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ASTAT 

®

-IBP Plus Service Instructions

6

Prices and data subject to change without notice.

SCR Module Replacement (Sizes K, L,

and Y)

This procedure requires the following tools and

materials:

• #2 Philips-head screwdriver, 

3

/

16

" Allen wrench,

torque wrench

• Scotchbrite or equivalent abrasive
• Mild solvent to clean mounting surfaces
• Electrolube 2GX or equivalent thermal grease

1.

Loosen  the screws holding the MOVs and bus bars

to the SCR Module to be replaced, as illustrated in

Figure 12, and remove the MOVs and bus bars.

2.

Remove the mounting screws at each end of the SCR

Module, as shown in Figure 13, then lift out the

Module. Retain all the parts and hardware removed

from the SCR Module for reassembly with the

replacement Module.

3.

Clean the heat sink surface of the replacement

Module with a fine abrasive, such as Scotchbrite.

Remove all particles from the heat sink surface and

wipe the SCR mounting surface with a mild solvent.

Apply a light coat of thermal grease, such as

Electrolube 2GX to both the SCR and heat sink

surfaces.

4.

Place the contact face of the SCR Module on the

mating heat sink surface. Move the Module back

and forth several times to distribute the thermal

grease evenly over the contact surfaces.

5.

Attach the SCR Module to the heat sink with the

screws removed earlier. Tighten the screws to 44 in-

lb.

6.

Reattach the bus bars and MOVs to the SCR Module

with the screws removed earlier. Tighten the screws

to 26 in-lb.

Figure 12. Removing the MOVs and bus bars from an SCR to be

replaced.

Figure 13. Removing the SCR module.

Содержание ASTAT-IBP Plus

Страница 1: ...g ASTAT IBP Plus Solid State Starters DEH 40417 Service Instructions ...

Страница 2: ......

Страница 3: ... time of its publication While efforts have been made to ensure accuracy the information contained herein does not cover all details or variations in hardware and software nor does it provide for every possible contingency in connection with installation operation and maintenance Features may be described herein that are not present in all hardware and software systems GE Electrical Distribution C...

Страница 4: ...moval and Replacement 1 Logic Board Replacement 2 Power Supply Board Replacement 3 Protection Board Replacement 5 SCR Module Replacement Sizes K L and Y 6 SCR Module Replacement Sizes M Z and N 7 SCR Module Replacement Sizes P Q and R 8 SCR Module Replacement Size S 9 Trouble Shooting Guide 11 Renewal Parts List 12 ...

Страница 5: ... release the terminal connector from the pins Carefully pull the terminal connectors with the wiring straight off the ASTAT IBP starter 2 Remove the plastic cover by pressing and releasing the plastic tab on each side of the cover with a flat head screwdriver as illustrated in Figure 2 3 To reattach the cover lower it over the circuit boards Carefully push down on the cover until the two tabs snap...

Страница 6: ...offs below the Logic Board Lift the Logic Board straight up to remove it as illustrated in Figure 4 4 Reassemble the Logic Board to the starter With the display on the Logic Board at the upper left corner place the board on the stand offs Reattach the four screws holding the Logic Board to the stand offs 5 Reattach the two ribbon cables Ensure that the ribbon cable at the bottom of the ASTAT IBP i...

Страница 7: ...rd to facilitate reassembly NOTE Vérifier les chiffres sur les fils de porte avant d enlever ceux ci Chaque fil de porte doit avoir un chiffre correspondant aux chiffres de la borne 1 12 sur la plaque de la boîte d alimentation pour faciliter le réassemblage 4 With a small screwdriver remove the red and white gate wires from the small four point gate Terminal Boards one on the component side and t...

Страница 8: ... as illustrated in Figures 8 9 and 10 8 Secure the Power Supply Board with the four screws removed earlier 9 Reinstall the following components a The Logic Board as described in steps 4 5 of Logic Board Replacement d The cover as described in steps 3 4 of Cover Removal and Replacement Figure 8 Gate lead connections for sizes K L and Y Figure 9 Gate lead connections for sizes M Z and N Figure 10 Ga...

Страница 9: ...Label these leads to ensure that they are connected to the same terminals on the new Protection Board 4 Loosen the four screws holding the Protection Board to the housing Remove the Protection Board from the ASTAT IBP 5 Place the new Protection Board in position in the ASTAT IBP and secure it with the four mounting screws to the housing 6 Attach the four current transformer leads and the two therm...

Страница 10: ...the SCR Module for reassembly with the replacement Module 3 Clean the heat sink surface of the replacement Module with a fine abrasive such as Scotchbrite Remove all particles from the heat sink surface and wipe the SCR mounting surface with a mild solvent Apply a light coat of thermal grease such as Electrolube 2GX to both the SCR and heat sink surfaces 4 Place the contact face of the SCR Module ...

Страница 11: ...ed from the SCR Module for reassembly with the replacement Module 3 Clean the heat sink surface of the replacement Module with a fine abrasive such as Scotchbrite Remove all particles from the heat sink surface and wipe the SCR mounting surface with a mild solvent Apply a light coat of thermal grease such as Electrolube 2GX to both the SCR and heat sink surfaces 4 Place the contact face of the SCR...

Страница 12: ...ve the MOV by disconnecting it at the spade connectors Attach the MOV to the replacement SCR Module in the same manner 7 Clean the heat sink surface of the replacement Module with a fine abrasive such as Scotchbrite Remove all particles from the heat sink surface and wipe the SCR mounting surface with a mild solvent Apply a light coat of thermal grease such as Electrolube 2GX to both the SCR and h...

Страница 13: ...sconnect the wiring harness of the CTs 2 Remove the bolt holding the busbars connected to the blocks on the load and line sides of the SCR Module as shown in Figure 18 3 Remove the bolt holding the CT the threaded stud and the load side busbar from the Module 4 Remove the bolts holding the load side lug in place Remove the lug 5 Remove the L shaped busbar and CT if applicable from the assembly as ...

Страница 14: ...f thermal grease such as Electrolube 2GX to both the SCR and heat sink surfaces 10 Place the new SCR Module in the proper position on the mounting surface Move the Module back and forth several times to evenly distribute the grease on the plate 11 Secure the SCR Module to the mounting plate with the screws removed earlier Tighten the screws to 44 in lb torque 12 Reattach the load side lug L shaped...

Страница 15: ... 1L1 phase Short circuited thyristor Check thyristor module Check ground connections and voltage to ground Poor ribbon cable connection Phase A B C thyristor Ex14 Ex15 Ex16 No output phases Check 2T1 4T2 2T1 4T2 and 6T3 6T3 phases Heatsink thermostat Ex17 Heatsink thermostat tripped by overheating or defective Check for adequate ventilation Check thermostat and wiring Motor thermistor Ex18 Motor t...

Страница 16: ...X000135 1 295 00À QI3 Y M DP QIX000136 1 475 00À QI3 Z N DP QIX000137 1 945 00À QI3 P Q R DP QIX000138 1 1800 00À Bypass Contactor QI3SDP QIX000139 1 2700 00 QI3KDP QIX000140 1 140 00 QI3LDP QIX000141 1 140 00 QI3YDP QIX000142 1 140 00 QI3MDP QIX000143 1 140 00 QI3ZDP QIX000144 1 140 00 QI3NDP QIX000145 1 140 00 QI3PDP QIX000146 1 140 00 QI3QDP QIX000147 1 140 00 QI3RDP QIX000148 1 140 00 Protecti...

Страница 17: ......

Страница 18: ...th installation operation or maintenance Should further information be desired or should particular problems arise that are not covered sufficiently for the purchaser s purposes the matter should be referred to the GE Company g GE Industrial Systems General Electric Company 41 Woodford Ave Plainville CT 06062 DEH 40417 0901 2001 General Electric Company ...

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