NEC Codes if more current shall supercede this manual

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Julie Collins
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2 NEC Codes if more current shall supercede this manual WARNING! Be sure that the machine is properly grounded before applying power to the main control panel

3 -F-3 A Word About Proper Grounding Due to the wet environment of irrigation equipment, it is very important that your Pierce P93 Center Pivot Machine be properly grounded. The NEC (National Electric Code) requires a grounded conductor of a grounded utility system to extend to every piece of equipment served. This means that for a three-phase electrical system, three power wires and one ground wire are required between your main service entrance disconnect and the pivot panel. For center pivot equipment, this service entrance should be a fused disconnect switch located before the power cable goes underground to the center pivot machine. An irrigation system may be served from wye, open-delta, or grounded-delta transformers. The grounded-delta three-wire transformer, however, is not recommended because there are only three wires from the transformer to the service entrance. Most newer installations will have three power leads and a ground from the transformer to the main service entrance. If only three leads are provided from the transformer, a grounding lead should be installed from the transformer to the service panel to ensure a low impedance path-to-ground required due to the long lengths of wire used on pivot machines. Consult an electrician qualified to make this installation. In addition to the grounding circuit, two ground rods should be driven at the transformer, service disconnect or pump panel, and at the pivot panel. The ground rods should be connected to the enclosures with a minimum of No. 6 bare copper wire, and in accordance with the National Electric Code. When a generator is used as a power source, it should also be grounded, and grounds rod driven at both generator and pivot. Pierce Corporation November 2003

4 DIAGRAM PROVIDED FOR THE USE OF A QUALIFIED ELECTRICAN F-4- P93 Machine Schematic Figure F.4 March 2004 Pierce Corporation

5 DIAGRAM PROVIDED FOR THE USE OF A QUALIFIED ELECTRICAN -F-5 P93 Machine Schematic Figure F.4 Pierce Corporation March 2004

6 DIAGRAM PROVIDED FOR THE USE OF A QUALIFIED ELECTRICAN F-6- Standard Control Panel Inner Door ITEM PART NO. QTY DESCRIPTION WATER CONTROL 3 POSITION TOGGLE SWITCH FORWARD/AUTO/REVERSE SELECTOR SWITCH START PUSH BUTTON SWITCH * PUSH BUTTON SWITCH BLOCK NO PERCENT TIMER TRANSFORMER 480 V TO120 V 60HZ * TRANSFORMER 380/400/416 V TO 115 V 50 HZ * FUSE 6.25 A 1/4 X 1-1/ DISCONNECT SWITCH * DISCONNECT SWITCH FUSE KIT * DISCONNECT SWITCH HANDLE * DISCONNECT SWITCH HANDLE SHAFT * FUSE 20 A 600 V SAFETY RELAY FORWARD/REVERSE STARTER POSITION TERM BLOCK (LARGE) GROUND BAR POSITION TERM BLOCK * TERM BLOCK END Figure F.6 March 2004 Pierce Corporation

7 DIAGRAM PROVIDED FOR THE USE OF A QUALIFIED ELECTRICAN 5 -F-7 Standard Control Panel Connect High Leg To L Phase For FWD = CW Rotation Out To First Tower Control Panel External Ground Lug Driven Ground Rod Figure F.7 Incoming Power Pierce Corporation March 2004

8 DIAGRAM PROVIDED FOR THE USE OF A QUALIFIED ELECTRICAN F-8- Control Panel with All Tower Timer (ATT) Inner Door ITEM PART NO. QTY DESCRIPTION WATER CONTROL 3 POSITION TOGGLE SWITCH FORWARD/AUTO/REVERSE SELECTOR SWITCH START PUSH BUTTON SWITCH * PUSH BUTTON SWITCH BLOCK NO * PUSH BUTTON SWITCH BLOCK NO/NC PERCENT TIMER TRANSFORMER 480 V TO120 V 60HZ * TRANSFORMER 380/400/416 V TO 115 V 50 HZ * FUSE 6.25 A 1/4 X 1-1/ DISCONNECT SWITCH * DISCONNECT SWITCH FUSE KIT * DISCONNECT SWITCH HANDLE * DISCONNECT SWITCH HANDLE SHAFT * FUSE 20 A 600 V SAFETY RELAY ALL TOWER TIMER (ATT) FORWARD/REVERSE STARTER POSITION TERM BLOCK (LARGE) GROUND BAR POSITION TERM BLOCK * TERM BLOCK END 1 2 NOTE: See Page G-36 For Wiring Of First Tower Junction Box 3 4 Figure F.8 March 2004 Pierce Corporation

9 DIAGRAM PROVIDED FOR THE USE OF A QUALIFIED ELECTRICAN 5 -F-9 Control Panel with All Tower Timer (ATT) Connect High Leg To L Phase For FWD = CW Rotation Out To First Tower Control Panel External Ground Lug Driven Ground Rod Figure F.9 Incoming Power Pierce Corporation March 2004

10 DIAGRAM PROVIDED FOR THE USE OF A QUALIFIED ELECTRICAN F-10- Collector Ring Wiring WARNING! Do not attach Wire #6 to Wire #9 In From Control Panel NOTE: See Warning Reguarding Proper Ground Brush Wiring Page F-11. Out To Tower No. 1 Collector Ring In From Control Panel Out To Tower No. 1 Figure F.10 November 2003 Pierce Corporation

11 TERMINAL/L EAD # WIRE COLOR -F-11 Collector Ring Wiring CIRCUIT WIRE GAGE 1 PURPLE FORWARD CONTROL 16 2 YELLOW REVERSE CONTROL 16 3 ORANGE END TOWER CONTROL 16 4 PINK ALL TOWER TIMER 16 5 TAN END GUN 16 6 BLACK POWER 12 7 BROWN SAFETY 16 8 BLUE POWER 12 9 RED POWER WHITE NEUTRAL GREEN GROUND 12 NOTE: Wire Color In Span Cable Has Changed And May Change Without Notice. Tan Replaces Yellow/Red. WARNING: Wire Colors And Terminal Numbers Have Changed From Previous Editions. WARNING! It is crucial that the ground wire (green) be connected to the number 11 raceway brush, since this brush is also grounded to the collector ring base. Failure to do so may result in serious injury and/or electrical damage. ITEM PART NO. QTY DESCRIPTION * COLLECTOR RING BRUSH ASM ONLY (REPAIR) Pierce Corporation November 2003

12 DIAGRAM PROVIDED FOR THE USE OF A QUALIFIED ELECTRICAN F-12- Intermediate Tower Junction Box PREVIOUS 10 NEXT 10 Figure F.12.1 Figure F.12.2 November 2003 Pierce Corporation

13 NOTE: NOTE: NOTE: -F-13 Intermediate Tower Junction Box For All Tower Timer (ATT) See Page G-36 For Wiring Of First Tower Junction Box. For Double Cam IntermediateTower Box, , see page G-24 & G-25. For Complete Spare Parts For Intermediate Junction Box See Page F-16 & F-17. ITEM PART NO. QTY DESCRIPTION FORWARD/REVERSE MICRO SWITCH CLOSE TOLERANCE SAFETY MICRO SWITCH CAM TOWER ON-OFF DISCONNECT SWITCH TOWER MOTOR STARTER MOV - ARC REDUCER FOR COIL DISCHARGE SPIKES POSITION TERM BLOCK * TERM BLOCK END GROUND BAR MOTOR CABLE 4 COND 22-1/2 FT (STANDARD) * MOTOR CABLE 4 COND 33 FT (HIGH PROFILE) * STRAIN RELIEF 1/2" NPT X 1/2" ID * STRAIN RELIEF NUT 1/2" 10-2 SPAN CABLE * STRAIN RELIEF 1" NPT X 3/4" ID * STRAIN RELIEF NUT 1" * SPAN CABLE COND 127 FT * SPAN CABLE COND 127 FT * SPAN CABLE COND 147 FT * SPAN CABLE COND 147 FT * SPAN CABLE COND 167 FT * SPAN CABLE COND 187 FT * SPAN CABLE COND 207 FT * SPAN CABLE COND 129 FT (HIGH PROFILE) * SPAN CABLE COND 149 FT (HIGH PROFILE) * SPAN CABLE COND 169 FT (HIGH PROFILE) * SPAN CABLE COND 189 FT (HIGH PROFILE) Pierce Corporation November 2003

14 DIAGRAM PROVIDED FOR THE USE OF A QUALIFIED ELECTRICAN F-14- End Tower Junction Box Figure F Figure F.14.2 November 2003 Pierce Corporation

15 -F-15 End Tower Junction Box ITEM PART NO. QTY DESCRIPTION END TOWER RELAY BASE 8 PIN * END TOWER RELAY 120 VAC TOWER MOTOR STARTER MOV - ARC REDUCER FOR COIL DISCHARGE SPIKES POSITION TERM BLOCK * TERM BLOCK END GROUND BAR MOTOR CABLE 4 COND 22-1/2 FT (STANDARD) * MOTOR CABLE 4 COND 33 FT (HIGH PROFILE) * STRAIN RELIEF 1/2" NPT X 1/2" ID * STRAIN RELIEF NUT 1/2" 7-1 SPAN CABLE IN FROM PREVIOUS TOWER * STRAIN RELIEF 1" NPT X 3/4" ID * STRAIN RELIEF NUT 1" * SPAN CABLE COND 127 FT * SPAN CABLE COND 127 FT * SPAN CABLE COND 147 FT * SPAN CABLE COND 147 FT * SPAN CABLE COND 167 FT * SPAN CABLE COND 187 FT * SPAN CABLE COND 207 FT * SPAN CABLE COND 129 FT (HIGH PROFILE) * SPAN CABLE COND 149 FT (HIGH PROFILE) * SPAN CABLE COND 169 FT (HIGH PROFILE) * SPAN CABLE COND 189 FT (HIGH PROFILE) 8-1 PLUG (REMOVE FOR END GUN OPTION) 9-1 RUN LIGHT TOWER ON-OFF DISCONNECT SWITCH Pierce Corporation November 2003

16 F-16- Intermediate Tower Junction Box Components 19* 20* 17 NOTE: * Indicates Extra Parts For Double Cam Junction Box 21* * 22* 16 1* 24* Figure F.16 November 2003 Pierce Corporation

17 -F-17 Intermediate Tower Junction Box Components ITEM PART NO. QTY DESCRIPTION * MICRO SWITCH CLOSE TOLERANCE AJUSTABLE BASE FOR MICRO SWITCH CAM BUSHING BOLT 6-32 X 1/2" WASHER SAE # CAM SPRING MOTOR STARTER NUT CAM ARM WASHER SAE 1/4" LOCK NUT 1/4" TOWER ON-OFF DISCONNECT SWITCH POSITION TERM BLOCK * TERM BLOCK END JUNCTION BOX STAINLESS BASE GROUND BAR * BOLT 6-32 X 7/8" BOLT FILLISTER 1/4" X 3/4" CAM * BOLT HEX 1/4" X 3" * TOP CAM FOR DOUBLE CAM * RELAY 8 PIN 120 VAC * BOLT 8-32 X 1" * RELAY BASE 8 PIN * AJUSTABLE BASE DRILLED FOR DOUBLE CAM SETUP * DOUBLE CAM CONVERSION KIT (INCLUDES * ITEMS) Pierce Corporation November 2003

18 F-18- Notes November 2003 Pierce Corporation

A WORD ABOUT PROPER GROUNDING

A Word About Proper Grounding Section 5-3 A WORD ABOUT PROPER GROUNDING Due to the wet environment of irrigation equipment, it is very important that your Pierce CP600 Center Pivot Irrigation System be