Term
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Definition
| provide the means for operator to control movement of control rods |
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Term
| RMCS System Design (per B Manual) |
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Definition
| Provide the operator with the means for selecting one of 121 control rods and moving that selected rod into some desired position. All rod movements except scram are accomplished by means of the RMCS. |
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Term
| Function of ROD SELECT pushbuttons |
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Definition
| "Connect the four directional control solenoid valves of the selected rod to the Drive-in, Drive-out, and Drive-out/Settle busses of the RMCS." |
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Term
| Color of edge rod pushbuttons and purpose for this color |
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Definition
| Blue; to aid in determining which rods will bypass the RBM when selected |
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Term
| What is the power to the ROD SELECT pushbutton modules? |
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Definition
| 28 Vdc power supply located in panel C-05 |
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Term
| Positions of the ROD MOVEMENT CONTROL switch |
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Definition
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Term
| Positions of the ROD OUT NOTCH OVERRIDE switch |
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Definition
| NOTCH OVERRIDE and EMERG ROD IN |
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Term
| Which control switch positions result in continuous rod movement? |
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Definition
| ROD IN; ROD OUT NOTCH OVERRIDE plus ROD OUT NOTCH; and EMERG ROD IN |
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Term
| What is bypassed when using EMERG ROD IN? |
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Definition
| "All rod movements control interlocks, except the RWM insertion block, are bypassed. Also, the rod drive timer switch is bypassed." |
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Term
| Rod withdrawal and insert lights (colors) |
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Definition
| Withdrawal: red; Insertion: green. |
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Term
| Discuss the rod drive timer switch failure interlock |
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Definition
| Prevents inadvertent continuous rod withdrawal in the event the rod drive timer switch should fail while a rod withdrawal movement is in progress. Causes the directional control solenoid valves of the selected rod to be disconnected from the drive control busses of the RMCS following a time delay of approx two seconds. |
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Term
| What is the indication that the directional control solenoid valves have been connected to the drive busses of the RMCS? |
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Definition
White "rod select" indicating light on full core display for that rod is lit. NOTE: for rod drive timer switch failure, this light goes out but the rod select matrix light for the associated rod remains on. |
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Term
| What happens when a control rod is selected? |
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Definition
| Associated directional control valves are connected to the drive busses. |
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Term
| What happens if ROD SELECT POWER switch is placed in the OFF position during a rod drive timing cycle? |
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Definition
| "Power is continued to be supplied until rod motion signal is terminated, at which time power is interrupted." |
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Term
| What are the Power Range rod blocks associated with power instruments, regardless of MODE? |
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Definition
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Term
| "What are the rod blocks associated with power instruments, with the mode switch in RUN?" |
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Definition
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Term
| "What are the rod blocks associated with power instruments, with the mode switch in START TO HOT STBY, or REFUEL?" |
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Definition
SRM channel detector not fully inserted into the core when the SRM level is less than 100 cps and when any IRM range switch is in either of the two lowest range positions; SRM UPSCALE; SRM INOP; IRM not fully inserted; IRM UPSCALE; IRM DOWNSCALE except when on range 1; IRM INOP.
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Term
| What is the power source to the 28 Vdc power supply? What powers everything else? |
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Definition
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Term
| What is the General Precaution associated with the EMERG ROD IN function? |
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Definition
| "Should not be used for making normal control rod insertions since such insertions are not followed by a "settle" cycle. Also, all RMCS rod insert interlocks (excluding RWM insert block) are bypassed." |
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Term
| List indications of RPIS INOPERATIVE |
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Definition
From ARP 5-A-36: Indications: If Full Core Monitor Position Displays are operable, AND Four Rod Group Displays are inoperable (DEPENDENT) Annunciator 5-A-35 (RWM ROD BLOCK) in Alarm (DEPENDENT)
Automatic Actions: FROM TRAINING CENTER: - No control rods are able to be selected - The ROD SELECT pushbutton indicating light and the associated indicating light on the full core display for the previously selected rod are OFF - The 2 SEC SELECT BLOCK red indicating light on C-05 panel is ON - The ROD SELECT POWER switch on C-05 Panel is ON |
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