Rockwell Automation 1394 SERCOS Interface Multi-Axis Motion Control System Installation Manual - Manual (Page 111)

Publication 1394-IN002B-EN-P — February 2004
Specifications and Dimensions A-7
1394 System Power Dissipation Specifications
The following section contains the power dissipation characteristics of
the 1394 system modules, axis modules, and internal shunt resistors.
System Modules
Axis Modules
1 The AM50/75 are designed to mount with the rear heat sink extended outside the customer-supplied enclosure. If
the modules are mounted entirely inside the customer supplied enclosure, the full power dissipation is inside the
cabinet (the sum of the inside/outside columns).
2
The AM50/75-IH are designed to mount entirely inside the customer-supplied enclosure.
IMPORTANT
Use the power dissipation figures shown below to
calculate cumulative system heat dissipation to
ensure that the ambient temperature inside the
enclosure does not exceed 50° C (122° F). To
calculate total power dissipation, add the dissipation
of the system module to the dissipation of the axis
module(s).
Percentage of Rated
Power Output
Power Dissipation
Watts
1394x-SJT05-x 1394x-SJT10-x 1394x-SJT22-x
20 66 70 100
40 70 77 150
60 73 84 200
80 77 81 250
100 80 98 300
Percentage of Rated
Power Output
Power Dissipation
Watts
Total Inside Cabinet Outside Cabinet
AM03 AM04 AM07
AM50
1
and
AM50-IH
2
AM75
1
and
AM75-IH
2
AM50
1
AM75
1
AM50
1
AM75
1
20 24 27 33 56 85 18 18 38 67
40 30 36 48 95 145 18 18 77 127
60 36 45 63 139 212 18 18 138 194
80 42 54 78 183 279 18 18 165 261
100 48 63 93 227 346 18 18 209 324