Instruction manual
Table Of Contents
- Preface
- Safety Precautions
- Table of Contents
- Warnings, Cautions and Conformity
- Chapter 1 Drive Model Identification
- Chapter 2 Mounting and Wiring the Inverter
- Chapter 3 Operation using the Keypad
- Chapter 4 Function Codes / Parameters
- Chapter 5 Check Motor Rotation and Direction
- Chapter 6 Speed Reference Command Configuration
- Chapter 7 Operation Method Configuration (Run / Stop)
- Chapter 8 Motor and Application Specific Settings
- Chapter 9 Using PID Control for Constant Flow / Pressure Applications
- Chapter 10 Troubleshooting
- 10.1 Protective Functions
- 10.2 Before Proceeding with Troubleshooting
- 10.3 If Neither an Alarm Code Nor "Light Alarm" Indication Appears on the LED Monitor
- 10.4 If an Alarm Code Appears on the LED
- 10.5 If the “Light Alarm” Indication Appears on the LED Monitor
- 10.6 If an Abnormal Pattern Appears on the LED Monitor except Alarm Codes and "Light Alarm" Indication
- 10.7 If the Inverter is Running on Single-Phase Power
- Chapter 11 Specifications
10-20
[ 20 ] CPU error
Problem A CPU error (e.g. erratic CPU operation) occurred.
Possible Causes
What to Check and Suggested Measures
(1) Inverter affected by strong
electrical noise.
Check if appropriate noise control measures have been implemented (e.g.
correct grounding and routing of signal wires, communications cables, and main
circuit wires).
Implement noise control measures.
[ 21 ] Option communications error
Problem A communications error occurred between the option card and the inverter.
Possible Causes
What to Check and Suggested Measures
(1) There was a problem with
the connection between the
option card and the inverter.
Check whether the connector on the option card is properly engaged with that of
the inverter.
Reload the option card into the inverter.
(2) Strong electrical noise.
Check whether appropriate noise control measures have been implemented
(e.g. correct grounding and routing of signal wires, communications cables, and
main circuit wires).
Implement noise control measures.
[ 22 ] Option error
An error detected by the option card. Refer to the instruction manual of the option card for details.
[ 23 ] Operation protection
Problem An incorrect operation was attempted.
Possible Causes
What to Check and Suggested Measures
(1) The key was pressed
when H96 = 1 or 3.
Check that the key was pressed when a run command had been entered
from the input terminal or through the communications port.
If this was not intended, check the setting of H96.
(2) The start check function was
activated when H96 = 2 or 3.
Check that any of the following operations has been performed with a run
command being entered.
- Turning the power ON
- Releasing the alarm
- Switching the enable communications link LE operation
Review the running sequence to avoid input of a Run command when this
error occurs.
If this was not intended, check the setting of H96.
(Turn the run command OFF before releasing the alarm.)
(3) The forced stop digital input
STOP was turned OFF.
Check that turning the STOP OFF decelerated the inverter to stop.
If this was not intended, check the settings of E01 through E07 for terminals
[X1] through [X7].