Configurable I/O Application Functions - Schneider Altivar 28 Manual De Usario

Configurable I/O Application Functions
Logic input application functions
Direction of operation : forward / reverse
Reverse operation can be disabled for applications with a single direction of motor rotation.
2-wire control
Run (forward or reverse) and stop are controlled by the same logic input, for which state 1 (run) or 0
(stop) is taken into account.
On power-up or a manual fault reset or after a stop command, the motor can only be powered once the
"forward", "reverse" and "DC injection stop" commands have been reset. If the automatic restart function
is configured (parameter Atr in the drC menu), these commands are taken into account without a reset
being necessary.
3-wire control
Run (forward or reverse) and stop are controlled by 2 different logic inputs.
LI1 is always assigned to the stop function. Stop occurs on opening (state 0).
The pulse on the run input is memorized until the stop input is opened.
On power-up or a manual fault reset or after a stop command, the motor can only be powered once the
"forward", "reverse" and "DC injection stop" commands have been reset.
Ramp switching :
1st ramp : ACC, dEC ; 2nd ramp : AC2, dE2
This can be activated in 2 ways :
- By activating a logic input LIx or by detection of an adjustable frequency threshold Frt
Step by step operation (JOG):
Low speed operation pulse
If the JOG contact is closed and an operating direction is activated or deactivated, the ramps are 0.1 s
regardless of the ACC, dEC, AC2 and dE2 settings.
The minimum time between 2 JOG operations is 0.5 seconds.
Parameter which can be accessed in the adjust menu :
- JOG speed
66