Danfoss VLT HVAC User Manual

Par. No. # Parameter description Default value 4-set-up Change during
operation
Conver-
sion index
Type
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
21-5* Ext. CL 3 Ref./Fb. 21-50 Ext. 3 Ref./Feedback Unit [1] % All set-ups TRUE - Uint8 21-51 Ext. 3 Minimum Reference 0.000 ExtPID3Unit All set-ups TRUE -3 Int32
21-52 Ext. 3 Maximum Reference 100.000 ExtPID3Unit All set-ups TRUE -3 Int32
21-53 Ext. 3 Reference Source [0] No function All set-ups TRUE - Uint8
21-54 Ext. 3 Feedback Source [0] No function All set-ups TRUE - Uint8
21-55 Ext. 3 Setpoint 0.000 ExtPID3Unit All set-ups TRUE -3 Int32
21-57 Ext. 3 Reference [Unit] 0.000 ExtPID3Unit All set-ups TRUE -3 Int32
21-58 Ext. 3 Feedback [Unit] 0.000 ExtPID3Unit All set-ups TRUE -3 Int32
21-59 Ext. 3 Output [%] 0 % All set-ups TRUE 0 Int32
6.2.18. 21-** Ext. Closed Loop
VLT
®
HVAC Drive Operating Instructions 6. How to programme the frequency converter
MG.11.A4.02 - 09.10.06. VLT
®
is a registered Danfoss trademark 111
6

Danfoss VLT HVAC Specifications

General

Enclosure Rating	IP20, IP21, IP54, IP55, IP66
Storage Temperature Range	-25°C to +70°C
Output Voltage Range	0-100% of supply voltage
Communication Protocols	Modbus RTU, BACnet, Ethernet/IP, Profibus DP
Ambient Temperature Range	-10°C to +50°C (without derating)
Relative Humidity	5% to 95% non-condensing
Altitude	Up to 1000 m without derating
Cooling Method	Air cooled
Application	HVAC systems, Pumps, Fans, Compressors
Voltage Range	200-240 V, 380-500 V, 525-600 V
Frequency Range	0 Hz to 590 Hz