1328 Azalea Garden Rd.
Norfolk VA. 23502
Date: April 14 2003
Contact: (customerservice [at] bauercomp [dot] com)
This information bulletin affects - NCU4 Version 2 manufactured after April 2003
The following information describes the mold machine interface configuration for the NCU4.
Note: all input contacts are to be "dry type" contact with not external voltage connected. The interface connector (24 pin Harting) has been modified for the new style controllers manufactured after April 15 2003. This modification was made to separate the interface signals for channels 1&2 and the interface signals for channels 3&4 as the new style NCU has been designed to interface with two molding machines. This in effect makes the NCU4 act as two NCU2 units. When used as an NCU4, The associated inputs for channels 1&2 should be jumped to the matching inputs for channels 3&4. The channel 2 and channel 4 enables have been moved to the bottom of the connector to allow easy exchange between NCU2 units and NCU4 units (unless the descrete outputs are being used).
Intitiate Contact: While no cycle is currently in progress, closing this input will start a new cycle. This contact can be closed momentarily or closed and held closed for the cycle duration.
Cycle Kill: Closing this input will send a kill cycle signal to the controller. This contact should remain open for normal service.
Mold closed: The controller treats this input as a standard safety input which must be closed in order to initiate a cycle, and will kill the cycle if opened during same. If a purge cycle is due, purging will take place upon cycle end when this input opens. Note: The operator safety gate and purge shield must be closed for purging to take place.
Safety Circuit: This input should be wired through the Purge guard swith and the operator guard switch (and any other machine safety contacts) in series. This input must be closed for a cycle to start and continue and for a purge to take place.
Channel enable: These contacts must be closed (either jumped on the plug connector or closed by the molding machine) in order to allow the controller to send a signal to its outputs.