Lenze 8400 motec - Manual (Page 451)

Lenze · 8400 motec · Reference manual · DMS 4.1 EN · 08/2013 · TD05 451
12 Function library
12.3 L_PCTRL_1
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Outputs
nAct_a
INT
Speed or actual sensor value (actual process value)
• Scaling: 16384 ≡ 100 %
• Internal limitation to ± 199.9 %
• Display parameter: C00830/6
bIOff
BOOL
Switch off the I-component of the process controller
• Changes can be done online.
• Display parameter: C00833/12
TRUE I-component of the process controller is switched off.
bInAct
BOOL
(from version 04.00.00)
Deactivate process controller temporarily (stop)
• Changes can be done online.
• Display parameter: C00833/11
TRUE • The current output value is frozen.
• The internal control algorithm is stopped.
• However, a setpoint selected via input nNSet_a is still provided in
operating modes 0/1/4/5.
bPIDOff
BOOL
(from version 04.00.00)
Reset the entire PID controller
• Display parameter: C00833/41
TRUE • The I component of the controller is set to zero.
• The controller output is set to zero.
• The internal control algorithm is stopped.
nInflu_a
INT
Limitation of the influencing factor in percent
• nInflu_a serves to limit the influencing factor of the PID controller contained in
the FB to a required value (- 199.9 % ... + 199.9 %).
• Scaling: 16384 ≡ 100 %
• Internal limitation to ± 199.9 %
• Display parameter: C00830/9
bEnableInfluenceRamp
BOOL
Activate ramp for influencing factor
• Display parameter: C00833/13
TRUE Influencing factor of the PID controller is ramped up to the nInflu_a
value.
FALSE Influencing factor of the PID controller is ramped down to "0".
Identifier
Data type
Value/meaning
nOut_a
INT
Output signal
• Internal limitation to ±32767 (±199.9 %)
• Scaling: 16384 ≡ 100 %
bActEqSet
INT
Status output "Setpoint and actual value are identical"
TRUE Setpoint and actual value are identical, i.e. no system deviation
available.
nPIDOut1_a
INT
PID controller output without influencing factor nInflu_a
• The inputs bEnableInfluenceRamp and nInflu_a do not have any effect here, the
limited PID output value influenced by the internal ramp times is output.
• There is no connection with the additive input nNSet_a.
• Scaling: 16384 ≡ 100 %
nPIDOut2_a
INT
PID controller output with influencing factor nInflu_a
• There is no connection with the additive input nNSet_a.
• Scaling: 16384 ≡ 100 %
• Display parameter: C00245
nInfluenceOut_a
INT
Current influencing factor ("ramp status") on the PID output value
• Scaling: 16384 ≡ 100 %
Identifier
Data type
Information/possible settings