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Program group, 41 [motor overload select, 42 [motor overload current – Rockwell Automation 160 AC DRIVE SER B/FRN 5-6.XX User Manual

Page 33: 43 [current limit, 44 [dc hold time, 45 [dc hold voltage, Dc injection braking mode, Ramp to stop mode, P# parameter description

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Chapter 5 – Parameters and Programming

5-6

Program Group

P#

Parameter Description

Min/Max

Range

Units

Factory

Default

41

[Motor Overload Select]

Selects the derating factor for the I

2

t over-

load function.

Min Derating

Max Derating

% Base Speed

% Base Speed

0 25 50 75100 125 150 175 200

0 25 50 75 100125 150 175 200

[Overload Current]

% of

Setting

[Overload Current]

% of

Setting

100

80
60

40

20

100

80
60

40

20

Settings:

0 = No Derating

1 = Minimum Derating

2 = Maximum Derating

100

80
60

40

20

0 25 50 75 100 125 150 175 200

% Base Speed

No Derating

[Overload Current]

% of

Setting

0 to 2

Numeric

Value

0

42

[Motor Overload Current]

Set to motor nameplate full load Amps

(FLA).

0.1 to 200%

of controller

rating

.01 Amperes

115% of

Controller

Rating

43

[Current Limit]

Maximum output current allowed before current limiting

occurs. Value set in percent of controller rated output current.

1 to 180%

of controller

rating

1 %

150%

44

[DC Hold Time]

Time that P45 – [DC Hold Voltage] will be applied to the

motor when P34 – [Stop Mode Select] is set to either “DC Injection Braking” or
“Ramp to Stop” mode.

0 to 25

0.1 Second

0 Seconds

45

[DC Hold Voltage]

DC Voltage level applied to the motor during braking

when P34 – [Stop Mode Select] is set to either “DC Injection Braking” or “Ramp
to Stop” mode.

Important:

If the current exceeds P43 – [Current Limit] the voltage applied to

the motor will be less than this setting.

0 to 115

1 Volt

0 Volts

[DC Hold Time]

y

Stop Command

[DC Hold Voltage]

Time

Speed

Voltage

Volts and Speed

DC Injection Braking Mode

Volts and Speed

y

Voltage

Stop Command

[DC Hold Time]

[DC Hold Voltage]

Time

Speed

Ramp to Stop Mode