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286 Unidrive M Regen Design Guide
Issue Number: 4
Table 10-7 Power losses from the front of the drive when through-
panel mounted
Table 10-8 Unidrive M Rectifier losses @ 40/50 °C (104/122 °F)
ambient
* Twin rectifier
For Regen inductor and switching frequency filter inductor losses refer to
section 10.4.2 Regen filter components for high quality/low harmonic
power supplies on page 294 onwards.
10.2 Supply requirements
Voltage:
200 V to 240 V ±10 %
380 V to 480 V ±10 %
500 V to 575 V ±10 %
500 V to 690 V ±10 %
Number of phases: 3
Maximum supply imbalance: 2 % negative phase sequence (equivalent
to 3 % voltage imbalance between phases).
Frequency range: 45 to 66 Hz
N
Drives rated for supply voltages up to 690 V are suitable for use with
supply types with neutral or centre grounding i.e. TN-S, TN-C-S, TT
The following supplies are not permitted with Unidrive M Regen:
1. Corner grounded supplies (grounded Delta)
2. Ungrounded supplies (IT) > 575 V
10.2.1 DC bus voltage set-point
The DC bus voltage set-point is user definable through Pr 03.005, this
must be set to 50 V above Vac* 2.
10.2.2 Temperature, humidity and cooling method
Ambient temperature operating range:
-20 °C to 55 °C (-4 °F to 131 °F).
Output current derating must be applied at ambient temperatures
>40 °C (104 °F).
Cooling method: Forced convection
Maximum humidity: 95 % non-condensing at 40 °C (104 °F)
10.2.3 Storage
-40 °C (-40 °F) to +55 °C (131 °F) for long term storage, or to +70 °C
(158 °F) for short term storage.
Storage time is 2 years.
Electrolytic capacitors in any electronic product have a storage period
after which they require reforming or replacing.
The DC bus capacitors have a storage period of 10 years.
The low voltage capacitors on the control supplies typically have a
storage period of 2 years and are thus the limiting factor.
Low voltage capacitors cannot be reformed due to their location in the
circuit and thus may require replacing if the drive is stored for a period of
2 years or greater without power being applied.
It is therefore recommended that drives are powered up for a minimum
of 1 hour after every 2 years of storage. This process allows the drive to
be stored for a further 2 years.
10.2.4 Altitude
Altitude range: 0 to 3,000 m (9,900 ft), subject to the following conditions:
1,000 m to 3,000 m (3,300 ft to 9,900 ft) above sea level: de-rate the
maximum output current from the specified figure by 1 % per 100 m
(330 ft) above 1,000 m (3,300 ft)
For example at 3,000 m (9,900 ft) the output current of the drive would
have to be de-rated by 20 %.
10.2.5 IP Rating (Ingress Protection)
The drive is rated to IP20 pollution degree 2 (dry, non-conductive
contamination only) (NEMA 1). However, it is possible to configure the
drive to achieve IP65 rating (NEMA 12) at the rear of the heatsink for
through-panel mounting (some current derating is required).
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 10-9.
Frame size Power loss
3 50 W
4 75 W
5 100 W
6 100 W
7 204 W
8 347 W
9 480 W
10 480 W
11 480 W
Rectifier Model Voltage rating (V) Maximum Losses (W)
10204100 200 535
10404520 400 1019
10502430 575 499
10602480 690 609
11406840 400 1627
11503840 575 935
11604060 690 661
1142X400* 400 1773
1162X380* 690 1679
Drive voltage rating (11.033) Vfs K
200 V 415 V 1045
400 V 830 V 522
575 V 990 V 438
690 V 1190 V 364
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