Leeson Micro Series Compact Inverters Manual do Utilizador descarregar pdf (Página 54)

1-4 SPEED #1-#4 (PRESETSPEEDS#1,#2,#3,AND#4)

PRESET SPEEDS are only active when the drive is in AUTO mode, and are activated via contact closures

between terminal TB-2 and terminals TB-13A, TB-13B, and TB-13C. These terminals must be

programmed as preset speed selects using Parameters 47 - 49: TB13A, TB13B, and TB13C.

The preset speeds can only be set to values that are within the operating range defined by the minimum and

maximumfrequency(seeParameters:10-MINFREQ,and11-MAXFREQ).

The following table shows how each preset speed is selected using the TB-13 terminals. The terms OPEN

and CLOSED refer to the state of the TB-13 terminal relative to TB-2.

NOTE: SPEED #4 is selected if any two of the three TB-13 terminals are closed to TB-2

5,6 SKIP #1 & #2 (SKIPSPEED#1&#2)

7 BAND WID (SKIPBANDWIDTH)

These parameters are used to prevent the drive from operating continuously at critical speeds, or

frequencies, that cause excessive mechanical vibration of the driven equipment. The SKIP SPEEDS

(Parameters 5 and 6) and the SKIP BANDWIDTH (Parameter 7) are used to define up to two speed

avoidance ranges. The SKIP SPEED settings define the starting point of the speed range that is to be

avoided, and the SKIP BANDWIDTH setting defines how far the speed range extends beyond SKIP

SPEED.

PRESET SPEED ACTIVATION

SPEED # TB-13A TB13B TB-13C

1 CLOSED OPEN OPEN

2 OPEN CLOSED OPEN

3 OPEN OPEN CLOSED

4 CLOSED CLOSED OPEN

CLOSED OPEN CLOSED

OPEN CLOSED CLOSED

1 2 ... 49 50 51 52 53 54 55 56 57 58 59 ... 91 92

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Leeson Micro Series Compact Inverters Manual do Utilizador Página 54