Table 12-8 Ip Rating Degrees Of Protection; Table 12-9 Ul Enclosure Ratings - Emerson unidrive sp User Manual

Safety Product Mechanical
Information Information Installation
In order to achieve the high IP rating at the rear of the heatsink with
Unidrive SP size 1 and 2, it is necessary to seal a heatsink vent by
installing the IP54 insert as shown in Figure 3-6 and Figure 3-7 on
page 32. For increased fan life time in a dirty environment the heatsink
fan must be replaced with an IP54 rated fan on size 1 to 4. Sizes 5 and 6
are installed with IP54 heatsink fans as standard. Contact the supplier of
the drive for details.
Installing of the IP54 insert and/or IP54 rated fan on sizes 1 and 2
requires output current derating to be applied, see section 12.1.1 Power
and current ratings (Derating for switching frequency and
temperature) on page 265 for further details.
The IP rating of a product is a measure of protection against ingress and
contact to foreign bodies and water. It is stated as IP XX, where the two digits
(XX) indicate the degree of protection provided as shown in Table 12-8.

Table 12-8 IP Rating degrees of protection

First digit
Protection against contact and
ingress of foreign bodies
0 No protection
Protection against large
foreign bodies φ > 50mm
1
(large area contact with the
hand)
Protection against medium
size foreign bodies φ > 12mm
2
(finger)
Protection against small
foreign bodies φ > 2.5mm
3
(tools, wires)
Protection against granular
foreign bodies φ > 1mm (tools,
4
wires)
Protection against dust
5 deposit, complete protection
against accidental contact.
Protection against dust
6 ingress, complete protection
against accidental contact.
7 -
8 -

Table 12-9 UL enclosure ratings

UL rating
Enclosures are intended for indoor use, primarily
Type 1 to provide a degree of protection against limited
amounts of falling dirt.
Enclosures are intended for indoor use, primarily
Type 12 to provide a degree of protection against dust,
falling dirt and dripping non-corrosive liquids.
12.1.10 Corrosive gasses
Concentrations of corrosive gases must not exceed the levels given in:
• Table A2 of EN 50178:1998
• Class 3C2 of IEC 60721-3-3
This corresponds to the levels typical of urban areas with industrial
activities and/or heavy traffic, but not in the immediate neighborhood of
industrial sources with chemical emissions.
12.1.11 RoHS compliance
Unidrive SP size 0 meets EU directive 2002-95-EC for RoHS
compliance.
12.1.12 Vibration
Maximum recommended continuous vibration level 0.14 g r.m.s. broad-
band 5 to 200 Hz.
272
Electrical Getting Basic
installation Started parameters
Second digit
Protection against ingress of water
0 No protection
Protection against vertically
1
falling drops of water
Protection against spraywater
2
(up to 15° from the vertical)
Protection against spraywater
3
(up to 60° from the vertical)
Protection against splashwater
4
(from all directions)
Protection against heavy
5 splash water (from all
directions, at high pressure)
Protection against deckwater
6
(e.g. in heavy seas)
7 Protection against immersion
8 Protection against submersion
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NOTE
This is the limit for broad-band (random) vibration. Narrow-band
vibration at this level which coincides with a structural resonance could
result in premature failure.
Bump Test
Testing in each of three mutually perpendicular axes in turn.
Referenced standard:IEC 60068-2-29: Test Eb:
Severity: 18g (size 1 to 3), 6ms, half sine
10g (size 4 to 6), 6ms, half sine
No. of Bumps: 600 (100 in each direction of each axis)
Random Vibration Test
Testing in each of three mutually perpendicular axes in turn.
Referenced standard:IEC 60068-2-64: Test Fh:
Severity: 1.0 m²/s³ (0.01 g²/Hz) ASD from 5 to 20 Hz
-3 dB/octave from 20 to 200 Hz
Duration: 30 minutes in each of 3 mutually perpendicular axes.
Sinusoidal Vibration Test
Testing in each of three mutually perpendicular axes in turn.
Referenced standard: IEC 60068-2-6: Test Fc:
Frequency range: 5 to 500 Hz
Severity: 3.5 mm peak displacement from 5 to 9 Hz
10 m/s² peak acceleration from 9 to 200 Hz
15 m/s² peak acceleration from 200 to 500 Hz
Sweep rate: 1 octave/minute
Duration: 15 minutes in each of 3 mutually perpendicular axes.
12.1.13 Starts per hour
By electronic control: unlimited
By interrupting the AC supply: ≤20 (equally spaced)
12.1.14 Start up time
This is the time taken from the moment of applying power to the drive, to
the drive being ready to run the motor:
Sizes 0 to 6: 4s
12.1.15 Output frequency / speed range
Open-loop frequency range: 0 to 3,000Hz
Closed-loop speed range: 0 to 40,000rpm
Closed-loop frequency range: 0 to 1,250Hz*
*(For good performance limit to ~ 600Hz in closed loop vector mode and
~ 400Hz in RFC mode)
12.1.16 Accuracy and resolution
Speed:
The absolute frequency and speed accuracy depends on the accuracy
of the crystal used with the drive microprocessor. The accuracy of the
crystal is 100ppm, and so the absolute frequency/speed accuracy is
100ppm (0.01%) of the reference, when a preset speed is used. If an
analog input is used the absolute accuracy is further limited by the
absolute accuracy of the analog input.
The following data applies to the drive only; it does not include the
performance of the source of the control signals.
Open loop resolution:
Preset frequency reference: 0.1Hz
Precision frequency reference: 0.001Hz
Closed loop resolution
Preset speed reference: 0.1rpm
Precision speed reference: 0.001rpm
Analog input 1: 16bit plus sign
Analog input 2: 10bit plus sign
Current:
The resolution of the current feedback is 10bit plus sign.
Accuracy: typical 2%
worst case 5%
Onboard Advanced Technical
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Unidrive SP User Guide
Issue Number: 13
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