ITT S-DRIVE IM213 - Manual (Page 16)

16
Starting the System
Section 7
(continued)
Setting the Motor Overload Switches
The Motor Overload Setting Switches adjust the level of motor overload current
protection necessary to protect the motor in case of an over current condition.
Bank 1 switches 1, 2 and 3 allow adjustment of the motor overload setting.
These switches adjust the motor overload protection as a percentage of the full
load output current rating of the controller. Choose a motor overload setting that
meets or is less than the motor’s SFA rating. For example, if the full load output
current rating of the controller is 37A and the motor SFA rating is 33A, the motor
overload setting should be set to 85% (33A/37A = 89%, next lowest setting is
85%).
In applications where the pump and motor are not used to the full capacity the
system may not draw current close to the motor’s SFA rating. In this case choose
a motor overload setting that is close to the actual full load running current.
Note
If single phase input power is used the motor overload switches must be set to 50% or lower or
nuisance input phase loss errors can result.
The chart below shows the motor overload setting for each model.
Motor Overload Setting
Supply Frame Model
100% 95% 90% 85% 80% 70% 50% 40%
Voltage Size Number
1
SPD20050
17.8 16.9 16.0 15.1 14.2 12.5 8.9 7.1
SPD20050F
SPD20075
26.4 25.1 23.8 22.4 21.1 18.5 13.2 10.6
2
SPD20075F
SPD20100
37.0 35.2 33.3 31.5 29.6 25.9 18.5 14.8
SPD20100F
208/230
SPD20150
47.4 45.0 42.7 40.3 37.9 33.2 23.7 19.0
3
SPD20150F
SPD20200
60.6 57.6 54.5 51.5 48.5 42.4 30.3 24.2
SPD20200F
SPD20250
76.0 72.2 68.4 64.6 60.8 53.2 38.0 30.4
4
SPD20250F
SPD20300
94.0 89.3 84.6 79.9 75.2 65.8 47.0 37.6
SPD20300F
SPD40050
8.9 8.5 8.0 7.6 7.1 6.2 4.5 3.6
1
SPD40050F
SPD40075
13.2 12.5 11.9 11.2 10.6 9.2 6.6 5.3
SPD40075F
460
SPD40100
18.5 17.6 16.7 15.7 14.8 13.0 9.3 7.4
SPD40100F
2
SPD40150
23.7 22.5 21.3 20.1 19.0 16.6 11.9 9.5
SPD40150F
SPD40200
30.3 28.8 27.3 25.8 24.2 21.2 15.2 12.1
SPD40200F
SPD40250
37.5 35.6 33.8 31.9 30.0 26.3 18.8 15.0
3
SPD40250F
SPD40300
47.0 44.7 42.3 40.0 37.6 32.9 23.5 18.8
SPD40300F