9.2 Details of Function Codes
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Chap. 9 FUNCTION CODES
9.2.2 E codes (Extension terminal functions)
E01 Terminal [X1] Function E98 (Terminal [FWD] Function)
E02 Terminal [X2] Function E99 (Terminal [REV] Function)
E03 Terminal [X3] Function
Function codes E01 to E03, E98 and E99 assign commands (listed on the next page) to
general-purpose, programmable, digital input terminals [X1] to [X3], [FWD], and [REV].
These function codes can also switch the logic system between normal and negative to define
how the inverter logic interprets the ON or OFF state of each terminal. The default setting is
normal logic system "Active ON." So, explanations that follow are given in normal logic
system.
• Ensure safety before modifying the function code settings.
Run commands (e.g., "Run forward" FWD), stop commands (e.g., "Coast to a stop" BX), and
frequency change commands can be assigned to digital input terminals. Depending upon the
assignment states of those terminals, modifying the function code setting may cause a sudden
motor start or an abrupt change in speed.
• When the inverter is controlled with the digital input signals, switching run or frequency
command sources with the related terminal commands (e.g., SS1, SS2, SS4, SS8, Hz2/Hz1,
Hz/PID, IVS, and LE) may cause a sudden motor start or an abrupt change in speed.
An accident or physical injury may result.
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