Power Dissipation - Emerson Epsilon Eb Series Reference Manual

Power Dissipation

In general, the drive power stages are 90 to 95 percent efficient depending on the actual point
of the torque speed curve the drive is operating. Logic power losses on the E Series drive is
11 W minimum to 21 W depending on external loading such as FM modules and input
voltages. Logic power losses on the Epsilon drive are 11 W with normal loads to 15 W with
additional loads such as external encoder and low input voltage (<22 VDC on A.P.S. or 120
VAC on AC input).
The values shown in the table below represent the typical dissipation that could occur with
the drive/motor combination specified at maximum output power.
Drive Model
EN-204 / MG-205
EN-204 / MG-208
EN-204 / MG-316
EN-208 / MG-340
EN-208 / MG-455
EN-214 / MG-490
EN-214 / MG-4120
Eb-202 / MG-205
Eb-202 / NT-207
Eb-202 / NT-212
Eb-203 / NT-207
Eb-203 / MG-208
Eb-203 / NT-212
Eb-203 / MG-316
Eb-205 / NT-212
Eb-205 / MG-316
Eb-205 / MG-340
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Logic Power Losses Maximum Power Stage
(typ) Drive
(Pld) (Watts) (Pp) (Watts)
19
11
Specifications
Total
Losses Power Losses
(Watts)
30 52
50 72
82 104
160 182
200 222
300 322
430 452
25 36
25 36
30 41
30 41
55 66
55 66
60 71
55 66
72 83
88 99
205