Enable/Disable Control Function; Typical Command Configurations; Control From Keyboard/Display Module (Factory Setting) - GE AV-300i User Manual

Commands mon

1.5.2.1 Enable/Disable Control Function

The interaction of the different commands may be affected by a "En/Disable mode" logic function. This
function may provide gating of the enable command with the Start/Stop of Fast Stop commands and the value of
speed. The purpose of this function is to defer actuation of the power bridge to the time the drive is required to
actually start, and terminate the actuation once drive stop has been commanded and the drive has come to a
stop. The operation mode is controlled by parameters En/Disable mode [4004] according to these criteria:
En/Disable mode = "Off" [0]
En/Disable mode = "Stop/ FS & Spd=0" [1]

1.5.3 Typical Command Configurations

1.5.3.1 Control from Keyboard/Display Module (Factory Setting)

Command select = "I O Keys"
The drive comes with a setup meant for control from the keboard/display unit, with the mandatory Terminal
Enable permissive. En/Disable control logic and Jog are active. No input is set for Fast stop command. Param-
eters are set as per following table. The drive behaviour is described below.
At power up, the power converter firing will not be initiated even if Terminal Enable is asserted (driven high).
Once Terminal Enable is asserted, no actuation occurrs until the [I] key is pressed. When [I] key is pressed, the
power converter firing is initiated, Motor magnetization sequence is executed, then Ramp and speed regulation
are unlocked.
When [O] key is pressed, the drive is stopped, and after the programmed delay, power converter firing is
terminated.
Negating Terminal Enable will terminate converter firing at any time, and the motor will coast to a stop.
Ch.1
62
Enable cmd mon
Start cmd mon
FastStop cmd mon
Enable actuation (Power converter firing) is independent from Start/
stop, Fast Stop or Jog commands.
Enable actuation is initiated when the Start/Stop command is asserted
and the Fast stop is not asserted. Enable actuation is terminated after:
Start/Stop is negated OR Fast Stop is asserted, AND
speed feedback has reached the value specified in parameter Spd 0
speed thr [3724], AND
the delay specified in parameter Sped 0 dis delay [4006] has elapsed.
N !
OTE
—————— Function Description ——————
GEH-6641E
to enable again the drive, Fast stop must not be asserted
and the Start/Stop must be recycled