Baldor MN1851 AS1-5 to AS1-8 Description, Setting of switches AS1-5 to AS1-8, Switch Function

Setting of switches AS1-5 to AS1-8

The function of switches AS1-5 to AS1-8 are described in Table 4-2.

Table 4-2 AS1-5 to AS1-8 Description

Switch		Function	ON	OFF
AS1-5		Not Used
AS1-6	Hold-Position		Hold-Position is active.	Hold-Position is not active
AS1-7	Offset Tuning		Automatic Offset Tuning is	Automatic Offset Tuning is not
			active.	active.
AS1-8		Enable	Control is enabled	Control is disabled
			(Enable is active)	(Enable is not active)
Hold-Position		OFF allows normal operation.
		ON causes the motor to quickly decelerate to stop and maintain a constant
		position (in current or velocity modes). (Time to max velocity = 0 with the Hold
		function.)
Offset Tuning		OFF allows normal operation.
		ON causes Offset Tuning to automatically start the next time Enable is changed
		from ON to OFF. The purpose of Offset Tuning is to remove DC offset voltages (on
		the command input X3-1 and X3-2) and achieve a stationary motor shaft with
		0VDC at the command input. Leave this switch OFF when not in use. See Figure
		4-1 for additional information.
Enable		OFF disables the control and the motor coasts to a stop.

ON allows normal operation.

Note: AS1-8 and X3-9 must both be enabled to allow control operation.

Figure 4-1 Automatic Offset Tuning Timing Diagram

Main

Power

Enable

Switch AS1-8

Offset Tuning Switch AS1-7

Automatic

Offset Tuning

On
Off
		Time
On
On or Off	On
Off		Time
On
On or Off	On
Off
		Time
On	Start	Offset
	Offset	Tuning
Off	Tuning	Done
		Time

Note: It is important that you set the analog command to 0VDC before the Automatic Offset Tuning is started.

4-2 Switch Setting & Start-Up MN1851