Rockwell Automation 1336T FORCE Series B User Manual

Page 171

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Chapter 5
Programming Parameters

5–45

Absolute Overspeed Threshold
[Absolute Overspd]

Parameter Number

90

Parameter Type

Sink

Display Units

x.x rpm

Drive Units

4096 = 100.0% overspeed

Factory Default

0.1 x base speed

Minimum Value

0.0 rpm

Maximum Value

base speed

This parameter indicates the incremental
speed above Forward Speed Limit or be-
low Reverse Speed Limit that is allowable
before an Absolute Overspeed Fault is
indicated.

Stall Delay
[Stall Delay]

Parameter Number

91

Parameter Type

Sink

Display Units

x.x sec.

Drive Units

sec. x 10.0

Factory Default

1.0 sec

Minimum Value

0.1 sec

Maximum Value

3276.7 sec

This parameter specifies the amount of
time that the Drive must be in current limit
and at zero speed before a Stall Fault will
be indicated.

Motor Overload Limit
[Mtr Overload Lim]

Parameter Number

92

Parameter Type

Sink

Display Units

xx.x%

Drive Units

4096 = 100% Iq for 60 sec.

Factory Default

200.0%

Minimum Value

110.0%

Maximum Value

400.0%

This parameter specifies the level of Iq
current that will cause a Motor Overload
Trip after 60 seconds.

Service Factor
[Service Factor]

Parameter Number

94

Parameter Type

Sink

Display Units

x.xx

Drive Units

4096 = 1.00

Factory Default

1.00

Minimum Value

1.00

Maximum Value

2.00

This parameter specifies the minimum lev-
el of Iq current that will cause a motor over-
load (IIT) trip under continuous operation.
Current levels below this value will never
result in an overload trip.
Example – a service factor of 1.15 implies
continuous operation up to 115% of name-
plate motor current.

Overload Speed 1
[Mtr Overld Spd 1]

Parameter Number

95

Parameter Type

Sink

Display Units

+/– x.x rpm

Drive Units

4096 = Base Motor Speed

Factory Default

0.8 x Base Speed

Minimum Value

0.0 rpm

Maximum Value

2 x Base Speed

If the absolute value of motor speed is at or
below the speed specified in this parame-
ter, the motor overload will use the Min
Overload Lmt (parameter #97) as its mini-
mum current trip level.

Motor Overload Speed 2
[Mtr Overld Spd 2]

Parameter Number

96

Parameter Type

Sink

Display Units

+/– x.x rpm

Drive Units

4096 = Base Motor Speed

Factory Default

0.8 x Base Speed

Minimum Value

0.0 rpm

Maximum Value

2 x Base Speed

If the absolute value of motor speed is at or
below the speed specified in this parame-
ter, the motor overload will use 100% as its
minimum current trip level.

Minimum Overload Limit
[Min Overload Lmt]

Parameter Number

97

Parameter Type

Sink

Display Units

x.x%

Drive Units

4096 = 100.0% current

Factory Default

100.0%

Minimum Value

0.0 %

Maximum Value

100.0%

This is the minimum motor overload trip
level that will be in effect when the motor
speed is at or below Mtr Overld Spd 2
(P96)

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