150 • Chapter 7 - Parameters Description AGy-EV Instruction manual
P.005 Stop Key Mode
Stop key configuration.
RUN/STOP
from programmed
source
STOP KEY
Motor Speed
Alarm Reset
Alarm Signal
Figure 7.6.6: Stop Key Mode sequences
P.000=0 (default configuration) main commands are coming from keypad. Therefore, the STOP key will cause
a normal stop of the motor.
P.000≠0 and P.005 = 0, pressing the STOP key will have no effect.
P.000>0 and P.005 = 1
Pressing the Stop key, the motor will execute an emergency stop, following the ramp programmed by F.206.
After the speed reaches the value zero, the drive will trip with the dedicated alarm “EMS“. An alarm reset will be
needed to restore drive operations (see paragraph 9.2).
Code LCD display [Code] & LCD select. Default MIN MAX Unit Variation IPA
P.000 Cmd source sel [0] Keypad 0 0 4 400
[1] Terminals
[2] Virtual
[3] Serial
[4] Control word
P.001 RUN input config [0] Run / Rev 0 0 2 401
[1] Fwd / Rev
[2] 3-Wires
P.002 Reversal enable [0] Disable 1 0 1 402
[1] Enable
P.003 Safety [0] OFF 1 0 1 403
[1] ON
P.004 Stop mode [0] Ramp to stop 0 0 1 493
[1] Coast to stop
P.005 Stop Key Mode [0] Inactive 1 0 1 496
[1] EmcStop&Al
Control Mode
P.010 Control mode (Drive control mode)
AGy can operate either in open loop or closed loop speed control mode.
Open loop speed control is set as default, and does not require speed feedback. The natural variation in speed
of the induction machine caused by the load, known as slip, can be compensated for by enabling the slip
compensation function (see description of P.100).
Closed loop speed control requires speed measurement from a digital encoder coupled to the motor shaft. The
optional card EXP-ENC-AGY is needed in order to read the encoder signals. The speed detected by the encoder is
fed back to a PI speed controller that regulates the inverter output frequency in order to keep the actual motor
speed under control. See Chapter 7, section “Closed loop speed control”, for a complete description of the speed
regulator.
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