Danfoss AHF 005 User manual

Contents
1 Safety
3
Warnings 3
Symbols used in this manual 3
Operator's safety 3
Avoid filter module damage 3
2 Description 5
Description 5
Ordering numbers, 380 - 415 V, 50 Hz 6
Ordering numbers, 380 - 415 V, 60 Hz 7
Ordering numbers, 440 - 480 V, 60 Hz 8
Ordering numbers, 500 - 525 V, 50 Hz 9
Ordering numbers, 690 V, 50 Hz 10
Calculation of the exact filter size needed 10
3 Specifications 11
General technical data 11
Environmental data 11
Dimensions/weight 12
Dimension diagrams 14
4 Installation 19
Installation 19
Mechanical installation 19
Ventilation 19
Power Wiring 20
Capacitor Disconnect 20
Fuses 21
Over temperature contactor 23
Power wiring size 23
Operation on different mains type 24
Typical installation in a panel or other enclosures 24
5 Commissioning 27
Commissioning 27
6 Appendix: Safety and Application Notes 29
General 29
Application as directed 29
Transport, Storage 29
Installation 29
AHF 005/010 Operating Instructions Contents
MG.80.C1.02 - VLT®is a registered Danfoss trademark 1

Electrical Installation 29
Operation 30
Maintenance and service 30
Contents AHF 005/010 Operating Instructions
2 MG.80.C1.02 - VLT®is a registered Danfoss trademark

1Safety
1.1.1 Warnings
The Danfoss harmonic filter AHF 005 and AHF 010 contain dangerous voltages when connected to mians voltages. Only a competent
electrician should carry out the electrical installation. Improper installation of the filter module or the connected frequency converter
may cause equipment failure, serious injury or death. Follow this manual with National Electrical Codes and local safety codes.
Operation of the harmonic filter is only allowed when the filters housing lid, door or cover is closed.!
1.1.2 Symbols used in this manual
This manual contains different symbols that require special attention. The symbols used are the following:
Warning of hazardous electrical voltage
Warning of a general danger
NB!
This note designates general, useful notes. If you observe it, handling of the filter module / drive system is made easier.
1.1.3 Operator's safety
After mains disconnections, the power terminals X1.1, X1.2, X1.3, X3.1, X3.2, X3.3, X4.1, X4.2 and X4.3 remain live for minimum 4
minutes.
The filter modules have to be installed in a way, that they fulfil their function and don’t expose persons to danger. They have to be
mounted correctly and used in accordance with their purpose.
1.1.4 Avoid filter module damage
1. The filter modules are to be used only with Danfoss frequency converters. The usage with other electrical loads is not permitted and may damage
the devices.
2. Do not use the drive system (frequency converter, motor load and filter module) if the equipment has been damaged.
3. Modifications of the filter modules are not allowed.
AHF 005/010 Operating Instructions 1 Safety
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2 Description AHF 005/010 Operating Instructions
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2Description
2.1.1 Description
The Danfoss harmonic filters AHF 005 and AHF 010 are ensuring near sinusoidal mains current minimising the harmonic current emission into the mains
supply. The Danfoss AHF 005 and AHF 010 are advanced harmonic filters not to be compared with traditional harmonic trap filters. The Danfoss harmonic
filters have been specially designed to match all the Danfoss frequency converters. The filters AHF 010 and AHF 005 are available in four voltage ratings.
• 380 - 415 V AC, 50 Hz
• 380 - 415 V AC, 60 Hz
• 440 - 480 V AC, 60 Hz
• 500 - 525 V AC, 50 Hz
• 690 V AC, 50 Hz
The Danfoss AHF 010 and AHF 005 have the following characteristics:
• Small compact housing that fits into a panel
• Easy to use in retrofit applications
• AHF 010 reduces the total harmonic current distortion to 10%*
•AHF 005 reduces the total harmonic current distortion to 5%*
• Current rating from 10A - 370A
• AHF Filters can be paralleled for higher power modules
• One filter module can be used for several frequency converters
• High efficiency (> 0.98)
• User-friendly commissioning - no adjustment necessary
• No routine maintenance required
*THiD of 10% or 5% will be achieved when the following conditions are met:
-THvD of the system without the drive operating is less than 2%
-Filter is operating at nominal load
If these conditions are not fulfilled, a significant reduction of the harmonic distortion can still be achieved, but the rated THiD values may not be achieved.
The mians quality has to be according to EN61000-2-4 level 3, allowing a max. THuD level of 10%.
Illustration 2.1: Principle connection diagram of the Danfoss harmonic filter.
UL: Mains voltage
IAHF:Input current of the filter AHF
IFC,L: Input current to the frequency converter
IM:Motor current
Table 2.1: Legends (as used throughout this manual):
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2.1.2 Ordering numbers, 380 - 415 V, 50 Hz
IAHF,N Typical Motor Ordering Number Danfoss Frequency converter series *
[AMP] [kW] AHF 005 AHF 010 AQUA, HVAC,
Automation HO Automation NO
10 A 4 175G6600 175G6622 PK37 - P4K
19 A 7,5 175G6601 175G6623 P5K5 - P7K5
26 A 11 175G6602 175G6624 P11K
35 A 18,5 175G6603 175G6625 P15K-P18K P11K-P15K
43 A 22 175G6604 175G6626 P22K P18K
72 A 37 175G6605 175G6627 P30K-P37K P22K-P30K
101 A 55 175G6606 175G6628 P45K-P55K P37K-P45K
144 A 75 175G6607 175G6629 P75K P55K
180 A 90 175G6608 175G6630 P90K P75K
217 A 110 175G6609 175G6631 P110 P90K
289 A 132 175G6610 175G6632 P132 P110
324 A 160 175G6611 175G6633 P160 P132
370 A 200 175G6688 175G6691 P200 P160
506 A 250 175G6609 + 175G6610 175G6631 + 175G6632 P250 P200
578 A 315 2 x 175G6610 2 x 175G6632 P315 P250
648 A 355 2 x 175G6611 2 x 175G6633 P355 P315
Table 2.2: AHF 005 and AHF 010, 380V - 415V, 50Hz
⋆Please note that the matching of the typical Danfoss frequency converter and filter is pre-calculated based on 400V and assuming typical motor
load (4 or 2 pole motor). (FC 300 is based on an 160% torque application, while FC 100 and FC 200 Series are based on 110% torque application.)
The pre-calculated filter current may be different than the input current ratings of FC 100, FC 200 and FC 300 series as stated in the respective
operating instructions, as these numbers are based on different operating conditions.
2 Description AHF 005/010 Operating Instructions
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2.1.3 Ordering numbers, 380 - 415 V, 60 Hz
IAHF,N Typical Motor Ordering Number Danfoss Frequency converter series *
[AMP] [HP] AHF 005 AHF 010 AQUA, HVAC,
Automation HO Automation NO
10 A 6 130B2540 130B2541 PK37-P4K
19 A 10, 15 130B2460 130B2472 P5K5 - P7K5
26 A 20 130B2461 130B2473 P11K
35 A 25, 30 130B2462 130B2474 P15K-P18K P11K-P15K
43 A 40 130B2463 130B2475 P22K P18K
72 A 50, 60 130B2464 130B2476 P30K-P37K P22K-P30K
101 A 75 130B2465 130B2477 P45K-P55K P37K-P45K
144 A 100 130B2466 130B2478 P75K P55K
180 A 125 130B2467 130B2479 P90K P75K
217 A 150 130B2468 130B2480 P110 P90K
289 A 200 130B2469 130B2481 P132 P110
324 A 250 130B2470 130B2482 P160 P132
370 A 300 130B2471 130B2483 P200 P160
506 350 130B2468 + 130B2469 130B2480 + 130B2481 P250 P200
578 A 450 2 x 130B2469 2 x 130B2481 P315 P250
648 A 500 2 x 130B2470 2 x 130B2482 P355 P315
Table 2.3: AHF 005 and AHF 010, 380V - 415V, 50Hz
⋆Please note that the matching of the typical Danfoss frequency converter and filter is pre-calculated based on 400V and assuming typical motor
load (4 or 2 pole motor). (FC 300 is based on an 160% torque application, while FC 100 and FC 200 Series are based on 110% torque application.)
The pre-calculated filter current may be different than the input current ratings of FC 100, FC 200 and FC 300 series as stated in the respective
operating instructions, as these numbers are based on different operating conditions.
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2.1.4 Ordering numbers, 440 - 480 V, 60 Hz
IAHF,N Typical Motor Ordering Number Danfoss Frequency converter series *
[AMP] [HP] AHF 005 AHF 010 AQUA, HVAC,
Automation HO Automation NO
10 A 6 130B2538 130B2539 PK37-P7K5
19 A 10, 15 175G6612 175G6634 P11K
26 A 20 175G6613 175G6635 P15K P11K
35 A 25, 30 175G6614 175G6636 P18K-P22K P15K
43 A 40 175G6615 175G6637 P30K P18K-P22K
72 A 50, 60 175G6616 175G6638 P37K-P45K P30K-P37K
101 A 75 175G6617 175G6639 P55K P45K
144 A 100, 125 175G6618 175G6640 P75K-P90K P55K-P75K
180 A 150 175G6619 175G6641 P110K P90K
217 A 200 175G6620 175G6642 P132 P110
289 A 250 175G6621 175G6643 P160 P132
324 A 300 175G6689 175G6692 P200 P160
370 A 175G6690 175G6693
434 A 350 2 x 175G6620 2 x 175G6642 P250 P200
578 A 450-500 2 x 175G6621 2 x 175G6643 P315-P355 P250-P315
659 A 550-600 175G6690 + 175G6621 175G6693 + 175G6643 P400 P355
Table 2.4: AHF005 and AHF010, 440 - 480 V, 60 Hz
⋆Please note that the matching of the typical Danfoss frequency converter and filter is pre-calculated based on 480V and assuming typical motor
load. FC 300 is based on an 160% torque application, while FC 100 and FC 200 series are based on 110% torque application.
The pre-calculated filter current may be varying from the input current ratings of FC 100, FC 200 and FC 300 series as stated in the respective
operating instructions, as these numbers are based on different operating conditions.
2 Description AHF 005/010 Operating Instructions
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2.1.5 Ordering numbers, 500 - 525 V, 50 Hz
IAHF,N Typical Motor Ordering Number Danfoss Frequency converter series *
[AMP] [kW] AHF 005 AHF 010 AQUA, HVAC,
Automation HO Automation NO
10 A 4, 5.5 175G6644 174G6656 PK75-P5K5
19 A 7.5, 11 175G6645 174G6657 P7K5-P11K
26 A 15, 18.5 175G6646 174G6658 P15K-P18K P11K-P15K
35 A 22 175G6647 174G6659 P22K P18K
43 A 30 175G6648 174G6660 P30K P22K
72 A 37, 45 175G6649 174G6661 P37K-P45K P30K-P37K
101 A 55, 75 175G6650 174G6662 P55K-P75K P45K-P55K
144 A 90, 110 175G6651 174G6663 P90K-P110 P75K-P90K
180 A 132 175G6652 174G6664 P132 P110
217 A 160 175G6653 174G6665 P160 P132
289 A 200 175G6654 174G6666 P200 P160
324 A 250 175G6655 174G6667 P250 P200
370 A 315 2 x 175G6653 2 x 175G6665 P315-P400 P250-P315
506 A 355 175G6652 + 175G6654 175G6664 + 175G6666 P355
578 A 400 2 x 175G6654 2 x 175G6666 P500-P560 P400-P500
Table 2.5: AHF005 and AHF 010, 500-525V, 50 Hz
⋆Please note that the matching of the typical Danfoss frequency converter and filter is pre-calculated based on 500V and assuming typical motor
load. FC 300 is based on an 160% torque application, while FC 100 and FC 200 series are based on 110% torque application.
The pre-calculated filter current may be varying from the input current ratings of FC 100, FC 200 and FC 300 series as stated in the respective
operating instructions, as these numbers are based on different operating conditions.
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2.1.6 Ordering numbers, 690 V, 50 Hz
IAHF,N Typical Motor Ordering Number Danfoss Frequency converter series *
[AMP] [kW] AHF 005 AHF 010 AQUA, HVAC,
Automation HO Automation NO
43 A 37, 45 130B2328 130B2293
72 A 55, 75 130B2330 130B2295 P37K-P45K P37K
101 A 90 130B2331 130B2296 P55-P75K P45K-P55K
144 A 110, 132 130B2333 130B2298 P90K-P110 P75K-P90K
180 A 160 130B2334 130B2299 P132 P110
217 A 200 130B2335 130B2300 P160 P132
289 A 250 130B2331 + 130B2333 130B2301 P200 P160
324 A 315 130B2333 + 130B2334 130B2302 P250 P200
370 A 400 130B23314+ 130B2335 130B2304 P315 P250
Table 2.6: AHF005 and AHF010, 690V, 50 Hz
⋆Please note that the matching of the typical Danfoss frequency converter and filter is pre-calculated based on 690V and assuming typical motor
load. FC 300 is based on an 160% torque application, while FC 100 and FC 200 series are based on 110% torque application.
The pre-calculated filter current may be varying from the input current ratings of FC 100, FC 200 and FC 300 series as stated in the respective
operating instructions, as these numbers are based on different operating conditions.
2.1.7 Calculation of the exact filter size needed
For optimal performance the harmonic filter should be sized for the mains input current to the frequency converter, i.e. the input current drawn based
on the expected load of the frequency converter and not the size of the frequency converter itself!
The mains input current to the frequency converter (IFC,L) can by calculated using the nominal motor current (IM,N) and displacement power factor (Cos
φ)) of the motor. Both data are normally printed on the nameplate of the motor. In the case where the nominal motor voltage (U M,N) is unequal to the
actual mains-mains voltage (UL) the calculated current must be corrected with the ratio between these voltages as shown in the equation below.
IFC
, L
= 1.1 × IM
, N
× Cos
(ϕ)×
((
UM
, N
)/(
UL
))
The harmonic filter chosen must have a nominal current (IAHF,N ) equal to or larger than the calculated frequency converter mains input current (IFC,L).
If several frequency converters are to be connected to the same filter, the harmonic filter must be sized according to the sum of the calculated mains
currents.
If the harmonic filter is sized for the load, and the motor of the corresponding frequency converter is changed, the current must be
re-calculated to avoid overload of the harmonic filter.
2 Description AHF 005/010 Operating Instructions
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3Specifications
3.1.1 General technical data
AHF 0xx AHF 0xx AHF 0xx AHF 0xx AHF 0xx
Nominal supply
voltage
UL,N [V] 380 ≤UL,N ≤ 415 380 ≤UL,N ≤ 415 440 ≤UL,N ≤ 480 500 V 690 V
Tolerance of the ac-
tual supply voltage
UL[V] 342 ≤UL≤ 456 342 ≤UL≤ 456 396 ≤UL≤ 528 450 ≤UL≤ 550 621 ≤UL≤ 759
Supply frequency fL,N[Hz] 50 ± 5 % 60 ± 5 % 60 ± 5 % 50 ± 5 % 50 ± 5 %
Overload capability 1,6 for 60s
Efficiency η[%] ~ 98.8 %
THiD [%] AHF 005 < 5%
AHF 010 < 10%
cos φof IL0.5 cap
0.8 cap
0.85 cap
0.99 cap
1.00
at 25% IAHF,N
at 50% IAHF,N
at 75% IAHF,N
at 100% IAHF,N
at 150% IAHF,N
Power derating [%/C]
[%/m]
40°C < Ta < 55°C => 3%/C
1000m altitude above sea level.< h ≤4000m altitude above sea level => 5%/1000m
NB!
The reduction of the low harmonic current emission to the rated THiD implies, that the THvD of the non-influenced mains voltage is
lower than 2% and the ratio of short circuit power to installed load (R SCE ) is at least 66. Under these conditions the THiD of the mains
current of the frequency converter is reduced to 10% or 5% (typical values at nominal load). If these conditions are not or only partially
fulfilled, a significant reduction of the harmonic components can still be achieved, but the rated THiD values may not be achieved.
3.1.2 Environmental data
Permissible
temperature range*
During transport of the unit:
During storage of the unit:
During operation of the unit:
-25°C...+70°C (to VDE 0160)
-25°C...+55°C (to VDE 0160)
5°C...+40°C without power derating
5°C...+55°C with power derating
Humidity class* Humidity class F without condensation ( 5% - 85% relative humidity)
Installation height h* H ≤1000 m altitude above sea level
1000 m altitude above sea level< h ≤4000 m altitude
above sea level
without power derating
with power derating
Degree of pollution VDE 0110 Part 2 degree 2
Insulation strength Overvoltage category III according to VDE 0110
Packaging DIN 55468 for transport packaging materials
Type of protection IP 20
Approvals CE: Low-Voltage Directive; UL
*climatic conditions according to class 3K3 (EN 50178 Part 6.1)
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3.1.3 Dimensions/weight
The AHF modules are available in seven frame sizes (size B to H).
For dimensions see the drawings on the following pages
AHF 005, 380 – 415 V AC, 50Hz AHF 010, 380– 415 V AC, 50Hz
IAHF,N Frame size Weight IAHF,N Frame size Weight
10 A B20 Kg (44 lbs) 10 A B15 Kg (33 lbs)
19 A C31 Kg (68 lbs) 19 A B19 Kg (42 lbs)
26 A C31 Kg (68 lbs) 26 A B24 Kg (52 lbs)
35 A C49 Kg (108 lbs) 35 A C38 Kg (84 lbs)
43 A D60 Kg (132 lbs) 43 A C45 Kg (99 lbs)
72 A D81 Kg (178 lbs) 72 A D64 Kg (141 lbs)
101 A E128 Kg (282 lbs) 101 A D80 Kg (176 lbs)
144 A E165 Kg (364 lbs) 144 A D101 Kg (222 lbs)
180 A F197 Kg (434 lbs) 180 A E134 Kg (295 lbs)
217 A F228 Kg (503 lbs) 217 A E159 Kg (350 lbs)
289 A G269 Kg (593 lbs) 289 A F180 Kg (396 lbs)
324 A G309 Kg (681 lbs) 324 A F233 Kg (513 lbs)
370 A H345 Kg (760 lbs) 370 A G252 Kg (555 lbs)
AHF 005, 380 – 415 V AC, 60Hz AHF 010, 380 – 415 V AC, 60Hz
IAHF,N Frame size Weight IAHF,N Frame size Weight
10 A B20 kg (44 lbs) 10 A B15 kg (33 lbs)
19 A C32 kg (71 lbs) 19 A B20 kg (44 lbs)
26 A C43 kg (95 lbs) 26 A B25 kg (55 lbs)
35 A C50 kg (110 lbs) 35 A C38 kg (84 lbs)
43 A D60 kg (132 lbs) 43 A C45 kg (99 lbs)
72 A D82 kg (181 lbs) 72 A D64 kg (141 lbs)
101 A E129 kg (284 lbs) 101 A D81 kg (178 lbs)
144 A E167 kg (368 lbs) 144 A D103 kg (227 lbs)
180 A F200 kg (441 lbs) 180 A E135 kg (297 lbs)
217 A F230 kg (507 lbs) 217 A E161 kg (355 lbs)
289 A G272 kg (600 lbs) 289 A F191 kg (421 lbs)
324 A G306 kg (675 lbs) 324 A F232 kg (511 lbs)
370 A H348 kg (767 lbs) 370 A G245 kg (540 lbs)
AHF 005, 440 – 480 V AC, 60Hz AHF 010, 440 – 480 V AC, 60Hz
IAHF,N Frame size Weight IAHF,N Frame size Weight
10 A B20 kg (44 lbs) 10 A B15 kg (33 lbs)
19 A C32 kg (71 lbs) 19 A B20 kg (44 lbs)
26 A C43 kg (95 lbs) 26 A B25 kg (55 lbs)
35 A C50 kg (110 lbs) 35 A C38 kg (84 lbs)
43 A D60 kg (132 lbs) 43 A C45 kg (99 lbs)
72 A D82 kg (181 lbs) 72 A D64 kg (141 lbs)
101 A E129 kg (284 lbs) 101 A D81 kg (178 lbs)
144 A E167 kg (368 lbs) 144 A D103 kg (227 lbs)
180 A F200 kg (441 lbs) 180 A E135 kg (297 lbs)
217 A F230 kg (507 lbs) 217 A E161 kg (355 lbs)
289 A G272 kg (600 lbs) 289 A F191 kg (421 lbs)
324 A G306 kg (675 lbs) 324 A F232 kg (511 lbs)
370 A H348 kg (767 lbs) 370 A G245 kg (540 lbs)
AHF 005, 500 - 525 V AC, 50Hz AHF 010, 500 - 525 V AC, 50Hz
IAHF,N Frame size Weight IAHF,N Frame size Weight
10 A B22 Kg (48 lbs) 10 A B17 Kg (37 lbs)
19 A C35 Kg (77 lbs) 19 A B21 Kg (46 lbs)
26 A C49 Kg (108 lbs) 26 A B28 Kg (62 lbs)
35 A C55 Kg (121 lbs) 35 A C42 Kg (93 lbs)
43 A D67 Kg (147 lbs) 43 A D47 Kg (104 lbs)
72 A E82 Kg (181 lbs) 72 A D69 Kg (152 lbs)
101 A E144 Kg (317 lbs) 101 A D91 Kg (200 lbs)
144 A E187 Kg (412 lbs) 144 A E131 Kg (289 lbs)
180 A F226 Kg (498 lbs) 180 A E147 Kg (324 lbs)
217 A F262 Kg (578 lbs) 217 A F185 Kg (408 lbs)
289 A G309 Kg (681 lbs) 289 A F209 Kg (461 lbs)
324 A G348 Kg (767 lbs) 324 A G256 Kg (564 lbs)
3 Specifications AHF 005/010 Operating Instructions
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AHF 005, 690V AC, 50Hz AHF 010, 690 V AC, 50Hz
IAHF,N Frame size Weight IAHF,N Frame size Weight
43 A D85 kg (187 lbs) 43 A D65 kg (143 lbs)
72 A E100 kg (220 lbs) 72 A D75 kg (165 lbs)
101 A F130 kg (287 lbs) 101 A E95 kg (209 lbs)
144 A G160 kg (353 lbs) 144 A E125 kg (275 lbs)
180 A G200 kg (441 lbs) 180 A F140 kg (309 lbs)
217 A H300 kg (661 lbs) 217 A G180 kg (397 lbs)
289 A G200 kg (441 lbs)
324 A H250 kg (551 lbs)
370 A H300 kg (661 lbs)
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3.1.4 Dimension diagrams
Illustration 3.1: Frame size B
Illustration 3.2: Frame size C
3 Specifications AHF 005/010 Operating Instructions
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Illustration 3.3: Frame size D
Illustration 3.4: Frame size E
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Illustration 3.5: Frame size F
Illustration 3.6: Frame size G
3 Specifications AHF 005/010 Operating Instructions
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Illustration 3.7: Frame size H
Illustration 3.8: Detailed drawing of mounting feet.
NB!
Please allow an additional 30 mm of depth of the filter for the mounting feet.
NB!
Frame E-H only transport the filter vertically, i.e. use lifting hooks on both ends.
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4 Installation AHF 005/010 Operating Instructions
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4Installation
4.1 Installation
4.1.1 Mechanical installation
The encapsulation of the filters have an IP 20 rating. The modules can
be mounted side by side with 60mm (2,36 inches) clearance.
To other components and to the cabinet walls keep a horizontal clearance
of at least 70mm (2,76 inches) and a vertical clearance of at least 150mm
(5,91 inches).
Only vertical installation is allowed (mains terminal at bottom).
For versions with bus bars (frame size E – H) it is nec-
essary to mount the added covers to the connectors in
order to achieve the protection type IP 20.
4.1.2 Ventilation
The filters are cooled by means of air circulation. Consequently, the air needs to be able to move freely above and below the filter module. The efficiency
of the filter modules is greater than 0.98. When installing a filter module in a panel or another enclosure, ensure there is sufficient airflow though the
enclosure to limit heat rise in the enclosure.
AHF 0xx, 380 – 415V,
50 Hz
Max. Heat
AHF 0xx, 380 – 415V,
60 Hz
Max. Heat
AHF 0xx, 440 – 480V,
60 Hz
Max. Heat
AHF 0xx, 500V - 525V,
50 Hz
Max. Heat
AHF 0xx, 690V, 50 Hz
Max. Heat
10 A 83 W 104 W
19 A 158 W 190 W 190 W 197 W
26 A 216 W 259 W 259 W 270 W
35 A 290 W 349 W 349 W 364 W
43 A 358 W 429 W 429 W 447 W 617 W
72 A 599 W 718 W 718 W 748 W 1033 W
101 A 840 W 1008 W 1008 W 1050 W 1448 W
144 A 1197 W 1437 W 1437 W 1496 W 2065 W
180 A 1496 W 1796 W 1796 W 1871 W 2581 W
217 A 1804 W 2165 W 2165 W 2255 W 3112 W
289 A 2403 W 2883 W 2883 W 3003 W 4145 W
324 A 2694 W 3232 W 3232 W 3367 W 4646 W
370 A 3076 W 3691 W 3691 W 5306 W
NB!
If other heat sources (e.g. Danfoss frequency converters) are installed in an enclosure with the harmonic filter AHF 0xx, this heat
generation must also be considered when calculating required airflow
NB!
If the cooling air is polluted (dust, dirt swirl, grease, aggressive gas) the function of the filter module may be impeded. Ensure sufficient
countermeasures, e.g. separate cooling air, mounting of air filters, periodical cleaning.
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4.1.3 Power Wiring
Standard connection
Supply voltage must be connected to the terminals X1.1, X1.2 and X1.3. The frequency converter supply terminals L1, L2 and L3 must be connected to
the filter module terminals X2.1, X2.2 and X2.3.
Paralleling of FC's
If several frequency converters are to be connected to the harmonic filter, the connection is similar to the standard connection - The supply terminals
L1, L2 and L3 of several frequency converters must be connected to the filter module terminals X2.1, X2.2 and X2.3.
NB!
If several FC’s are to be connected to the same filter, the harmonic filter must be sized according to the sum of the calculated input
current to the FC’s.
Paralleling of filters
If the mains input current of the frequency converter exceeds the nominal current of the largest harmonic filter, several harmonic filters can be paralleled
to achieve the necessary rating. Supply voltage must be connected to the terminals X1.1, X1.2 and X1.3 of the filters. The frequency converter supply
terminals L1, L2 and L3 must be connected to the filter modules terminals X2.1, X2.2 and X2.3.
NB!
Filters of different current ratings can be paralleled. The rating of the filter becomes the sum of the individual current ratings.
4.1.4 Capacitor Disconnect
The power factor of the harmonic filter AHF 005/010 is decreasing with decreasing load. At zero load the Power Factor becomes zero and the capacitors
produce approximately 30% leading current compared to the rated current of the filter. The reactive current generated by the filter at partial load is
normally not of any concern, mainly because of the small current compared to the system capacity (max 30%) as well as the fact that other load normally
compensates the capacitive current.
In applications where this reactive current may not be accepted, Terminals X3.1, X3.2, X3.3 and X4.1, X4, X4.3 are giving acces to the filter capacitors.
As default (on delievery) the wiring will shorten Terminal X3.1 with X4.1, X3.2 with X4.2 and X3.3 with X.4.3. In the case of that no capacitor disconnect
is required no changes should be made. If capacitor disconnecet is required a three-phase contactor should be placed between terminals X3 and X4.
Size the contactor and wiring according to below table. It is recommended only to use contactors with damping resistors.
NB!
It is not allowed to use one common 3 poled contactor in several paralleled AHF at once to disconnect the capacitors.
4 Installation AHF 005/010 Operating Instructions
20 MG.80.C1.02 - VLT®is a registered Danfoss trademark
4