Baldor UM Series, Инструкция по установке и эксплуатации

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3-4 Receiving & Installation MN1213
Input Power Transformer
The UM series servo control requires an external isolation transformer that
provides an ungrounded AC power source.
•
UM controls with a 100VDC bus require 70VAC
RMS
nominal.
•
UM controls with a 150VDC bus require 105VAC
RMS
nominal.
To determine the proper size transformer (kVA rating), use this guideline:
(Rated Continuous Current) X (Bus Voltage) X (# of Axes)
+
kVARating
Example:
UM4–100–2 with 3 UM3015HS–100
(15A) X (100VDC) X (3 Axes) = 4.5kVA
This method of transformer sizing is safe and it may be a little oversized. In most
cases, servo controls are not continuously operating at full voltage and current all
the time. It is common practice to use a smaller transformer that is sized just
larger than to actual continuous voltage and current consumed by the motor(s).
Baldor has several transformers to suit your application. Identification of these
transformers is shown in Figure 3-3.
±
5% output voltage taps are provided to
accommodate variations in incoming AC voltage.
Figure 3-3 Input Transformer Identification
Phase
Blank = 3 Phase (3T)
E = Single Phase ( T)
T –
Transformers:
XXX
kVA Rating
00.5 = 0.5 kVA
01.0 = 1 kVA
01.5 = 1.5 kVA
03.0 = 3.0 kVA
05.0 = 5.0 kVA
10.0 = 10.0 kVA
15.0 = 15.0 kVA
– XX – XXXX
AC Input Voltage
1123 = 115 / 230 VAC
2346 = 230 / 460 VAC
Control Output
100 = 100V
150 = 150V
Table 3-1 Current and Voltage Rating By Control
Input Voltage 70 VAC 105 VAC
Control
Bus Voltage 100 VDC 150 VDC
AC Input Power
Control
# of Motors
Output Current Amps
Wire Size
Cont. Peak
Catalog Number Catalog Number
AWG mm
2
One 6 15 UM2–100–1–10S – 14 2.5
15 30 UM2–100–1–01S UM2–150–1–01S 12 2.5
Two 6 15 UM2–100–1–20S – 14 2.5
15 30 UM2–100–1–02S UM2–150–1–02S 12 2.5
Three 6 15 UM4–100–2–30S – 14 2.5
15 30 UM4–100–2–03S UM4–150–2–03S 12 2.5
Four 6 15 UM4–100–2–40S – 14 2.5
15 30 UM4–100–2–04S UM4–150–2–04S 12 2.5
Five 6 15 UM6–100–2–50S 14 2.5
15 30 UM6–100–2–05S UM6–150–2–05S 12 2.5
Six 6 15 UM6–100–2–60S – 14 2.5
15 30 UM6–100–2–06S UM6–150–2–06S 12 2.5
Note: An isolation transformer is required to provide these voltages.