770MX (MF/MH Serials) Knowledge Base
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Electrical Panel Layout and Fuse Table - 770MX

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REF

PN

Description

ECM1

37509

Machine Control Board

DR1

53488

X-Axis Driver (M Only)

DR2

53488

Y-Axis Driver (M Only)

DR3

53488

Z-Axis Driver (M Only)

DR4

32793

A-Axis Driver

PS1

50461

24 VDC Power Supply

D1

37514

Flyback Protection Diode

D2

37514

Flyback Protection Diode

K1

37515

Reset Relay

K2

37343

Spindle Contactor

BUS1

32005

DC BUS Board

VFD1

51123

Spindle Motor VFD

XFM1

37909

Transformer

SP1

37358

Suppressor

CB1

37521

Main Breaker

CB2

37521

Machine Breaker

CB3

37522

Accessory Breaker

CB4

37523

Auxiliary Breaker

EMI1

32350

EMI Filter

F1

38398

Fuse Holder

R1

37906

Brake Resistor (Side of Cabinet)

TS1

37420

Brake Resistor Thermal Switch (Side of Cabinet)

C1

30468

DC BUS Capacitor (Side of Cabinet)

Component

Fuse No.

Amperes

Speed

PN

DC BUS Transformer XFM1

F1

5A

Slow

38693

DC BUS Board BUS1

F1

8A

Fast

31655


F2

8A

Fast

31655


F3

8A

Fast

31655


F4

8A

Fast

31655


F6

10A

Slow

37949


F8

5A

Fast

30213

Machine Control Board ECM1

F1

3A

Slow

31120


F2

3A

Slow

31120