Then wait at least ten (10) minutes after the
power supply is disconnected and all LEDs are extinguished.
The electronic bypass will function longer if kept clean, cool and dry, and if all
precautions highlighted in this manual are observed. Periodically inspect the
electronic bypass package as described in the table below to prevent accidents and to
ensure high performance with high reliability.
Component Check Corrective Action
External terminals, connectors,
mounting screws, etc.
Loose screws or
connectors.
Secure / tighten.
Heat sink Build-up of dust
and dirt.
Blow with dry compressed air
(4 to 6kg-cm
2
pressure).
Printed Circuit Board (PCB) Accumulation of
conductive dust
or oil.
Blow with dry compressed
air (4 to 6kg-cm
2
pressure).
If dust cannot be removed,
replace the board.
Cooling fan For abnormal
noise and
vibration.
Replace the cooling fan.
Power components Accumulation of
dust and dirt.
Blow with dry compressed air
(4 to 6kg-cm
2
pressure).