5.3 Description of Function Codes 5.3.2 E codes (Extension terminal functions) 
 
 
Speed limit for 
forward rotation 
The motor speed limit value can be set with terminal [12] and terminal 
[C1] (C1/V3 functions) under torque control. To limit the motor speed to 
the maximum frequency (F02, A01), set the analog input (maximum 
input) to the maximum value. 
If using this function, it is recommended that it be used in combination 
with d35 (overspeed detection level). 
Note:   Function codes C31 to C45 (analog input adjustment) are 
applied to these analog inputs. 
Effective range: 0% to 100% 
Speed limit for 
reverse rotation 
Analog signal input 
monitor 
By inputting analog signals from various sensors such as the 
temperature sensors in air conditioners to the inverter, you can monitor 
the state of external devices via the communications link. By using an 
appropriate display coefficient, you can also have various values to be 
converted into physical quantities such as temperature and pressure 
before they are displayed. 100%/full scale. 
 
If the same setting is specified for a different terminal, priority is given in the order E61, E62, E63, E66. 
 
 
Saving of digital reference frequency
 
 
E64 specifies how to save the reference frequency specified in digital format by the  /   keys on the keypad as 
shown below. 
The reference frequency will be automatically saved when the main power is turned OFF. At 
the next power-on, the reference frequency at the time of the previous power-off applies. 
Pressing the    key saves the reference frequency. If the control power is turned OFF 
without pressing the    key, the data will be lost. At the next power-ON, the inverter uses 
the reference frequency saved when the    key was pressed.