SIGNA MR355 / SIGNA MR360
Service Manual
5856356-3EN Revision 5.0
Basic Service Documentation. Copyright General Electric Company.
Object ID: 00000018WIA302CDF20GYZ
Topic ID: id_13106057 Version: 3.0
Date: Feb 22, 2021 9:54:01 PM

LOTO Global Operator Console / Operator Workspace

Prerequisites

Table 1. Personnel requirements
Required persons	Preliminary requirements	Procedure	Finalization
1	Not Applicable	10 minutes	Not Applicable

Table 2. Tools and test equipment
Item	Quantity	Effectivity	Part number	Manufacturer
Brass Master Padlock with Brass Shackle	2	-	46-194427P320	-
Red LOTO Personal Lock Wrap	1	-	2393068	-
Multi-Locking Device (if multiple service personnel are involved)	1	-	46-194427P313	-
Red Warning LOTO Tag	1	-	46-194427P322	-

About this task

Warning

Electrocution hazard

High voltage present.

Use proper LOTO procedures before servicing and/or maintaining.

Prior to performing work on the Global Operator Console (GOC) or items in the Operator Workspace, a LOTO-authorized GE Field Engineer (FE) must perform the steps in this Lock Out / Tag Out (LOTO) Procedure. Completing all steps in this procedure ensures a safe environment when working on these parts.

Table 3. Details of Procedure
Name of equipment	Number of locks	Titles of employees authorized to perform LOTO	Titles of affected employees	How to notify
Host PC and operator’s workspace equipment	1 per GE FE	GE FEs	Hospital Personnel	Verbal, Posted signs


Energy source	Yes	No	Location of energy isolating means	Magnitude of energy
Electrical	x		Power Distribution Unit (PDU) circuit breaker panel	120VAC
Pneumatic		x
Hydraulic		x
Gas/Water/Steam		x
Chemical		x
Mechanical Motion		x
Gravity		x
Springs		x
Thermal		x
Stored Energy		x
Air Under Pressure		x
Oil Under Pressure		x
Water Under Pressure		x
Gas Under Pressure		x
Steam		x
Other		x

PDU with Plastic breaker Cover- Sub-System Lockout

Procedure

From the Common Service Desktop, select Utility > System Shutdown and click Shutdown.

Figure 1. System Shutdown
Confirm that the GOC is shutdown.
Open plastic Cover. Remove power to the Operators Workspace by shutting off the HOST breaker on the front of the PDU.

Figure 2. Breaker locations on PDU
Lock and Tag the Breaker Panel on the PDU.

Figure 3. Lock and Tag the Breaker Panel

PDU with Plastic breaker Cover- Sub-System Lockout - Restoring Power

Procedure

Alert necessary personnel that power is being re-applied.
Remove the lock and the tag.
Open plastic door over the front of the PDU breakers and switch on HOST Breaker on the PDU.
The computer will run the boot Sequence.
Log in: signa
Password: adw2.0

Finalization

No finalization steps.