Figure 17.2 typical emergency stop circuit – Rockwell Automation 8520 9/Series CNC Integration Maintenance Manual Documentation Set User Manual

Page 878

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Section 17

Installing 9/Series for CE Compliance

17-6

Figure 17.2

Typical Emergency Stop Circuit

MTB PANEL

Motherboard/Processor Board

MACHINE

DRIVES ENCLOSURE

SYSTEM INSTALLER OPTIONS

Motor thermal switches

may be connected

directly

Extreme overtravel

switches

Reset

button

E-STOP

button

Contactors for E-STOP status controlled

devices (servo amp contactor, indicators,

brakes, coolant pumps, etc.)

Drive System Ready

Remote

E-STOP

button

15 V dc

from main

power supply

Reduced

to 12 V dc

filter

250mA

E-STOP relay K

1

12 V dc coil

Contact ratings:

30 V dc

1.4 A

Software

controlled

E-STOP

circuit

K

1B

K

1A

1

2

3

4

5

6

7

common

Customer-supplied

dc power

CR

CR

+

--

customer supplied

fuse (size to protect K1b

contact and your E-Stop

status relay)

E-STOP status

relay

8

Important:

If your control has terminal 8,

then connect it to chassis ground. If

terminal 8 is not present on your control,

then this type of grounding is not necessary.

Ferrite Suppressor Core

Ferrite suppression cores can be aquired through several vendors, including

Dexter Magnetic Materials Division (DMMD):

Country

Phone

Germany

089-857-3071

United Kingdom

0753-680011

United States

1-800-345-4082

Ferrite

Suppression

Core

Specification

Manufacturer

Part Number

250W @ 100 MHz Fair--Rite Corporation

Newark

0443164151

95F 762

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