Rockwell Automation 1391 USER MNL/DIGITAL AC SERVO DR - Manual (Page 35)

Chapter 5
Inputs, Outputs and Switch Settings
5-6
Switch Settings This section provides information on setting the Duty Cycle Selector
switch (SW1) and the A Quad B Encoder Output switch (S1). Note that the
settings for 1326AP motors are the same as 1326AB motors. Refer to
Figure 5.2 for switch locations.
Duty Cycle Selector Switch - SW1
The Duty Cycle Selector Switch (SW1) which is located on top of the
drive, modifies the behavior of the shunt regulator. The switch determines
the temperature level and therefore the average power level at which the
drive will fault. Refer to Chapter 10 for detailed switch setting information.
A Quad B Encoder Output Switch - S1
S1 selects the line count that will be output from the A Quad B Board.
ATTENTION: Incorrect setting of S1 can cause erratic and/or
improper machine motion which may result in personal injury
or equipment damage. Assure that switch S1 has been properly
set as shown in Figure 5.3.
!
Figure 5.3
A Quad B Board Switch (S1) Settings
A
A (NOT)
B
B (NOT)
Z
Z (NOT)
2 Marker Pulses per Revolution
CCW Rotation of Motor Shaft
(similar to Allen-Bradley 845H)
Line Count/
Revolution
2048
1024
512
256
S1-2
Switch Setting
OFF
OFF
ON
ON
S1-1
Switch Setting
OFF
ON
OFF
ON
– ON –
1 2
S1