SIGNA™ Hero 3.0T Service Methods
5852800-8EN Revision 1.0
Object ID: 00000018WIA30A0D630GYZ
Topic ID: id_19326620 Version: 3.33
Date: Jan 26, 2022 4:46:00 PM

Cable routing and power/ground line connection

Prerequisites


Personnel requirements
Required persons	Preliminary requirements	Procedure	Finalization
2	-	6 hours	-

Topic ID: id_SL1968341-1178814

Integrated System Cabinet (ISC) PDU input voltage selection

About this task

Make sure all power to cabinet is off, locked, and tagged before connecting wires.

If three-phase WYE with neutral and ground (five-wire system) input is used, the neutral must be terminated inside the main disconnect control and not brought to the system cabinet.

Procedure

Open ISC cover.
Remove the ISC PDU bottom cover.
Before connecting the input power cables, determine the nominal value of the input voltage. The PDU allows for nominal input voltage of 380, 400, 415, and 480 VAC (three phase). For each three phases, be sure the wire is connected to the proper terminal for actual input voltage at the site and that the terminal screw is tight to make a good connection. For removal and installation of cable, refer to Figure 2.

Figure 1. Terminal

Note: For removal and installation of cable, see Figure 2.

Figure 2. How to remove/install terminal cable

Note: When removing or inserting cable, be careful not to insert the driver to the bottom terminal slot. It may cause the equipment damage if the cable connection of the terminal is loose.

Figure 3. Notice for removing and inserting cable
Pull all the cables at the terminal and make sure the cables are firmly connected to the terminal.

Figure 4. Cable connection check
Restore the ISC PDU bottom cover.
Remove the cover of the main breaker.
Set the overload and short circuit trip dip SW to the correct value corresponding to the input voltage.

Figure 5. DIP SW
Restore cover.

Topic ID: task_r45_gm3_fsb

General recommendations for cable routing

About this task

Maintain consistency in cable routing from system to system.
The minimum bend radius of any cable must not be violated. Refer to the cable specifications.
Excess cable should be stored.
Excess data cables should be stored in overhead cable trays or next to the closest penetration panel in a figure-eight pattern. For small figure-eight patterns, dress and tie-wrap middle of looped cables. For longer figure-eight patterns, dress and tie-wrap ends of looped cables.
Excess fiber optic data cable to be stored in overhead cable trays, penetration panel closet, or in magnet enclosure area must be routed in a circular pattern.
The 600V power cables should be routed in a separate section of the cable trays away from RF and below 300V cables.

Topic ID: id_SL1968351-1178814

Sorting and routing cables

About this task

Ty-wraps must be cut flush with no protruding sharp edges or points. Failure to do so can result in numerous laceration hazards when servicing the equipment.

Notice

Possible component damage

The fiber optic cable can easily be damaged by improper handling. Bending, twisting, kinking, or squeezing the cable may cause internal breaks along the fiber, resulting in poor performance or instability.

When working with fiber optic cable:

Avoid bending the fiber optic cable, or allowing the cable to hang, causing a macrobend in the cable.
Do not allow the end of the fiber optic cable to make contact with any surface, including direct contact with fingers. The optical coating on the lens is easily chipped and scratched.
Never run fiber optic cable without the protective caps in place.
Avoid pulling on the cable end, because this can damage the fiber optic.

Procedure

Align the cables according to Figure 8 or Figure 9.

Note: Routing for signal cables and power/ground cable is completed even though signal cable connection is not done in this section.

Note: IRD cable run P5006 (8775004-11) is not pre-attached to the magnet. It is packaged separately.

Figure 8. Scan room cable tray cross-section view for standard (on the wall) siting configuration

Figure 9. Scan room cable tray cross-section view for remote (off the wall) siting configuration


Item	Description	Run Number
1	300V signal, 300V power, and 300 V power/signal	M3314, M3311, M3313, M3315, M5001, M3023, M3022, M3391, M3379, M3300, M3339, 1265, 1502, M3030, M0011
2	Fiber optic	P5001, P5006
3	>= 600V coax/RF and AC power	M5003, M5004, M1500, M1504
4	Gradient and RF and AC power	M3317, M3318, M3319, M4005
5	Gas Lines (2)	Run 621 cold head gas line Run 622 cold head gas line
6	Air Hoses (4)	4 inch air supply (body coil) 4 inch air supply (patent air) 4 inch air return (body coil) 4 inch air return (patent air)
7	Water Hoses (2)	Blue water hose Black water hose
Note: * indicates optional cable

Remove four pre-attached cable brackets.

Figure 10. Pre-attached cable brackets (UA magnet)

Figure 11. Pre-attached cable brackets (AR magnet)
Before routing, make sure that the cable routing does not to prevent the hoist location.

Figure 12. Cable routing above cabinets

Route the cables on cable tray in equipment room and operator room in accordance with the applicable system interconnect diagram. Align the cable according to Figure 13.

Note: Routing for signal cables and power/ground cable is completed even though signal cable connection is not done in this section.

Figure 13. Cable routing in equipment room and operator room

Figure 14. Equipment room cable tray cross-section view for standard (on the wall) siting configuration

Figure 15. Equipment room cable tray cross-section view for remote (off the wall) configuration


Item	Description	Contents
1	300V signal, 300V power, and 300 V power/signal	E3311, E3313, E3314, E3315, E3360, E3302, E3303, E3391, E3324, E3379, E3300, E3534, E3532, E3533, E3316, E3031, E3023, E3022, E3030, E0011, E2018, E2019, 1265, 1502, E3014, E5001, E3020, E3040, E0010 Note: 1266 and 1501 are for oxygen monitor and Remote MRU (Optional).
2	Fiber optic	E5002, P5001, P5006
3	>= 600V coax/RF and AC power	E1001, E1002, E1051, E1302, E1303, E0011, E0009, E0003, E0007
4	Gradient and RF and AC power	E3317, E3318, E3319, E4005 Note: The customer will provide the Ground Cable of MDP – ISC.
5	Gas Lines (2)	Run 621 cold head gas line Run 622 cold head gas line
6	Air Hoses (2)	4-inch air supply (body coil) 4-inch air supply (patent air) 4-inch air return (body coil) 4-inch air return (patent air)
7	Water Hoses (2)	Blue water hose Black water hose
Note: * indicates optional cable

Plan for storage location of coiled cable excess length if cables are to remain at delivered length.

For fiber optic cables, see the notice above to ensure the cables are not damaged.

For non-fiber optic cables, store the cables as shown.

Figure 16. Proper storage of excess cables

Topic ID: id_SL1968357-1178814

Power and ground cable connection

Topic ID: id_SL1968358-1178814

System cabinet power cable connection

About this task

Connect the power and ground cable only. A ground resistance check will be completed.

On the main power cable, strip the cable covering material according to Figure 18.

Procedure

Install rear cable duct.

Figure 17. Install rear cable duct
Route facility input power cable and ground wire to the ISC top area. Route power cables and ground cable to the ISC top area.
- J100: Facility Power and Ground
- J101: RUN E0007 for Integrated Cooling Cabinet (ICC)
- J102: RUN E0003 for GOC
Connect power cables to ISC top terminal.
1. Note: Check the phase of customer supplied power cable (UVW or abc). Then, connect cables (UVW) to UVW at terminal or Cables (abc) to UVW at terminal at J100.
  Connect J100 cable.
2. Connect J101, and J102 cables.
  
  Note: For E0003 cable, There are two T3–G cables. Connect them at front and rear of T3–G terminal.
3. Clamp power and ground cables at cable clamp.
Note: Top covers will be installed after signal cable wiring. Leave the top covers removed during ground resistance check.

Figure 18. Power cable and ground cable connection

Topic ID: id_SL12257898-1178814

ICC power cable connection

Procedure

Route E0007 and GND cable.
Connect E0007 and GND cables according to the following illustration.

Figure 19. ICC power and ground cable wiring

Topic ID: id_SL12257902-1178814

GOC power cable connection

Procedure

Remove GOC covers.
Connect E0003 according to the following step.
1. Remove two screws and remove cable fixing plate.
2. Loosen two screws and remove plug cover by pulling up a little.
3. Connect E0003 cable.
4. Restore the plug cover and cable fixing plate in reverse order of removal.
Figure 20. GOC E0003 cable

Topic ID: id_SL1968366-1178814

Connection of magnet ground, Run M4005 for standard (on the wall) siting configuration

Procedure

Connect Run M4005 to the ground stud of ISC (scan room side). The other end is pre-connected to the magnet ground stud.

Figure 21. Ground studs location
Connect the other end of Run M4005 to the ground point of magnet.

Figure 22. Ground point of magnet

Finalization

After power/ground line connection, do Ground Resistance Check in Service Methods > Functional Checks > Grounding and Leakage Current > Ground Resistance Checks.

Topic ID: task_zmc_wjh_sqb

Connection of penetration panel ground and magnet ground for remote (off the wall) siting configuration

Procedure

Connect Run E4005 to the ground stud of ISC. See Figure 21.
Connect another side of Run E4005 to the ground stud Pen Panel (Equipment room side). See Figure 23.

Figure 23. Ground stud of Pen Panel
Item Description
1 Ground stud
2 Equipment room
3 Scan room
Connect Run M4005 to the ground stud of the ground stud Pen Panel (Scan room side). The other end is pre-connected to the magnet ground stud. See Figure 23.
Connect the other end of Run M4005 to the ground point of magnet. See Figure 22.

Note: After power/ground line connection, do Ground Resistance Check in Service Methods > Functional Checks > Grounding and Leakage Current > Ground Resistance Checks.