Appendix part1

Motor Control—3 Phase

Figure A-1 Typical motor control circuit. Components: CB, 3-phase circuit breaker with thermal trip units; OL, motor thermal overloads; FU, fuse rated to protect the control circuit; control transformer configured for high- voltage input low-voltage output; Stop, Normally Closed push button; Start, Normally Open push button; M1, low-voltage control coil part of the motor controller.

Ladder Diagrams

Figure B-1 Emergency power off system (sheet 1 of 6).

Figure B-2 Emergency power off system (sheet 2 of 6).

Figure B-3 Emergency power off system (sheet 3 of 6).

Figure B-4 Emergency power off system (sheet 4 of 6).

Figure B-5 Emergency power off system (sheet 5 of 6).

Figure B-6 Emergency power off system (sheet 6 of 6).

Figure B-7 Punch press system (sheet 1 of 3).

Figure B-8 Punch press system (sheet 2 of 3).

Figure B-9 Punch press system (sheet 3 of 3).

DGH Corporation Modules

Figure C-1 Courtesy of DGH Corporation. See detailed specifications at www.dghcorp.com.

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