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

4-30
In the case of bipolar input (terminal [12] with C35 = 0, terminal [V2] with C45 = 0)
Setting C35 and C45 data to "0" enables terminal [12] and [V2] to be used for bipolar input (-10 V to +10 V)
respectively.
When both F18 (Bias) and C50 (Bias base point) are set to "0," the negative and positive voltage inputs produce
reference frequencies symmetric about the origin point as shown below.
Configuring F18 (Bias) and C50 (Bias base point) to specify an arbitrary value (Points A1, A2, and A3)
gives the bias as shown above.
A reference frequency can be specified not only with the frequency (Hz) but also with other menu items,
depending on the setting of function code E48 (= 3 to 5, or 7).
[ 3 ] Using digital input signals UP/DOWN (F01 = 7)
When the UP/DOWN control is selected for frequency setting with a run command ON, turning the terminal
command UP or DOWN ON causes the output frequency to increase or decrease, respectively, within the range
from 0 Hz to the maximum frequency as listed below.
To enable the UP/DOWN control for frequency setting, it is necessary to set F01 data to "7" and assign the UP
and DOWN commands to any of digital input terminals [X1] to [X7], [FWD] and [REV] with any of E01 to E07 (data
= 17 or 18).
UP
DOWN
Function
Data = 17
Data = 18
OFF
OFF
Keep the current output frequency.
ON
OFF
Increase the output frequency with the acceleration time currently
specified.
OFF
ON
Decrease the output frequency with the deceleration time currently
specified.
ON
ON
Keep the current output frequency.