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Electrical Circuit Information
Overview
The following is an overview of the 686PT control circuit showing the safety related parts of the control
system.
Technical information consists of the following:
1-a. 686 PT Wiring 1&2Phase HV
1-b. 686 PT Wiring 3Phase HV
1-c. 686 PT Wiring 3Phase Delta HV
1-d 686 PTVT Wiring 1&2Phase HV
1-e 686 PTVT Wiring 3Phase HV
1-f 686 PTVT Wiring 3Phase – 1P pump HV
2-a. 686 PT Wiring LV
2-b. 686 Manual Wiring LV
2-c 686 PT Pyrometer Wiring LV
2-d 686 PTVT Wiring LV
2-e 686 PTVT Pyrometer Wiring LV
P3-b. 686 PT Pnumatics
P4. Major parts listing
Interlocking devices
Rear heater limit switch, SW2, prohibits Auto-level when closed.
Rear Heater Limit switch prohibits Pre-stretch, Release, and ‘Table Up’ command when open.
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