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800-WMAGNET

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2.2 Recognize Safety Information

This is the safety alert symbol. When you see this symbol on your magnet or in 

this manual, be alert to the potential for personal injury. Follow recommended 

precautions and safe operating practices at all times.

Red Background, White Letters

This indicates a situation in which a 

hazard is imminent and will result in a high 

probability of serious injury or death.

These are

Hazard

Seriousness

Signal

Words

Orange Background, Black Letters

This indicates a potentially hazardous 

situation, which could result in some 

probability of serious injury or death.

Yellow Background, Black Letters

This indicates a potentially hazardous 

situation, which could result in minor injury 

or moderate injury.

2.2.1 Ways to Avoid a Reduction of Holding Capacity

To Avoid any Reduction of Holding Capacity:

• 

The holding surface of the chuck and the contact area of the workpiece where it will 

contact the chuck must be clean, smooth, flat, and free of nicks and burrs.

• 

The surface of the workpiece must contact equal areas of the chuck’s opposite 

polarity, major magnetic poles.

• 

The load must be low carbon steel such as SAE 1020.

• 

The chuck control must provide “FULL” power to the chuck, that is, maximum output 

voltage.

• 

The workpiece thickness must be at least equal or greater than the width of the 

chuck’s major magnetic poles.

• 

The temperature inside the chuck control enclosure must not be greater than 104° 

Fahrenheit (40° Celsius), nor the temperature of the chuck must not be greater than 

110° F (43° C).

• 

Repair of this chuck control should only be done by the O. S. Walker Co.*

If you have any difficulty holding a work piece, DON’T attempt to machine it! Call the 

O.S. Walker Co. for advice at 1-800-962-4638.

Summary of Contents for IMI Smart-D Series

Page 1: ...rs 3 2 3 1 6 Transformer Wiring Diagram 3 3 3 1 7 Connecting Optional Features 3 4 3 1 8 Current Sensing 3 4 3 1 9 Part Release 3 4 3 1 10 Lockout 3 4 3 1 11 Energizing the System 3 4 3 2 CONTROL MOUN...

Page 2: ...LACEMENT PARTS LIST 5 19 6 RETURN AND REPAIR INSTRUCTIONS 6 1 TABLE OF TABLES TABLE 5 1 TERMINAL TB1 5 3 TABLE 5 2 CONNECTOR J4 5 3 TABLE 5 3 CONNECTOR J5 5 3 TABLE 5 4 REMOTE TB TBR LOCATED IN REMOTE...

Page 3: ...arefully to learn how to operate and maintain your chuck control Failure to do so could result in serious injury or even death to yourself and others This manual should be considered a permanent part...

Page 4: ...is energized Never operate the control and chuck until it has been verified that a proper electrical ground for the control and Chuck has been established Never operate damaged or malfunctioning cont...

Page 5: ...a Reduction of Holding Capacity To Avoid any Reduction of Holding Capacity The holding surface of the chuck and the contact area of the workpiece where it will contact the chuck must be clean smooth...

Page 6: ...romagnetic device MUST be connected to a proper electrical ground According to ANSI NFPA 79 1997 an American National Standard Electrical Standard for Industrial Machinery Section 19 3 Equipment Groun...

Page 7: ...le be used for the remote unit wiring and that the conduit be run six 6 inches from all other parallel conduit runs The remote unit wiring must include a ground wire that is connected to the chassis o...

Page 8: ...vement over the full range of table travel 3 1 4 Connecting the AC Input voltage The input transformer can be tapped for nine different input voltages 208 220 230 240 380 416 440 460 and 480 VAC Refer...

Page 9: ...4 terminals 1 and 2 The second is to sink the positive voltage at J5 terminal 8 This is done using a dry contact connected to terminal 8 lockout and terminal 13 GND on J5 See Figure 5 5 for locations...

Page 10: ...erefore anything that creates a space or an air gap between the magnet and the workpiece limits the flow of magnetic lines of force and thus reduces the holding capacity of a magnetic chuck Magnetic C...

Page 11: ...n be adjusted from zero to full with the Variable control knob A varying amount of Residual hold can be achieved by turning the Variable control knob to zero from its previous holding position without...

Page 12: ...10 11 12 13 14 15 16 Variable Lamp LED X X X X X X X X Residual Lamp LED X X X X X X X X Full Lamp LED X X X X X X X X Release Lamp LED X X X X X X X X X indicates lamp led is on 3 Once the number of...

Page 13: ...section If AC power is interrupted while the control is running the control returns to the mode of operation selected just prior to loss of power This allows easy resumption of machining after an AC...

Page 14: ...feature that monitors the current flowing to the chuck and indicates when this current has reached a predetermined value The predetermined value is set by adjusting the variable potentiometer to the...

Page 15: ...ted and it does not respond to any operating mode Input voltage is too low or wired incorrectly Remote unit is not properly wired a Verify the input voltage to the control unit see Installation sectio...

Page 16: ...J4 1 2 Lockout Supply Relay Contacts 3 4 5 Part Released Signal Relay Contacts 6 7 8 Current Sense Relay Contacts Table 5 3 Connector J5 1 50K Ohm Variable Potentiometer 2 GND 3 Release Lamp 4 Variabl...

Page 17: ...to J5 2 TBR 3 to J5 3 TBR 4 to J5 4 TBR 5 to J5 5 TBR 6 to J5 6 TBR 7 14 to J5 7 TBR 8 NC TBR 9 to J5 9 TBR 10 to J5 10 TBR 11 to J5 11 TBR 12 to J5 12 TBR 13 to J5 13 5 5 Interface J4 1 Lockout Sign...

Page 18: ...800 WMAGNET 18 of 33 5 6 Smart 75 100D Panel Layout Figure 5 1 Smart 75 100D Panel...

Page 19: ...800 WMAGNET 19 of 33 5 7 Smart 20 30 50D Panel Layout Figure 5 2 Smart 20 30 50D Panel...

Page 20: ...800 WMAGNET 20 of 33 5 8 Smart 7 10 15D Panel Layout Figure 5 3 Smart 7 10 15D Panel...

Page 21: ...800 WMAGNET 21 of 33 5 9 Smart 3 5D Panel Layout Figure 5 4 Smart 3 5D Panel...

Page 22: ...800 WMAGNET 22 of 33 5 10 Main PC Board Figure 5 5 Main PC Board...

Page 23: ...800 WMAGNET 23 of 33 5 11 Smart 75 100D Wiring Reference documentation included for schematics Figure 5 5 Main PC Board...

Page 24: ...800 WMAGNET 24 of 33 5 12 Smart 20 30 50D Wiring Reference documentation included for schematics Figure 5 7 Smart 20 30 50D Wiring...

Page 25: ...800 WMAGNET 25 of 33 5 13 Smart 7 10 15D 115V Wiring Reference documentation included for schematics Figure 5 8 Smart 7 10 15D 115V Wiring...

Page 26: ...800 WMAGNET 26 of 33 5 14 Smart 7 10 15D 200V Wiring Reference documentation included for schematics Figure 5 9 Smart 7 10 15D 230V Wiring...

Page 27: ...800 WMAGNET 27 of 33 5 15 Smart 3 5D 115VDC Wiring Reference documentation included for schematics Figure 5 10 Smart 3 5D 115VDC Wiring...

Page 28: ...800 WMAGNET 28 of 33 5 1 Smart 3 5D 230VDC Wiring Reference documentation included for schematics Figure 5 11 Smart 3 5D 230VDC Wiring...

Page 29: ...SD5 MSD7 MSD10 MSD15 MSD20 MSD30 MSD50 MSD75 MSD100 WIDTH W 12 20 24 24 HEIGHT H 20 30 30 30 DEPTH D 8 10 12 12 MTG HOLE DIAMETER 44 44 44 44 MTG HOLES HORIZONTAL SPACING V 9 50 14 18 18 MTG HOLES VER...

Page 30: ...800 WMAGNET 30 of 33 5 3 Remote Enclosure Dimensions Figure 5 12 Remote Enclosure BB 8783...

Page 31: ...800 WMAGNET 31 of 33 5 4 Remote Wiring Connections Figure 5 13 Remote Wiring Connections...

Page 32: ...ain PC Board 39 DD14329 39 DD14520 39 DD14520A Remote Control 56 BB8783 Transformer T1 208 480 Volt 12 0094 12 2001 12 0302 12 0504 12 0355 SCR Module N A 23 4048 N A N A N A Relay K1 N A 13 0220 13 0...

Page 33: ...ed along with any applicable packaging and shipping instructions After receipt of the components to be repaired O S Walker Company will perform an inspection and provide an estimate of the repair cost...

Page 34: ...1 800 W MAGNET WWW WALKERMAGNET COM 900632 A 07 21...

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