Ground Leakage; Emc (Electromagnetic Compatibility); Table 4-13 Unidrive Sp And Emc Filter Cross Reference - Emerson unidrive sp User Manual

Universal variable speed ac drive for induction and servo motors model sizes 0 to 6
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Safety
Product
Mechanical
Information
Information
Installation
4.10

Ground leakage

The ground leakage current depends upon whether the internal EMC
filter is installed. The drive is supplied with the filter installed. Instructions
for removing the internal filter are given in Figure 4-23 Removal of
internal EMC filter (size 1 to 3) and Figure 4-24 Removal of internal EMC
filter (sizes 4 to 6) on page 84.
With internal filter installed:
Size 0:
12mA* AC at 400V 50Hz
30µA DC with a 600V DC bus (10MΩ)
Size 1 to 3: 28mA* AC at 400V 50Hz
30µA DC with a 600V DC bus (10MΩ)
Size 4 to 6: 56mA* AC at 400V 50Hz
18µA DC with a 600V DC bus (33MΩ)
* Proportional to the supply voltage and frequency.
With internal filter removed:
<1mA
Note that in both cases there is an internal voltage surge protection
device connected to ground. Under normal circumstances this carries
negligible current.
When the internal filter is installed the leakage current is
high. In this case a permanent fixed ground connection must
be provided, or other suitable measures taken to prevent a
safety hazard occurring if the connection is lost.
WARNING
4.10.1
Use of residual current device (RCD)
There are three common types of ELCB / RCD:
1. AC - detects AC fault currents
2. A - detects AC and pulsating DC fault currents (provided the DC
current reaches zero at least once every half cycle)
3. B - detects AC, pulsating DC and smooth DC fault currents
Type AC should never be used with drives.
Type A can only be used with single phase drives
Type B must be used with three phase drives
Only type B ELCB / RCD are suitable for use with 3 phase
inverter drives.
WARNING
If an external EMC filter is used, a delay of at least 50ms should be
incorporated to ensure spurious trips are not seen. The leakage current
is likely to exceed the trip level if all of the phases are not energized
simultaneously.
4.11

EMC (Electromagnetic compatibility)

The requirements for EMC are divided into three levels in the following
three sections:
Section 4.11.3, General requirements for all applications, to ensure
reliable operation of the drive and minimise the risk of disturbing nearby
equipment. The immunity standards specified in section 11 will be met,
but no specific emission standards. Note also the special requirements
given in Surge immunity of control circuits - long cables and connections
outside a building on page 89 for increased surge immunity of control
circuits where control wiring is extended.
Section 4.11.4, Requirements for meeting the EMC standard for
power drive systems, IEC61800-3 (EN61800-3).
Section 4.11.5, Requirements for meeting the generic emission
standards for the industrial environment, IEC61000-6-4, EN61000-6-4,
EN50081-2.
Unidrive SP User Guide
Issue Number: 13
Electrical
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The recommendations of section 4.11.3 will usually be sufficient to avoid
causing disturbance to adjacent equipment of industrial quality. If
particularly sensitive equipment is to be used nearby, or in a non-
industrial environment, then the recommendations of section 4.11.4 or
section 4.11.5 should be followed to give reduced radio-frequency
emission.
In order to ensure the installation meets the various emission standards
described in:
The EMC data sheet available from the supplier of the drive
The Declaration of Conformity at the front of this manual
Chapter 12 Technical Data on page 265
The correct external EMC filter must be used and all of the guidelines in
section 4.11.3 General requirements for EMC and section
4.11.5 Compliance with generic emission standards must be followed.

Table 4-13 Unidrive SP and EMC filter cross reference

Drive
SP0201 to SP0205 (1 phase)
SP0201 to SP0205 (3 phase)
SP1201 to SP1202
SP1203 to SP1204
SP2201 to SP2203
SP3201 to SP3202
SP4201 to SP4203
SP5201 to SP5202
SP0401 to SP0405
SP1401 to SP1404
SP1405 to SP1406
SP2401 to SP2404
SP3401 to SP3403
SP4401 to SP4403
SP5401 to SP5402
SP6401 to SP6402
SP3501 to SP3507
SP4601 to SP4606
SP5601 to SP5602
SP6601 to SP6602
High ground leakage current
When an EMC filter is used, a permanent fixed ground
connection must be provided which does not pass through a
connector or flexible power cord. This includes the internal
WARNING
EMC filter.
N
NOTE
The installer of the drive is responsible for ensuring compliance with the
EMC regulations that apply where the drive is to be used.
4.11.1
Grounding hardware
The drive is supplied with a grounding bracket, and sizes 1 to 3 with a
grounding clamp, to facilitate EMC compliance. They provide a
convenient method for direct grounding of cable shields without the use
of "pig-tails". Cable shields can be bared and clamped to the grounding
bracket using metal clips or clamps
that the shield must in all cases be continued through the clamp to the
intended terminal on the drive, in accordance with the connection details
for the specific signal.
1
A suitable clamp is the Phoenix DIN rail mounted SK14 cable clamp
(for cables with a maximum outer diameter of 14mm).
Onboard
Advanced
Technical
Diagnostics
PLC
parameters
Data
Schaffner
CT part no.
4200-6000
4200-6001
4200-6118
4200-6119
4200-6210
4200-6307
4200-6406
4200-6503
4200-6002
4200-6118
4200-6119
4200-6210
4200-6305
4200-6406
4200-6503
4200-6603
4200-6309
4200-6408
4200-6504
4200-6604
1
(not supplied) or cable ties. Note
UL Listing
Information
Epcos
CT part no.
4200-6121
4200-6120
4200-6211
4200-6306
4200-6405
4200-6501
4200-6121
4200-6120
4200-6211
4200-6306
4200-6405
4200-6501
4200-6601
4200-6308
4200-6407
4200-6502
4200-6602
81

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