User manual

4-2 Switch Setting & Start-Up MN1851
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
active.
Automatic Offset Tuning is not
active.
AS1-8 Enable Control is enabled
(Enable is active)
Control is disabled
(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
Time
Main
Power
Time
Enable
Switch AS1-8
Time
Offset Tuning
Switch AS1-7
Time
Automatic
Offset Tuning
Off
On
Off
On
Off
On
Off
On
On or Off On
On or Off On
Start
Offset
Tuning
Offset
Tuning
Done
Note: It is important that you set the analog command to 0VDC before the
Automatic Offset Tuning is started.