Parameter 77 -- above frequency contact – Rockwell Automation 1336VT AC DRIVE 5-300AMP (2-160KW) PROGRAMMING MANUAL User Manual

Page 67

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Local and Serial Port Parameters
Firmware Version 2.01-3.01

Chapter 5

5-4

Parameter 77 -- Above

Frequency

Contact

Freq

P

R

P

R

Enter

Hertz
0
250
0

Read and Write
Units
Minimum Value
Maximum Value
Factory Setting

This parameter works in conjunction with terminals 10 and 11 of drive
terminal block TB2. Terminals 10 and 11 allow an internal drive supplied
at speed contact to be used in external circuits. The N.O. contact closes
when the drive’s output frequency reaches the command speed within

±

0.5% of maximum speed.

When Parameter 77 is set to zero, the parameter is turned off and the N.O.
contact functions as described above.

When this parameter is set to a value other than zero, Parameter 77
provides a set point reference other than the drive’s command speed. The
N.O. contact will now close when the drive’s output frequency is above the
frequency set by Parameter 77. The contact will open when the drive’s
output frequency is at or below the frequency set by Parameter 77.

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