Derating; Surrounding Air Temperature Derating; Coolant Temperature Derating; Antifreeze Content Derating - ABB ACS880-607LC Hardware Manual

3-phase dynamic brake units
Hide thumbs Also See for ACS880-607LC:
Table of Contents

Advertisement

Example: Brake unit with two parallel connected modules
I
I
I
I
I
I
I
I

Derating

Surrounding air temperature derating

In the temperature range +45...55 °C (+113...131 °F), the rated output current is derated
by 0.5 percentage points for every added 1 °C (1.8 °F). The output current can be
calculated by multiplying the current given in the rating table by the derating factor
(k) :
k
1.00
0.95
0.90
+45 °C
+113 °F

Coolant temperature derating

See section
Temperature limits (page

Antifreeze content derating

See section
Temperature limits (page
I
I
T
+55 °C
+131 °F
96).
96).
Technical data 101

Advertisement

Table of Contents
loading

Table of Contents