9 Operation and Maintenance Manual
MQ-150 Ballscrew Feed Unit
When the unit (quill) overtravels forward, the quill
leaves
the path of this sensor and
a forward overtravel condition results.
The rear most sensor is the rear overtravel. It is a normally closed (N.C.) type sensor.
When the unit overtravels in the rear direction the quill
enters
the path of this sensor
and a rear overtravel results.
The home sensor operates similar to the rear overtravel sensor in that the quill enters
its path for detection of home. It is also a N.C. type sensor and breaks open during a
HOME detection.
External connections
- Additional inputs and outputs are available for various
functions. These need to be wired by the customer as needed. The only required
input is from the start buttons or the PLC for the START CYCLE. This is wired to
INPUT 0 . Two user outputs are provided via dry relay contact see electrical prints.
OUTPUT 0 is for cycle complete and OUTPUT 4 is for faults. Check the Hardware
Reference guide in the Appendix for detailed on the input and output specifications.
All of the USER INPUTS and USER OUTPUTS are 24V DC with their own
common return. This CYCLE START input must be wired according to local and
federal safety codes for safe start operation. An anti-tie down, dual start button is
recommended. If additional inputs or outputs are utilized by the customer the
program must be modified for the needed function of this I/O. Zagar Incorporated
provides custom programming services to accommodate this or if the customer
chooses to do this modification, the software must be installed.
Disclaimer:
Zagar
Incorporated is in no way responsible for damage to the unit, the controls or any
equipment or personnel resulting from program modification done by parties
other than Zagar Incorporated.
Zagar Incorporated is available for wiring and
program modification at Zagar headquarters or on-site at customers location.
