The Preset and Input Status displays of 1s and 0s represent the drive’s display of parameters #12 and #15. These inputs can be viewed in the status display with a Program Key Module (Parameter Unit). Refer to the AC drive Diagnostics/Parameter Viewing Section. Parameter #15 displays the Preset Status and Parameter #12 displays the Input Status. When voltage is high (inactive) for an input, the status display will read “0” (Logic 0). When voltage is low (active) for an input, the status display will read “1” (Logic 1). Table 31 contains the correct display value for each function. The first digit in the Preset and Input Status parameters do not correspond to a control input function.

Balance Output

The AC Drive Balance Output is transmitted to the machine controller by the closure of an on-board normally open mechanical relay shown in Figure 24. This action occurs at distribution speed connecting TB3-10 and TB3-11 when the drive detects an acceptable balance condition.

Allen-Bradley 160-Series AC Drives

CAUTION

MACHINE DAMAGE AND/OR PERSONAL INJURY. Balance output terminals TB3-10 and TB3-11 should never be jumpered. This action will force the machine beyond designed tolerances.

W669

A secondary out-of-balance switch has been added to some machine models to prevent an extreme out-of- balance load from spinning. The switch opens the STOP input which disables the drive. The control inputs must be removed and reapplied to the drive for motion to resume after a STOP input has been interrupted.

Control Terminal (TB3) Torque Specifications

Max/Min Wire Size

 

Maximum Torque

mm2 (AWG)

 

N-m (lb-in)

2.5/0.5

 

0.8/0.4

(14/22)

 

(8/4)

Table 31

 

F232120

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