27
ROBOVENT • DFS SERIES OWNER’S MANUAL
SECTION 900
VFD Maintenance Procedure
(continued)
Preventative Maintenance of VFD
Ambient Temperature
Humidity
Dust
Harmful Gas
Oil Mist
Abnormal vibration or noise
Main circuit & control voltage
Loose lugs, screws & wires
Hot spots on parts
Corrosion
Bent conductors
Breakage, cracking or discoloration
Check spacing
Discoloration or Noise
Loose, damaged
Leakage
Ruptures, broken, expansion
Capacitance & insulation resistance
Noisy
Contact discoloration
Cracked
Discoloration
Speed reference voltage/current
I/O contact operation
Abnormal fan noise
Loose connections
Free of accumulation
LEDs
Monitor display values
Key functionality
Clean
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Environment
Equipment
AC Power Supply
Conductors & Wire
Connections
Transformers & Reactors
Terminal Blocks
DC Bus Capacitors
Relays & Contactors
Soft Charge Resistors
Operation
Cooling Fans/Fins & Heatsink
Digital Operator
General
AC Power Circuit
& Devices
Control Circuits
Cooling System
Keypad/Display
INSPECTION POINT
ITEM
CHECK POINTS
EVERY
3-6 MONTHS
YEARLY
Table 8.3
Preventative Maintenance
If the Drive is used under the following conditions, it may be necessary to inspect more often:
• High Ambient temperatures, humidity or altitudes above 3,300 feet
• Frequent starting and stopping
• Fluctuations of the AC power supply or load
• Excessive vibration and/or shock loading
• Poor environment, including dust, metal particles, salt, sulfuric acid, chlorine
Summary of Contents for FloorSaver Series
Page 2: ......
Page 29: ...ROBOVENT FUSION 4 5 SERIES OWNER S MANUAL 65 SECTION 1000 Motor Greasing Guide ...
Page 38: ...ROBOVENT DFS SERIES OWNER S MANUAL ...
Page 41: ...APPENDIX A ePad Electronic Programmable Controller Instruction Manual ...
Page 51: ...APPENDIX B General Wiring Diagram ...
Page 52: ...B 1 ROBOVENT DFS SERIES OWNER S MANUAL APPENDIX B General Wiring Diagram Single Blower ...
Page 53: ...ROBOVENT DFS SERIES OWNER S MANUAL B 2 APPENDIX B General Wiring Diagram Double Blower ...
Page 54: ......
Page 55: ...APPENDIX C Parts List ...
Page 58: ......
Page 59: ......