Independent Dancer Control - Toshiba G3 Workbook

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Independent Dancer Control

Introduction
The G3's dancer can be configured to act in two ways: independent of a master line reference (unlimited
frequency adjustment) or as a trim off of a master line reference (max +/- 12.5% trim). This guideline will
discuss an application in which the drive changes motor speed (via a internal PID) to maintain dancer
position independent of any master line speed reference the drive is getting. See Application Guideline 28,
Trim Dancer Control for discussion of the other type of dancer application. For this guideline, the drive is
configured to follow a 4-20 mA reference as a "threading" speed and will automatically turn on the dancer
PID when the drive reaches a programmed output frequency. The drive will ignore this 4-20 mA reference
when the PID is on. See related Guidelines 24 (PID) and 10 (Programmable Inputs) for more information.
Connections
TERMINAL STRIP
ST CC F CC
S1 CC IV CC PP RX CC
Dancer OFF
Dancer ON
5/10 volt dancer position
4-20 mA threading speed
Set the micro switch immediately to the right of the phone jack on the control board to the 5 volt or 10 volt position as appropriate for
your dancer. The other micro switch should be in the 'I' position for this example.
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For additional assistance, please contact Toshiba Adjustable Speed Drive Marketing Dept. at (800) 872-
2192