Danfoss VLT FC 102 Programming Manual page 192

Parameter Descriptions
21-09 PID Autotuning
Option:
3 3
[0] Disabled
*
[1] Enabled Ext
CL1 PID
[2] Enabled Ext
CL 2 PID
[3] Enabled Ext
CL 3 PID
3.19.2 21-1* Closed Loop 1 Ref/Feedback
External
Reference
P 21-13
Feedback
P 21-14
Illustration 3.55 Closed-loop 1 Ref/Feedback
21-10 Ext. 1 Ref./Feedback Unit
Option:
[0] None
[1] %
*
[5] PPM
[10] 1/min
[11] RPM
[12] Pulse/s
[20] l/s
[21] l/min
[22] l/h
190
VLT
Function:
This parameter enables selection of
the extended PID controller to be
auto-tuned and starts the PID auto-
tuning for that controller. Once the
auto-tuning has successfully
completed and the settings have
been accepted or rejected by
pressing [OK] or [Cancel] at the end
of tuning, this parameter is reset to
[0] Disabled.
FC
Ext.
Set
Closed
point
Loop
controller
P 21-15
1
MCB101
Function:
Select the unit for the reference
and feedback.
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®
HVAC Drive FC 102
21-10 Ext. 1 Ref./Feedback Unit
Option:
[23]
[24]
[25]
[30]
[31]
[32]
[33]
[34]
[40]
[41]
[45]
[60]
[70]
[71]
[72]
[73]
[74]
[75]
[80]
[120]
[121]
[122]
[123]
[124]
[125]
Output
[126]
Signal
[127]
P 6-50
[130]
[131]
[132]
[140]
[141]
[145]
Output
Signal
[160]
P 6-60 [170]
[171]
[172]
[173]
[174]
[180]
21-11 Ext. 1 Minimum Reference
Range:
0
ExtPID1Uni
t
*
Function:
m³/s
m³/min
m³/h
kg/s
kg/min
kg/h
t/min
t/h
m/s
m/min
m
°C
mbar
bar
Pa
kPa
m WG
mm Hg
kW
GPM
gal/s
gal/min
gal/h
CFM
ft³/s
ft³/min
ft³/h
lb/s
lb/min
lb/h
ft/s
ft/min
ft
°F
psi
lb/in²
in WG
ft WG
in Hg
HP
Function:
[ -999999.999 Select the minimum reference for
- par. 21-12 the closed-loop 1 controller.
ExtPID1Unit]
M0010001