Hyundai N700E Instruction Manual page 106

N700E INSTRUCTION MANUAL
- Monthly and Yearly Inspection Chart
Item Inspected
Ambient
environment
Major devices
Power supply
insulation
Ground
Insulation
Mounting
Components
Housing
Terminal block
Smoothing
capacitor
Relay(s)
Resistors
Cooling FAN
Overall
Control
circuit
Capacitor
Display LEDs
Note1: The life of a capacitor is affected by the ambient temperature.
Note2: The inverter must be cleaned periodically.
If dust accumulates on the fan and heat sink, it can cause overheating of the inverter.
Inspection
Check for...
Cycle
Month
Extreme
∨
temperatures
& humidity
Abnormal
∨
vibration
noise
Voltage
∨
tolerance
Adequate
resistance
No loose
screws
Overheating
Dirt, dust
Secure
connections
Leaking
∨
swelling
Chattering
Cracks or
discoloring
∨
Noise
∨
Dust
No odor,
discoloring
corrosion
No leaks or
∨
deformation
∨
Legibility
Inspection Method
Year
Thermometer,
hygrometer
Visual and aural
Digital volt meter,
measure between
inverter terminals
R, S, T
Digital volt meter,
∨
GND to terminals
∨
Torque wrench
∨
Thermal trip events
∨
Visual
∨
Visual
Visual
∨
Aural
∨
Visual
Power down,
manually rotate
∨
Visual
Visual
Visual
8-3
Criteria
Ambient temperature
between -10 to 50℃,
non-condensing
Stable environment for
electronic controls
200V class:
200 to 240V 50/60Hz
400V class:
380 to 480V 50/60Hz
500V class
Mega ohm meter
• M3:0.5~0.6Nm
• M4:0.98~1.3Nm
• M5:1.5~2.0Nm
No trip events
Vacuum dust and dirt
No abnormalities
No abnormalities
Single click when
switching On or Off
Use Ohm meter to check
braking resistors
Rotation must be smooth
Vacuum to clean
No abnormalities
Undistorted appearance
All LED segments work