"PowerFlex 700S变频器Phase I控制说明书"

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1-2 Installation/Wiring

Opening the Cover

Mounting Clearances

Esc

7 8 9

4 5 6

1 2 3

0 +/-

Sel

Jog

Alt

Exp

Param #

S.M.A.R.T.

Exit

Lang

Auto / Man

Remove

DRIVE

SYNCHLINK

ENABLE

Opening Control Assembly

Step Description

Loosen captive screw.

Push down on cover.

Pull cover away from assembly.

Frames 1-4

Locate the slot in the upper left corner.

Slide the locking tab up and swing the

cover open. Special hinges allow cover to

move away from drive and lay on top of

adjacent drive (if present). See page 1-8

for frame 4 access panel removal.

Frame 5

Slide the locking tab up, loosen the

right-hand cover screw and remove. See

page 1-8

for access panel removal.

Frame 6

Loosen 2 screws at bottom of drive cover.

Carefully slide bottom cover down and

out. Loosen the 2 screws at top of cover

and remove.

Frames 1-6

101.6mm

(4.0 in.)

101.6mm

(4.0 in.)

101.6mm

(4.0 in.)

101.6mm

(4.0 in.)

50.8mm (2.0 in)

Refer to the PowerFlex Reference

Manual Vol . 2 for detailed

dimension information

With Adhesive Label

(see below)

No Adhesive Label

(see below)

Frames 1-6

Installation/Wiring 1-3

Operating Temperatures

PowerFlex 700S drives are designed to operate in surrounding air

temperature of 0° to 40° C. To operate the drive in installations with

surrounding air temperature between 41° and 50° C, remove the adhesive

label affixed to the top of the drive enclosure.

Table 1.A Acceptable Surrounding Air Temperature & Required Actions

Important: Removing the adhesive label from the drive changes the NEMA

enclosure rating from Type 1 to Open type.

AC Supply Source

Considerations

PowerFlex drives are suitable for use on a circuit capable of delivering up to

a maximum of 200,000 rms symmetrical amperes, 600 volts with

recommended fuses/circuit breakers. Refer to the PowerFlex Reference

Manual Vol. 2 for actual interrupt ratings based on circuit breaker or fuse

choice.

If a Residual Current Detector (RCD) is used as a system ground fault

monitor, only Type B (adjustable) devices should be used to avoid nuisance

tripping.

Unbalanced or Ungrounded Distribution Systems

If phase to ground voltage will exceed 125% of normal or the supply system

is ungrounded, refer to the Wiring and Grounding Guidelines for PWM

Drives for more information.

Drive Catalog Number

Required Action . . .

IP 20, NEMA

Type 1

IP 20, NEMA Type

Open

IP 00, NEMA

Type Open

No Action Required Remove Top Label Remove Top Label &

Ven t Pl ate

(1)

To remove vent plate (see page A-20 for location), lift top edge of plate from the chassis. Rotate the plate out

from the back plate.

All Except 20BC072 40° C50° CNA

20BC072 40° C45° C50° C

ATTENTION: To guard against personal injury and/or

equipment damage caused by improper fusing or circuit breaker

selection, use only the recommended line fuses/circuit breakers

specified in Appendix

ATTENTION: PowerFlex 700S drives contain protective MOVs

and common mode capacitors that are referenced to ground.

These devices should be disconnected if the drive is installed on

an ungrounded distribution system. See page page 1-18

for

jumper locations.

1-4 Installation/Wiring

Input Power Conditioning

Certain events on the power system supplying a drive can cause component

damage or shortened product life. These conditions are divided into 2 basic

categories:

1. All Drives

– The power system has power factor correction capacitors switched in

and out of the system, either by the user or by the power company.

– The power source has intermittent voltage spikes in excess of 6000

volts. These spikes could be caused by other equipment on the line or

by events such as lightning strikes.

– The power source has frequent interruptions.

2. 5 HP or Less Drives (in addition to “1” above)

– The nearest supply transformer is larger than 100kVA or the available

short circuit (fault) current is greater than 100,000A.

– The impedance in front of the drive is less than 0.5%.

If any or all of these conditions exist, it is recommended that the user install

a minimum amount of impedance between the drive and the source. This

impedance could come from the supply transformer itself, the cable

between the transformer and drive or an additional transformer or reactor.

The impedance can be calculated using the information supplied in either

the PowerFlex Reference Manual Vol. 2 or the technical document Wiring

and Grounding Guidelines, publication DRIVES-IN001.

Grounding Requirements

The drive Safety Ground-PE must be connected to system ground.

Ground impedance must conform to the requirements of national and local

industrial safety regulations and/or electrical codes. The integrity of all

ground connections should be periodically checked.

Recommended Grounding Scheme

A single point (PE only) grounding scheme should be used. Some

applications may require alternate grounding schemes, refer to the Wiring

and Grounding Guidelines for PWM AC Drives, publication number

DRIVES-IN001 for more information. These applications include

installations with long distances between drives or drive line-ups, which

could cause large potential differences between the drive or line-up grounds.

For installations within a cabinet, a single safety ground point or ground bus

bar connected directly to building steel should be used. All circuits

including the AC input ground conductor should be grounded

independently and directly to this point/bar.

1-6 Installation/Wiring

Power Wiring

Power Cable Types Acceptable for 200-600 Volt Installations

A variety of cable types are acceptable for drive installations. For many

installations, unshielded cable is adequate, provided it can be separated

from sensitive circuits. As an approximate guide, allow a spacing of 0.3

meters (1 foot) for every 10 meters (32.8 feet) of length. In all cases, long

parallel runs must be avoided. Do not use cable with an insulation thickness

less than or equal to 15 mils (0.4mm/0.015 in.). Use copper wire only. Wire

gauge requirements and recommendations are based on 75° C. Do not

reduce wire gauge when using higher temperature wire.

Unshielded

THHN, THWN or similar wire is acceptable for drive installation in dry

environments provided adequate free air space and/or conduit fill rates

limits are provided. Do not use THHN or similarly coated wire in wet

areas. Any wire chosen must have a minimum insulation thickness of 15

Mils and should not have large variations in insulation concentricity.

Shielded/Armored Cable

Shielded cable contains all of the general benefits of multi-conductor cable

with the added benefit of a copper braided shield that can contain much of

the noise generated by a typical AC Drive. Strong consideration for shielded

cable should be given in installations with sensitive equipment such as

weigh scales, capacitive proximity switches and other devices that may be

affected by electrical noise in the distribution system. Applications with

large numbers of drives in a similar location, imposed EMC regulations or a

high degree of communications/networking are also good candidates for

shielded cable.

Shielded cable may also help reduce shaft voltage and induced bearing

currents for some applications. In addition, the increased impedance of

shielded cable may help extend the distance the motor can be located from

the drive without the addition of motor protective devices such as terminator

networks. Refer to Reflected Wave in Wiring and Grounding Guidelines for

PWM AC Drives, publication DRIVES-IN001.

Consideration should be given to all of the general specifications dictated by

the environment of the installation, including temperature, flexibility,

moisture characteristics and chemical resistance. In addition, a braided

shield should be included and specified by the cable manufacturer as having

coverage of at least 75%. An additional foil shield can be greatly improve

noise containment.

ATTENTION: National Codes and standards (NEC, BSI etc.)

and local codes outline provisions for safely installing electrical

equipment. Installation must comply with specifications

regarding wire types, conductor sizes, branch circuit protection

and disconnect devices. Failure to do so may result in personal

injury and/or equipment damage.

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