Rockwell Automation 1391ES AC Servo Controller - Manual (Page 10)

Specifications
Chapter 2
2-8
Specifications are for reference only and are subject to change without notice.
Environmental Specifications The 1391B-ES must be mounted in an enclosure that is clean, dry and
ventilated by filtered or cooled air. Enclosures vented with ambient air
must have appropriate filtering to protect against contamination caused by
oils, coolants, dust, condensation etc. The ambient air temperature must be
kept between 0 to 60
°
C (32 to 140
°
F) and the humidity between 5 and
95%, non-condensing.
The 1391B-ES is equipped with an integral cooling fan. The general flow
of air through the unit must be maintained by following the recommended
spacing guidelines found in Chapter 6. The 1391B-ES can operate at
elevations to 3300 feet (1000 meters) without derating, however, the
current rating must be derated by 3% for each additional 1000 feet (305
meters) up to 10,000 feet (3050 meters). Consult with your local
Allen-Bradley Sales Representative prior to operation over 10,000 feet
(3050 meters).
Controller Power Dissipation The 1391B-ES dissipation characteristics are approximated in Table 2.A.
Table 2.A
Controller Power Dissipation
Rated Power
Output
(%)
20
40
60
80
100
1391B-ESAA
15
(watts)
38
76
114
152
190
1391B-ESAA
22
(watts)
55
110
165
220
275
1391B-ESAA
45
(watts)
104
208
312
416
520
Transformer Power Dissipation The power dissipation characteristics of the 1391 Isolation Transformer are
shown in Table 2.B.
Table 2.B
1391 Isolation Transformer Power Dissipation
Rated Power
Output
(%)
20
40
60
80
100
1.5kV
A
(watts)
13
25
38
50
60
3.5kV
A
(watts)
35
70
105
140
175
5.0kV
A
(watts)
50
100
150
200
250
10.0kV
A
(watts)
100
200
300
400
500
12.5kV
A
(watts)
125
250
375
500
625
15.0kV
A
(watts)
150
300
450
600
750