4-1
Chapter 4 Function Codes / Parameters
Refer to the user manual for function code descriptions not covered in this section.
4.1
Function Code Tables
Function codes enable the EQ7 series of inverters to be set up to match your system requirements.
Each function code consists of a 3-letter alphanumeric string. The first letter is an alphabet that identifies its group and the following two
letters are numerals that identify each individual code in the group. The function codes are classified into 13 groups: Fundamental
Functions (F codes), Extension Terminal Functions (E codes), Control Functions (C codes), Motor 1 Parameters (P codes), High
Performance Functions (H codes), Motor 2 (A codes), Application Functions 1 and 2 (J and d), Link Functions (y codes) and Option
Functions (o codes). To determine the property of each function code, set data to the function code.
This manual does not contain the descriptions of Option Function (o codes). For Option Function (o codes), refer to the instruction
manual for each option.
The following descriptions supplement those given in the function code tables on the following pages.
Changing, validating, and saving function code data when the inverter is running
Function codes are indicated by the following based on whether they can be changed or not when the inverter is running:
Notation
Change when running
Validating and saving function code data
Y*
Possible
If the data of the codes marked with Y* is changed with
and
keys,
the change will immediately take effect; however, the change is not saved
into the inverter's memory. To save the change, press the
key. If you
press the
key without pressing the
key to exit the current state,
then the changed data will be discarded and the previous data will take
effect for the inverter operation.
Y
Possible
Even if the data of the codes marked with Y is changed with
and
keys, the change will not take effect. Pressing the
key will make the
change take effect and save it into the inverter's memory.
N
Impossible
—
Copying data
The keypad is capable of copying of the function code data stored in the inverter's memory into the keypad's memory (refer to Menu #7
"Data copying" in Programming mode). With this feature, you can easily transfer the data saved in a source inverter to other destination
inverters.
If the specifications of the source and destination inverters differ, some code data may not be copied to ensure safe operation of your
power system. Whether data will be copied or not is detailed with the following symbols in the "Data copying" column of the function code
tables given on the following pages.
Y:
Will be copied unconditionally.
Y1: Will not be copied if the rated capacity differs from the source inverter.
Y2: Will not be copied if the rated input voltage differs from the source inverter.
N:
Will not be copied. (The function code marked with "N" is not subject to the Verify operation, either.)
For details of copying operation, refer to the User Manual Chapter 3, Section 3.4.9.
Using negative logic for programmable I/O terminals
The negative logic signaling system can be used for the programmable, digital input and output terminals by setting the function code
data specifying the properties for those terminals. Negative logic refers to the inverted ON/OFF (logical value 1 (true)/0 (false)) state of
input or output signal. An active-ON signal (the function takes effect if the terminal is short-circuited.) in the normal logic system is
functionally equivalent to active-OFF signal (the function takes effect if the terminal is opened.) in the negative logic system. Active-ON
signals can be switched to active-OFF signals, and vice versa, with the function code data setting, except some signals.
To set the negative logic system for an input or output terminal, enter data of 1000s (by adding 1000 to the data for the normal logic) in
the corresponding function code.
Example: "Coast to a stop" command
BX
assigned to any of digital input terminals [X1] to [X7] using any of function codes E01 through
E07
Function code data
Description
7
Turning
BX
ON causes the motor to coast to a stop. (Active-ON)
1007
Turning
BX
OFF causes the motor to coast to a stop. (Active-OFF)