TOSHIBA

Parameter Explanations (cont'd)

Item 82, ANALOG INPUT FILTER - Use this parameter to set the amount of filtering applied to the drive's current/voltage frequency reference to dampen noise or resonance problems. "0" is no filtering and "3" is maximum filtering.

Item 83, RR INPUT SELECTION - Use this parameter to allow adjustment of the RR reference's bias and gain. Items 84 and 85 define one point on a % input reference vs. output Hz graph; Items 86 and 87 define another. The drive varies its output frequency as its input changes according to a line connecting these points. See graph below. With default programming, drive outputs 40 Hz

with 5 volts on the "RR" terminal.

Item 84, RR REFERENCE POINT #1 - Use this parameter to set a percentage of reference.

Item 85, RR REF POINT #1 FREQUENCY - Use this parameter to set the desired drive output Hz when its reference has the value set in Item 84 above.

Item 86, RR REFERENCE POINT #2 - Use this parameter to set a percentage of reference. The "RR" terminal's range is 0-10 volts, so the factory default of 100% corresponds to 10 volts.

Item 87, RR REF POINT #2 FREQUENCY - Use this parameter to set the desired drive output Hz when its reference has the value set in Item 86 above.

Bias/Gain of Frequency Input

REFERENCE POINT #2: 100%

Input Reference

 

 

 

 

 

 

Signal

 

 

Output Hz

 

 

REFERENCE POINT #1: 0%

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0 Hz

80

Hz

REF POINT #1 FREQ

REF POINT #2 FREQ

Items 88-92, IV TERMINAL STANDARD OR ADJUSTABLE - Use these parameters to allow adjustment of the "IV" reference's bias and gain. See explanation for Items 83-87 above. With dipswitch in "I" position, drive considers 100% reference = 20 mA (20% would be 4 mA). With dipswitch in "V" position, 100% reference = 10 volts. See page 5-3 for dipswitch location.

Items 93-97, RX TERMINAL STANDARD OR ADJUSTABLE - Use these parameters to allow adjustment of the "RX" reference's bias and gain. See explanation for Items 83-87 above. With dipswitch in "5" position, drive considers 100% reference = 5 volts. With dipswitch in "10" position, 100% reference = 10 volts. See page 5-3 for dipswitch location. Notice that the "RX" reference can be positive or negative, and can represent a positive or negative frequency (direction change).

Items 98-102, PG TERMINAL STANDARD OR ADJUSTABLE - Use these parameters to allow adjustment of the "PG" reference's bias and gain. See explanation for Items 83-87 above. PG input is available on option cards INV3-COM-B and INV3-COM-D. Notice that the PG reference can be positive or negative, and can represent a positive or negative frequency (direction change).

Items 103-107, BINARY INPUT STANDARD OR ADJUSTABLE - Use these parameters to allow adjustment of a binary reference's bias and gain. See explanation for Items 83-87 above. Notice that the binary reference can represent a positive or negative frequency (direction change). These bias/gain adjustments apply to terminals programmed with values 22-32 on page 9-9.

Inspection

Specifications Precautions

Wiring

Jumpers

Panel

Keypad

Programming Parameters

Service

Dimensions

Index

9 - 14

Page 82 Page 84
Page 83
Image 83
Toshiba H3 manual Bias/Gain of Frequency Input, Input Reference
Page 82 Page 84

H3 specifications

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