Allen-Bradley 1305 Series User Manual

Programming
5-12
Setup Group (continued)
[Overload Mode]
Parameter # 37 Factory Default “No Derating”
[Overload
Mode]
Parameter Type Read & Write
This parameter selects the derating factor for the I
2
t
electronic overload function. Designed to meet NEC Article
Units Text Settings ‘‘No Derating”
10:1 Speed Range
– No Derating Refer to Figure 5.2
electronic
overload
function
.
Designed
to
meet
NEC
Article
430 and UL (file E59272) equivalent requirements.
Additional overload devices do not need to be installed.
‘‘Min Derate”
4:1 Speed Range
– Derate below 25% of Base Speed.
Refer to Figure 5.3
‘‘Max Derate”
2:1 Speed Range
– Derate below 50% of Base Speed.
Refer to Figure 5.4
100
80
60
40
20
0 25 50 75 100 125 150
175 200
% Base Speed
Figure 5.2 No Derating
100
80
60
40
20
100
80
60
40
20
Figure 5.3 Min Derating Figure 5.4 Max Derating
% Base Speed % Base Speed
0 25 50 75 100 125 150
175 200
0 25 50 75 100 125 150
175 200
[Overload Current]% of Setting
[Overload Current]% of Setting
[Overload Current]% of Setting
[Overload Current]
Parameter # 38 Factory Default 115% of Drive Rated Current
Displayed in Amps
[Overload
Current]
This value should be set to the motor name
p
late Full Load
Parameter Type Read & Write Minimum 20% of Drive Rated Current
Displayed in Amps
This
value
should
be
set
to
the
motor
nameplate
Full
Load
Amps (F.L.A.).
Units 0.1 Amps Maximum 115% of Drive Rated Current
Displayed in Amps
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Allen-Bradley 1305 Series Specifications

General

Series	1305
Dimensions	Varies by model
Weight	Varies by model
Frequency Range	50-60 Hz
Control Method	Volts per Hertz
Communication Interface	RS-485
Enclosure Type	IP20
Storage Temperature	-40-70°C
Humidity	5 to 95% non-condensing