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OPERATION - MAINTENANCE

MICROPROCESSOR CONTROL

S70-200 OM/DEC 99

File:

SERVICE MANUAL - Section 70

Replaces:

S70-200 OM/MAR 99

Dist:

3, 3a, 3b, 3c

Содержание RWB II Plus

Страница 1: ...OPERATION MAINTENANCE MICROPROCESSOR CONTROL S70 200 OM DEC 99 File SERVICE MANUAL Section 70 Replaces S70 200 OM MAR 99 Dist 3 3a 3b 3c...

Страница 2: ...D PROGRAMMABLE CONTROLLER PROGRAM TO DECODE MICROPROCESSOR OUTPUT DATA CODES 14 MICROPROCESSOR OUTPUT DATA CODE 15 MICROPROCESSOR TELECOMMUNICATIONS 16 COMMUNICATIONS PROTOCOL SPECIFICATIONS 16 TROUBL...

Страница 3: ...the keyboard in the area outlined as a key will cause that function to be recognized by the microprocessor The keyboard has 32 membrane type keys In addition to the keyboard there is an emergency stop...

Страница 4: ...liquid crystal displays in an 8 line by 40 character format for a total of 320 characters There are 9 different display modes When power is first applied to the control panel the unit will be in the...

Страница 5: ...x pires and is intended to prevent damage to the compressor motor from successive restarts During Recycle Delay the microprocessor will alternatively flash RECYCLE DELAY and the remaining delay time i...

Страница 6: ...flashing brack ets will move or step to the next setpoint NOTE A setpoint entry outside the parameters of the Adjustable Setpoint display will be refused and the origi nal Adjustable setpoint will be...

Страница 7: ...nning begins after a 30 second delay which al lows the oil pump to build pressure HOW TO DETERMINE ADJUSTABLE SETPOINTS Adjustable Setpoints should reflect values compatible with normal system operati...

Страница 8: ...tpoints SHUTDOWN RECORD DISPLAY SHUTDOWN RECORD Thu 10 01 87 15 33 36 Use STEP key to advance PAGE Hi Oil Temp Cutout Wed 09 30 87 16 22 54 Comp Auxiliary Sat 08 22 87 09 47 02 Low Temp Cutout Thu 08...

Страница 9: ...Stop Start Stop Mon 06 00 Fri 16 00 Tue Sat Wed Sun Thu The F3 function key will call up the Setback display The Setback feature enables automatic operation at two sepa rate suction conditions on a p...

Страница 10: ...setpoints press for pressure capac ity control and temp for temperature capacity control CC The capacity control setpoint is for normal operation not setback CUTOUT This setpoint will stop the compres...

Страница 11: ...er 00 min Min SV 50 Active No for Temp Menu NOTE To change the Auto Cycle setpoints refer to TO CHANGE THE ADJUSTABLE SETPOINTS SUCTION PRESSURE Constantly monitors and displays the suction pressure i...

Страница 12: ...ust be less than or equal to the STOP setpoint in order to stop the compressor This setpoint works in conjunction with the Timer setpoint lo cated to the right of it on the Auto Cycle setpoints screen...

Страница 13: ...rted into binary code which the microprocessor understands The microprocessor scans the incoming data many times per second and compares the information it receives with the instructions programmed in...

Страница 14: ...mperature and reporting this information on the Operating display AT 158O F The microprocessor triggers the High Oil Temperature Alarm and displays the alarm on the Operating display and the Annunciat...

Страница 15: ...troller or Frick can supply this sequencer if desired contact Frick Company for pricing MASTER SEQUENCE CONTROLLER USUALLY PROGRAMMABLE CONTROLLER I O TYPICAL FOR EACH COMPRESSOR RWB II COMPRESSOR WIT...

Страница 16: ...pressor ID code I Return Status information command RETURNED ANSWER ie 090RRRN340 Character Description Position of returned data 1 2 3 Slide valve position 4 Remote Auto Manual slide valve 5 Delay re...

Страница 17: ...01A Start command sequence 01 Compressor ID code A Return full load amps command If the command was 01A then the micro processor would dump the full load amps value RETURNED ANSWER XXX 3 characters f...

Страница 18: ...oint y g or h for gauge or inches The following is the complete list of the setpoints that may be changed while in the change setpoints command 01xxxy Capacity Control Setpoint y deleted for KpaA BarA...

Страница 19: ...COMMAND Start command sequence ID Compressor ID code C Change setpoint command x numeric datum field y g or h for gauge or inches datum field or Sign datum field Command Prefix IDC datumID datum Desc...

Страница 20: ...other electromechanical functions The 0 15 volt DC side operates the computer and its various sensors The microprocessor console contains the SBC single board computer and two display screens When wo...

Страница 21: ...t the Oil Heater Relay is defective If you do not read 120VAC between Wires 9 and 2 when the LED for output 10 is on check the fuse FU10 SLIDE VALVE DOES NOT LOAD Verify that the Slide Valve is in the...

Страница 22: ...ditions are found check for 120VAC across Wires 10 and 2 If 120VAC is not found check the fuse FU9 CONTROL PANEL DOES NOT Inputs 2 through 4 can be used to operate the compressor from a remote RESPOND...

Страница 23: ...the oil pres sure transducer PE 1 and then open the vent valve which exposes the transducer to atmosphere 5 Once the time delays have expired 30 seconds for the alarm and an additional 10 seconds for...

Страница 24: ...ick Service for confirmation Dirty Filter 1 Push the key and record the Oil Pressure value from the analog offset display Example 2 2 With the machine running and maintaining good pres sures and tempe...

Страница 25: ...on the replacement board in exactly the same position as they were on the defective board 4 IMPORTANT Before installing the new board determine if there are gray yellow wires from P15 see the SBC wir...

Страница 26: ...L LEVEL SWITCH REMOTE RUN REMOTE LOAD REMOTE UNLOAD COMPRESSOR AUX COMPRESSOR START RELAY OIL PUMP SEL SW AUX 2 POWER POWER DATA BIT 0 DATA BIT 1 DATA BIT 2 DATA BIT 3 OIL HEATER RELAY OIL PUMP SEL SW...

Страница 27: ...13 GND 230 NEU 115 F1 1 P15 P10 BAT BATTERY 2 PORT OFF ON DIG I O EXPANSION 34 FUSES FU1 FU16 DIGITAL OUTPUT 16 DIG I O TERMS 17 MODULES MODULES 35 48 P6 PORT 1 3 U5 U4 C T SBC POWER SUPPLY WIRING 1A...

Страница 28: ...RATED FROM OTHER INDUCTIVE LOADS SUCH AS LIGHTING CIRCUITS OR FROM FRICK SUPPLIED OR SPECIFIED STARTER USE MINIMUM 12 AWG FOR FEED RED 25B 12 18 17 16 15 14 13 FU10 FU7 FU8 32 8 31 FU9 34 9 36 10 33 3...

Страница 29: ...OIL PUMP STARTER OL NEU OL NEU INDICATES DEVICES SUPPLIED ONLY WHEN OPTIONAL OR REQUIRED WIRING BY OTHERS ALL WIRING ENTERING CONTROL CENTER INCLUDING GROUND NEUTRAL TO BE 14 AWG STRANDED WIRES UNLESS...

Страница 30: ...RWB II PLUS MICROPROCESSOR CONTROL MAINTENANCE S70 200 OM Page 30 MICROPANEL ASSEMBLY WIRING DIAGRAM...

Страница 31: ...RING SPECIFICATIONS SEE 640C0031 FOR TEMPERATURE SENSOR ASSEMBLY 640C0031G11 ALL ANALOG LOW VOLTAGE WIRING TO BE RUN IN SEPARATE CONDUIT FROM ALL OTHER WIRING TEMP PROBE FRICK P N 640A0035H01 WELL FOR...

Страница 32: ...LL 333Q0000897 RELAY BASE FOR 333Q0000206 ABOVE 1 ALL 333Q0000207 RELAY 3PDT P B TYPE 1 ALL 111Q0451152 RELAY BASE FOR 111Q0451152 ABOVE 1 ALL 111Q0452442 FUSE 5 AMP b 5 ALL 333Q0000117 FUSE 2 AMP Rep...

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