5.3 Description of Function Codes 5.3.2 E codes (Extension terminal functions)
Terminal function assignment and data setting
Select multistep frequency “SS1”, “SS2”, “SS4”, and “SS8” assignment (Function code data = 0, 1, 2,
and 3)
The combination of the ON/OFF states of digital input signals “SS1”, “SS2”, “SS4” and “SS8” selects one of 16
different frequency commands defined beforehand by 15 function codes C05 to C19 (Multistep frequency 1 to 15).
With this, the inverter can drive the motor at 16 different preset frequencies.
( Function codes C05 to C19)
Select ACC/DEC time “RT1” and “RT2” assignment (Function code data = 4 and 5)
These terminal commands switch between ACC/DEC time 1 to 4 (F07, F08 and E10 through E15).
( Function codes F07, F08)
Select 3-wire operation “HLD” assignment (Function code data = 6)
This is used as the self-hold signal when performing 3-wire operation with the “FWD”, “REV”, and “HLD” signals.
( Function code F02)
Coast to stop “BX” assignment (Function code data = 7)
Turning “BX” ON immediately shuts down the inverter output. The motor free runs to a stop, without issuing any
alarm.
Reset alarm “RST” assignment (Function code data = 8)
Turning this terminal command ON clears the ALM state--alarm output (for any alarm). Turning it OFF erases the
alarm display and clears the alarm hold state. When you turn the “RST” command ON, keep it ON for 10 ms or
more. This command should be kept OFF for the normal inverter operation.
Fig. 5.3-1
Inverter operation
status
Alarm output
(for any alarm) ALM
Alarm indication illuminated
Alarm hold state (stop)
No alarm indication
Operable state
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