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Appendix vii: ladder diagram - 120 vac – Tweco 3000 Merlin User Manual

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Manual 0-2532

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APPENDIX

APPENDIX VII: LADDER DIAGRAM - 120 VAC

5A, 250 VAC

AC

T1

MC1

MC2

W1

W2

PCR

K1-A

K5

K3

K4

K2

HFWS

110

110

93

24

24

LOGIC BOARD

23

50

5

75

SW3-A

88

89

SEC 02 N/C

SOL1 - PLASMA GAS

SOL3 - SECONDARY WATER

SOL2 - SECONDARY GAS

K5 (HV)

K5 (LV)

21

22

4

3

K4 (HV)

K3 (LV)

K3 (LV)

K4 (HV)

VOLTAGE SELECTION BOARD

NEON IND1

14

15

10

9

8

K1

SWITCHING CONTROL BOARD

(Energized by Enable Switch)

SW1-A

F2

SECONDARY

SELECTION SWITCH

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