Schneider Altivar 28 Manual De Usario página 69

Configurable I/O Application Functions
Recommendations:
• In 2-wire control (TCC=2C), do not assign Atr to no (drC menu)
• In 3-wire control (TCC=3C), the PI output (ref.) must be greater than 0.7 Hz. If it is less than 0.7 Hz,
this state is interpreted as a stop (machine safety regulations). In order to restart, the PI ref. must be
greater than 0.7 Hz. LSP must be set to a value greater than 0.7 Hz. To stop the motor, set LI1 (STOP)=0
Notes:
The PI function is incompatible in terminal mode (LCC = Yes)
"Manual - Automatic" operation with PI
This function combines the PI regulator and reference switching by a logic input. The speed reference
is given by AI1 or by the PI function, depending on the state of the logic input.
or
AI1
AI2
or
AIC
LIX=rFC and LIX=1
Ref. (0-AImax)
Man
Auto
LIX=rFC and LIX=0
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