Rockwell Automation 1391ES AC Servo Controller - Manual (Page 37)

Inputs, Outputs and Adjustments
Chapter 5
5-35
Tachometer Scaling (S2-1)
Switch S2-1 is used to configure the 1391B-ES tachometer synthesis
circuitry to a range appropriate for the applied motors. Select the “ON”
position for 1326AD and 1326AB-Axx motors and speeds to 6000 rpm.
“OFF” is used for 1326AB-Bxx and Cxx motors to 4000 rpm.
ID Cut In (S2-2)
This switch sets the ID cut in speed. ID is a phase specific current added to
the torque producing current at higher speeds to extend the performance
range of the controller. The ID point differs with the motor used. Refer to
Table 5.E for switch settings. For motors not listed, consult your
Allen-Bradley Sales Representative.
Table 5.E
S2-2 Switch Positions
Motor Catalog
Number
1
1326AB-A1E
1326AB-A2E
1326AB-A3E
1326AB-B1C
1326AB-B1E
1326AB-B2C
1326AB-B2E
1326AB-B3C
1326AB-B3E
1326AB-B4E
1326AB-C1C
1326AB-C1E
S2-2 Switch
Setting
ON
ON
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
1 Settings for 1326AP and 1326AB AC motors are identical. If using blower, increase the motor
rated current by 35% and set S1 accordingly.
Motor Catalog
Number
1
1326AB-C2C
1326AB-C2E
1326AB-C3C
1326AB-C3E
1326AB-C4B
1326AB-C4C
1326AD-K2G
1326AD-K3G
1326AD-K4F
1326AD-K5E
S2-2 Switch
Setting
OFF
ON
OFF
ON
OFF
OFF
OFF
OFF
OFF
OFF
ID Magnitude (S2-3)
This switch is used to identify the type of motor being used. Set the switch
to “ON” to signify a 1326AB motor and “OFF” for a 1326AD motor.
Drive OK/Drive Ready (S2-4)
This switch causes the DROK contacts to close under different
circumstances.
If the switch is set to “ON,” the contact will close if no faults are detected
and the bus voltage is nominal. An undervoltage condition will cause the
DROK contacts to open.
If the switch is placed to the “OFF” position, the contacts will close once
the undervoltage condition clears. Bus undervoltage will not effect the
DROK contacts.