Danfoss VLT Programming Guide

5.1.19 21-** Ext. Closed Loop
Par.
No. #
Parameter description Default value 4-set-up Change dur-
ing operation
Conver-
sion index
Type
21-0* Ext. CL Autotuning
21-00 Closed Loop Type [0] Auto 2 set-ups TRUE - Uint8
21-01 PID Performance [0] Normal 2 set-ups TRUE - Uint8
21-02 PID Output Change 0.10 N/A 2 set-ups TRUE -2 Uint16
21-03 Minimum Feedback Level -999999.000 N/A 2 set-ups TRUE -3 Int32
21-04 Maximum Feedback Level 999999.000 N/A 2 set-ups TRUE -3 Int32
21-09 PID Autotuning [0] Disabled All set-ups TRUE - Uint8
21-1* Ext. CL 1 Ref./Fb.
21-10 Ext. 1 Ref./Feedback Unit [1] % All set-ups TRUE - Uint8
21-11 Ext. 1 Minimum Reference 0.000 ExtPID1Unit All set-ups TRUE -3 Int32
21-12 Ext. 1 Maximum Reference 100.000 ExtPID1Unit All set-ups TRUE -3 Int32
21-13 Ext. 1 Reference Source [0] No function All set-ups TRUE - Uint8
21-14 Ext. 1 Feedback Source [0] No function All set-ups TRUE - Uint8
21-15 Ext. 1 Setpoint 0.000 ExtPID1Unit All set-ups TRUE -3 Int32
21-17 Ext. 1 Reference [Unit] 0.000 ExtPID1Unit All set-ups TRUE -3 Int32
21-18 Ext. 1 Feedback [Unit] 0.000 ExtPID1Unit All set-ups TRUE -3 Int32
21-19 Ext. 1 Output [%] 0 % All set-ups TRUE 0 Int32
21-2* Ext. CL 1 PID
21-20 Ext. 1 Normal/Inverse Control [0] Normal All set-ups TRUE - Uint8
21-21 Ext. 1 Proportional Gain 0.01 N/A All set-ups TRUE -2 Uint16
21-22 Ext. 1 Integral Time 10000.00 s All set-ups TRUE -2 Uint32
21-23 Ext. 1 Differentation Time 0.00 s All set-ups TRUE -2 Uint16
21-24 Ext. 1 Dif. Gain Limit 5.0 N/A All set-ups TRUE -1 Uint16
21-3* Ext. CL 2 Ref./Fb.
21-30 Ext. 2 Ref./Feedback Unit [1] % All set-ups TRUE - Uint8
21-31 Ext. 2 Minimum Reference 0.000 ExtPID2Unit All set-ups TRUE -3 Int32
21-32 Ext. 2 Maximum Reference 100.000 ExtPID2Unit All set-ups TRUE -3 Int32
21-33 Ext. 2 Reference Source [0] No function All set-ups TRUE - Uint8
21-34 Ext. 2 Feedback Source [0] No function All set-ups TRUE - Uint8
21-35 Ext. 2 Setpoint 0.000 ExtPID2Unit All set-ups TRUE -3 Int32
21-37 Ext. 2 Reference [Unit] 0.000 ExtPID2Unit All set-ups TRUE -3 Int32
21-38 Ext. 2 Feedback [Unit] 0.000 ExtPID2Unit All set-ups TRUE -3 Int32
21-39 Ext. 2 Output [%] 0 % All set-ups TRUE 0 Int32
21-4* Ext. CL 2 PID
21-40 Ext. 2 Normal/Inverse Control [0] Normal All set-ups TRUE - Uint8
21-41 Ext. 2 Proportional Gain 0.01 N/A All set-ups TRUE -2 Uint16
21-42 Ext. 2 Integral Time 10000.00 s All set-ups TRUE -2 Uint32
21-43 Ext. 2 Differentation Time 0.00 s All set-ups TRUE -2 Uint16
21-44 Ext. 2 Dif. Gain Limit 5.0 N/A All set-ups TRUE -1 Uint16
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®
HVAC Drive Programming Guide 5 Parameter Lists
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5

Danfoss VLT Specifications

General

Frequency	50/60 Hz
Enclosure	IP20, IP21, IP55, IP66
Series	VLT
Control Technique	Flux Vector Control
Output Voltage	0-Vinput
Control Method	Fieldbus
Communication Interface	PROFIBUS, CANopen
Protection Features	Overload, Overvoltage, Undervoltage, Short Circuit, Ground Fault
Cooling Method	Liquid Cooled
Storage Temperature	-25°C to +70°C
Relative Humidity	5-95% non-condensing
Altitude	Up to 1000m (3280ft) without derating, up to 4000m (13120ft) with derating
Operating Temperature	-10°C to +50°C (14°F to 122°F)