Chapter 4: AC Drive Parameters
Page 4–111
DURApulse GS4 AC Drive User Manual – 1st Ed, Rev A - 10/20/2017
Type Hex Addr Dec Addr
P4.63 Loss of AI1 Signal (4~20mA)
R/W 043F 41088
P4.64 Loss of AI2 Signal (4~20mA)
R/W 0440 41089
Range/Units (Format: 16-bit binary) Default
0: Disable (will decelerate to 0Hz and will not generate an error or fault; will restart
when signal returns)
1: Continue Run at Last Freq and display “AnL” (ANL Warning) (will follow AIx signal if it
returns)
2: Decelerate to 0Hz and display “AnL” Warning (will restart if signal returns)
3: Stop immediately and display “ACE” Fault (will not restart)
P4�63: 0
P4�64: 0
These parameters determine the behavior of the GS4 drive when AI1 or AI2 signal is lost when set
to 4~20mA.
•
P4�63 configuration is valid only if AI1 is set for 4-20mA (per P4�05)�
•
P4�64 configuration is valid only if AI2 is set for 4-20mA (per P4�06)�
If P4.63/P4.64 is set to 1 or 2 and AI1/AI2 signal is lost, warning code “AnL” will blink on the keypad
display. The keypad will continue to blink “AnL” until the signal is restored.
If P4.63/P4.64 is set to 3 and AI1/AI2 signal is lost, warning code “ACE” will blink on the keypad
display. The keypad will continue to blink until the signal is restored, and a reset command is
issued (STOP/RESET key, etc.).
NOTE: Both of these faults/warnings (ACE/AnL) are active only if the drive is currently looking for the
analog signal. (Can switch to the alternate Local/Remote Mode to temporarily bypass the fault).