Danfoss AC DRIVES Installation guide

UL STANDARDS ON CABLING

To obey the UL (Underwriters Laboratories) regulations, use a UL-approved Class 1 copper wire with a minimum heat resistance of 60 or 75 °C (140 or 167 °F).

You can use the drive on a circuit that gives a maximum of 100 000 rms symmetrical amperes, and a maximum of 600 V, when the drive is protected by Class T and J fuses.

CABLE AND FUSE SIZES, NORTH AMERICA

We recommend the fuse class T (UL & CSA). To make a selection of the fuse voltage rating, refer to the mains. Refer also to local regulations, cable installation conditions and cable specification. Do not use larger fuses than what is recommended.

Make sure that the operation time of the fuse is less than 0.4 seconds. The operation time agrees with the fuse type and the impedance of the supply circuit. For more information on faster fuses, speak to the manufacturer. The manufacturer can also recommend some high speed Class J (UL & CSA ) fuse ranges.

AC DRIVES INSTALLATION IN US AND CANADA

QUICK GUIDE

The dimensions of the cables must agree with the requirements of the National Electric Code (NEC) and the Canadian Electric Code (CEC).

The cables must be PVC-isolated.

•

The maximum ambient temperature is +86 °F.

•

The maximum temperature of the cable surface is +158 °F.

•

Use only cables with a concentric copper shield.

•

The maximum number of parallel cables is 9.

•

When you use parallel cables, make sure that you obey the requirements of the crosssectional area and the maximum number of cables.

For important information on the requirements of the grounding conductor, see the NEC and CEC.

For the correction factors for each temperature, see the instructions of the NEC and CEC.

The technical data of the AC drive

The solid state short circuit protection does not supply protection for the branch circuit of the of the AC drive. To supply the branch circuit protection, refer to the National Electric Code and the local regulations. Do not use other devices than fuses to supply branch circuit protection.

Technical item or function Technical data

208-240V, 380-500V, 525-600V, 525-690V, -10%…+10%

Mains types: TN, TT, and IT

•

Short circuit current: the maximum short circuit

•

current must be < 100 kA.

: Ambient temperature max. +40 °C overload 1.1 x I

(1 min/10 min) I

: Ambient temperature max. +50 °C overload 1.5 x I

(1 min/10 min)

in 600/690 V drives: Ambient temperature max. +40

°C overload 1.5 x I

Mains connection

Motor connection

Input voltage U

Input frequency 50-60 Hz, -5...+10%

Connection to mains Once per minute or less

Starting delay 6 s (MR4 to MR6), 8 s (MR7 to MR9)

Mains

Output voltage 0-U

Continuous output current

Output frequency 0-320 Hz (standard)

Frequency resolution 0.01 Hz

(1 min/10 min)

Technical item or function Technical data

Overvoltage trip limit

Undervoltage trip limit Depends on mains voltage (0.8775 x mains voltage):

Earth fault protection Yes

Protections

Mains supervision Yes

Motor phase supervision Yes

Overcurrent protection Yes

Unit overtemp. protection Yes

Motor overload protection Yes. * The motor overload protection activates at 110%

Motor stall protection Yes

Mains voltage 240 V: 456 VDC Mains voltage 500 V: 911 VDC Mains voltage 600 V: 1094 VDC Mains voltage 690 V: 1258 VDC

Mains voltage 240 V: trip limit 211 VDC Mains voltage 400 V: trip limit 351 VDC Mains voltage 500 V: trip limit 438 VDC Mains voltage 525 V: trip limit 461 VDC Mains voltage 600 V: trip limit 527 VDC Mains voltage 690 V: trip limit 606 VDC

of the full load current.

* = For the motor thermal memory and the memory retention function to obey the UL 61800-5-1 requirements, you must use the system software version FW0072V007 or a newer version. If you use an older system software version, you must install a motor overtemperature protection to obey the UL regulations.

Motor underload protection Yes

Short-circuit protection of +24 V and +10 V reference voltages

Yes

The cable and fuse sizes in North America, mains voltage 208-240 V and 380-500 V

The cable and fuse sizes in North America, mains voltage 525-600 V

Frame Type IL [A] Fuse

(Class T/J) [A]

0003 2 / 0003 5 3.7 / 3.4 6 14 24-10 17-10 0004 2 / 0004 5 4.8 6 14 24-10 17-10

MR4

MR5

MR6

MR7

MR8

MR9

0006 2 / 0005 5 6.6 / 5.6 10 14 24-10 17-10 0008 2 / 0008 5 8.0 10 14 24-10 17-10 0011 2 / 0009 5 11.0 / 9.6 15 14 24-10 17-10 0012 2 / 0012 5 12.5 / 12.0 20 14 24-10 17-10 0018 2 / 0016 5 18.0 / 16.0 25 10 20-5 17-8 0024 2 / 0023 5 24.0 / 23.0 30 10 20-5 17-8 0031 2 / 0031 5 31.0 40 8 20-5 17-8

0038 5 38.0 50 4 13-0 13-2 0048 2 / 0046 5 48.0 / 46.0 60 4 13-0 13-2

0062 2 / 0061 5 ** 62.0 / 61.0 80 4 13-0 13-2 0075 2 / 0072 5 75.0 / 72.0 100 2 9-2/0 0088 2 / 0087 5 88.0 / 87.0 110 1 9-2/0 0105 2 / 0105 5 0140 2 / 0140 5 0170 2 / 0170 5 0205 2 / 0205 5 205.0 40 350 kcmil 0261 2 / 0261 5 261.0 60 2x250 kcmil

0310 2 / 0310 5 310.0 80 2x350 kcmil

105.0

140.0

170.0

150 1/0 9-2/0 25 3/0 30 250 kcmil

Mains, motor and brake resistor* cable Cu [AWG]

Terminal cable size

Mains cable terminal [AWG]

1 AWG-350 kcmil 1 AWG-350 kcmil 1 AWG-350 kcmil 1 AWG-350 kcmil 1 AWG-350 kcmil

Grounding terminal [AWG]

9-2/0 9-2/0 9-2/0

1 AWG-350 kcmil 1 AWG-350 kcmil 1 AWG-350 kcmil 1 AWG-350 kcmil 1 AWG-350 kcmil

* = If you use a multi-conductor cable, 1 of the conductors of the brake resistor cable stays unconnected. It is also possible to use a single cable if you obey the minimum cross-sectional area of the cable. ** = To obey the UL regulations with the 500 V drive, it is necessary to have cables with a + 90 °C (+194 °F) heat resistance.

Frame Type IL [A] Fuse

(Class T/J) [A]

0004 6 3.9 6 14 20-5 17-8

MR5 (600V)

MR6

MR7 0052 6 / 0052 7 52.0 60 6 9-2/0 9-2/0

MR8

MR9

0006 6 6.1 10 14 20-5 17-8 0009 6 9.0 10 14 20-5 17-8 0011 6 11.0 15 14 20-5 17-8 0007 7 7.5 10 12 13-0 13-2 0010 7 10.0 15 12 13-0 13-2 0013 7 13.5 20 12 13-0 13-2 0018 6 / 0018 7 18.0 20 10 13-0 13-2

0022 6 / 0022 7 22.0 25 10 13-0 13-2 0027 7 / 0027 7 27.0 30 8 13-0 13-2 0034 6 / 0034 7 34.0 40 8 13-0 13-2

0041 6 / 0041 7 41.0 50 6 9-2/0 9-2/0

0062 6 / 0062 7 62.0 70 4 9-2/0 9-2/0 0080 6 / 0080 7 80.0 90 1/0 0100 6 / 0100 7 100.0 110 1/0 0125 6 / 0125 7

0144 6 / 0144 7

0170 7 170.0 200 4/0 0208 6 / 0208 7

125.0

144.0 175

208.0 250 300 kcmil

150 2/0

Mains, motor and brake resistor* cable Cu [AWG]

3/0 1 AWG-350 kcmil

Terminal cable size

Mains cable terminal [AWG]

1 AWG-350 kcmil 1 AWG-350 kcmil 1 AWG-350 kcmil

1 AWG-350 kcmil 1 AWG-350 kcmil

Grounding terminal [AWG]

1 AWG-350 kcmil 1 AWG-350 kcmil 1 AWG-350 kcmil

1 AWG-350 kcmil

1 AWG-350 kcmil 1 AWG-350 kcmil

The tightening torques of the terminals

Tightening torque: the mains cable and motor

Frame Type

MR4

MR5

MR6

MR7

MR8

MR9

0003 2 - 0012 2 0003 5 - 0012 5

0018 2 - 0031 2 0016 5 - 0031 5 0004 6 - 0011 6

0048 2 - 0062 2 0038 5 - 0061 5 0018 6 - 0034 6 0007 7 - 0034 7

0075 2 - 0105 2 0072 5 - 0105 5 0041 6 - 0062 6 0041 7 - 0062 7

0140 2 - 0205 2 0140 5 - 0205 5 0080 6 - 0125 6 0080 7 - 0125 7

0261 2 - 0310 2 0261 5 - 0310 5 0144 6 - 0208 6 0144 7 - 0208 7

cable terminals

Nm lb-in. Nm lb-in. Nm lb-in.

0.5-0.6 4.5-5.3 1.5 13.3 2.0 17.7

1.2-1.5 10.6-13.3 1.5 13.3 2.0 17.7

10 88.5 1.5 13.3 2.0 17.7

8 * / 5.6 **

30 266 1.5 13.3 20 177

40 266 1.5 13.3 20 177

70.8 * /

49.6 **

Tightening torque: the grounding clamps for cable shield

1.5 13.3 8 * / 5.6 **

Tightening torque: the grounding clamps for grounding conductor

70.8 * /

49.6 **

* = The tightening torque for a torx screw. ** = The tightening torque for an Allen screw.