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8-9
Fault
display
Probable cause and remedy
Fault name and meaning
BUS
Communications error
(Option Unit)
A communications error
occurred at the Option Unit.
•
Communications cable wired incorrectly, short-circuited, or
disconnected.
→
Check and correct the communications cable wiring.
•
Data destroyed by noise.
→
Change to a dedicated communications cable or to
shielded cable, and mask the shield or ground it at the
power supply.
→
Use a dedicated communications power supply, and
connect a noise filter to the power supply input side.
•
Option Unit is damaged.
→
If communications errors frequently occur and there is no
problem with the wiring, replace the Option Unit.
OFF
Power supply error
Control power supply voltage
is insufficient.
•
No power supply is provided.
→
Check and correct the power supply wire and voltage.
•
Terminal screws are loose.
→
Check and tighten the terminal screws.
•
Operator connectors are faulty.
→
If only the Operator indicator is not lit, (i.e., if the RUN
and ALARM indicators are lit), check and correct the
Operator’s connectors.
•
The Inverter is damaged.
→
Replace the Inverter.
Note
This fault is displayed for 200 and 400-V, 5.5-/7.5-kW Inverters only.
Maintenance Operations
Chapter 8
Summary of Contents for SYSDRIVE 3G3MV-A2001
Page 1: ...Cat No I527 E1 04 USER S MANUAL SYSDRIVE 3G3MV Multi function Compact Inverter...
Page 2: ......
Page 3: ...USER S MANUAL Multi function Compact Inverter SYSDRIVE 3G3MVSERIES...
Page 18: ......
Page 23: ...Chapter 1 Overview 1 1 Functions 1 2 Nomenclature 1 3 New Features 1...
Page 32: ......
Page 33: ...Chapter 2 Design 2 1 Installation 2 2 Wiring 2...
Page 74: ......
Page 93: ...Chapter 4 Test Run 4 1 Procedure for Test Run 4 2 Operation Example 4...
Page 102: ......
Page 142: ......
Page 242: ......
Page 268: ......
Page 269: ...Chapter 9 Specifications 9 1 Inverter Specifications 9 2 Option Specifications 9...
Page 303: ...Chapter 10 List of Parameters 10...
Page 337: ...Chapter 11 Using the Inverter for a Motor 11...
Page 343: ......
Page 344: ...I527 E1 04...