Delta VFD11AMS21AFSHA, Руководство пользователя

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Chapter 12 Description of Parameter Settings

MS300 (High Speed Model)
12-14-6
40
20
60
80
100
25 50 100 150
Mo to r co a xi a l co o l i n g cu r ve fi g u r e
Ra te d fr e q u e n cy o f mo to r %
Ra te d cu r r e n t
o f mo to r %
Ra te d cu r r e n t
o f mo to r %
Ra te d fr e q u e n cy o f mo to r %
Mo to r i n d e p e n d e n t co o l i n g cu r ve fi g u r e
25 50 100 150
40
20
60
80
100
75 125 75 125

The electronic thermal relay action condition should be follow the settings of Pr. 14-80 /
Pr. 14-82:
1. Pr. 14-80 / Pr. 14-82 set to 0:Inverter motor (with external forced cooling):
When drive output current is higher than the rated current 150 % of motor (please refer to the
motor independent cooling curve figure as above), drive starts to accumulate time if the
accumulation time exceeds the settings of Pr. 14-81 / Pr. 14-83, electronic thermal relay will be
actuated.
2. Pr. 14-80 / Pr. 14-82 set to 1:Standard motor (motor with fan on the shaft)
：
When drive output current is higher than the rated current 150 % of motor (please refer to the
motor coaxial cooling curve figure as above), drive starts to accumulate time if the
accumulation time exceeds the settings of Pr. 14-81 / Pr. 14-83, electronic thermal relay will be
actuated. The electronic thermal relay action time will depend on the drive output current (load
rate of motor %) to make appropriate adjustments, the short action time when the current is
high, the long action time when the current is low, please see the figure showing as below:
50
2 00
1 00
1 50
0
2 50
30 0
F= 50H z
F= 40H z
F= 20H z
4 50
3 50
4 00
5 00
5 50
6 00
12 24 36 48 60 72 84 96
10
8
12
0
13
2
14
4
15
6
16
8
18
0
19
2
Op eratio n time
(se c.)
Motor l oa din g ra te
(%)