Measurement Technology International Ltd EQ30 Troubleshooting

Mesurement Technology International Ltd

EQ30 ELECTRONIC RETROFIT HEAD
APPENDIX B - TROUBLESHOOTING INSTALLATION GUIDE
This Page was created/updated November 1, 2001 by -GHerb Barge

PROBLEM CAUSE SOLUTION

1 Display toggles between side "A" and side "B" DIP switch 1 is turned on Turn off switch

Bad CPU Replace CPU

Unit is in inspection mode Press enter on remote

2 Head does not reset Bad connection on optical handle switch Plug in switch
Re-do connections

Faulty optical switch Replace switch

Authorize circuit not wired properly Rewire if necessary

Programmed as console but
running as stand alone Program as stand alone

3 Motor tries to start with handle switch off. Sunlight getting to optical switch. Cover switch

Faulty controller TRIAC. Replace power supply.

Broken connections on optical switch. Repair connections or replace switch.

4 Console not receiving pulses. Pulser wires reversed. Correct wiring.

Head programmed as pulser "Off". Program for proper pulse width.

Jumpers JP4 and JP5 are reversed. Check and reposition.

5 Head resets but motor will not start. No power to motor TRIACs. Apply power to inputs.

Faulty motor TRIACs. Replace power supply.

6 Head calls console for authorization event with handle off. Incorrect wiring. Correct wiring.

Authorize line going to ground. Repair short in wiring.

Authorize line overloaded. Add snubber circuit Part #DH-EQ-snubber.

7 Cannot read totals or program head. Main display wiring harness reversed. Reverse harness wiring.

Faulty programmer. Replace batteries.
Replace programmer

Faulty receiver on main display. Replace main display.

8 Stand alone pump starts but stops after a short time, resets and starts again. See 17. If only one circuit at pumpfor everything, Fluorescent tube or ballast bad. Isolate other circuits from pump head power.

If Head power drops to less than 80 volts the computer will reset If motor is on the same circuit it may be drawing too
much power.
Put Head on its own power circuit.

Optical switch faulty. Replace optical switch.

9 Console pump starts okay but stops after short time, resets and calls in for authorization repeatedly. Optical handle switch bad connection. Replace optical switch.

10 Stand alone pump starts and stops while dispensing. See 17. Motor overload. Check breaker for motor power.

11 Display flashes erratically, strange characters appear Bad connections on wire harness or display board. Check connections on harness. Replace display board.

12. Console counts wrong amount of pulses from head. Pulse output from head does not match console. Program pulse output in memory section(03) until both units agree.

Pulser output fault, caused by wiring fault. Repair wiring then check for proper operation. If not: replace power supply.

13 Console or card system miscounts by multiple of 10,100,1000. Pulse output programmed incorrectly. Program section (62) for correct ppu amount.

14 Temperature probe B reads 3-10 degrees high or low on a 2 hose single product pump with two probes. Pump is programmed incorrectly. If programmed as 2 hose 1 product section (65) head will not read the second probe. Program pump as a 2 hose 2 product in section (65).

15 Pump shuts off at the same amount every time. Head is programmed for either a volume limit or a dollar limit in sections (06) or (07). To clear any presets enter sections (06) and (07) with all 9's.

16 Display shows ADC fail. Hardware failure on the CPU board. Replace CPU unit.

17 No response from handle switch in stand alone mode or console mode. No display change or flash. CPU Hardware fault. Replace CPU after checking for wiring or switch faults.
Check section (18) for diagnostic display of handle status.

18 After turnin g handle switch on nothing happens. Handle switch may be plugged into the wrong connector. Check and reverse handle connectors for handle switch.

19 Head rests normally but does not count pulses. Pulser may be plugged into the wrong connector. Check and reverse pulser connectors into the CPU.

APPENDIX C - TYPICAL PUMP SETTING

Example #1: TOKHEIM TWO HOSE TWO PRODUCT ON A CONSOLE
02 - Penny Console
03 - Penny .004
12 - CCL (counter clockwise)
60 - Gal.-Lt. 4 turns (Imperial Grey Meter)
60 - 512 pt. 2 turns (Metric-Green Meter)
62 - 10 PPU
65 - 2 Hose 2 Product
Example #2:RDR HIGH VOLUME PUMP ON DIEBOLD SYSTEM
01 - Non Price
02 - Penny Console
03 - Vol .002
12 - CL (clockwise)
60 - 500 Pt. 1 Turn
62 - 100 PPU
63 - Vol DP 4
65 - 1 Hose 1 Product
Example #3-BENNETT 2 HOSE 1 PRODUCT STAND ALONE
02 - Stand Alone
12 - CCL (counter clockwise)
60 - 512 Pt. 2 Turn
65 - 2 Hose 2 Product
(NOTE: Both motor input leads must be joined together and motor output leads must be joined together, even if the pump is a 2 hose 1 product, if two probes are used. It must be programmed as a 2 hose 2 product to enable the second probe.)
TYPICAL METER SETTINGS
Tokheim Imperial (Grey) Gal Lt 4 Turn CCL
Tokheim Metric (Green) 512 PT 2 Turn CCL
Bennett 512 PT 2 Turn CCL
Gilbarco,Wayne Gal Lt 4 Turn CCL

Trouble Shooting

National Parts Distributing Ltd - contact us at eri@npdl.com

PROBLEM	CAUSE	SOLUTION
1 Display toggles between side "A" and side "B"	DIP switch 1 is turned on	Turn off switch
	Bad CPU	Replace CPU
	Unit is in inspection mode	Press enter on remote
2 Head does not reset	Bad connection on optical handle switch	Plug in switch Re-do connections
	Faulty optical switch	Replace switch
	Authorize circuit not wired properly	Rewire if necessary
	Programmed as console but running as stand alone	Program as stand alone
3 Motor tries to start with handle switch off.	Sunlight getting to optical switch.	Cover switch
	Faulty controller TRIAC.	Replace power supply.
	Broken connections on optical switch.	Repair connections or replace switch.
4 Console not receiving pulses.	Pulser wires reversed.	Correct wiring.
	Head programmed as pulser "Off".	Program for proper pulse width.
	Jumpers JP4 and JP5 are reversed.	Check and reposition.
5 Head resets but motor will not start.	No power to motor TRIACs.	Apply power to inputs.
5 Head resets but motor will not start.	Faulty motor TRIACs.	Replace power supply.
6 Head calls console for authorization event with handle off.	Incorrect wiring.	Correct wiring.
	Authorize line going to ground.	Repair short in wiring.
	Authorize line overloaded.	Add snubber circuit Part #DH-EQ-snubber.
7 Cannot read totals or program head.	Main display wiring harness reversed.	Reverse harness wiring.
	Faulty programmer.	Replace batteries. Replace programmer
	Faulty receiver on main display.	Replace main display.
8 Stand alone pump starts but stops after a short time, resets and starts again. See 17.	If only one circuit at pumpfor everything, Fluorescent tube or ballast bad.	Isolate other circuits from pump head power.
	If Head power drops to less than 80 volts the computer will reset If motor is on the same circuit it may be drawing too much power.	Put Head on its own power circuit.
	Optical switch faulty.	Replace optical switch.
9 Console pump starts okay but stops after short time, resets and calls in for authorization repeatedly.	Optical handle switch bad connection.	Replace optical switch.
10 Stand alone pump starts and stops while dispensing. See 17.	Motor overload.	Check breaker for motor power.
11 Display flashes erratically, strange characters appear	Bad connections on wire harness or display board.	Check connections on harness. Replace display board.
12. Console counts wrong amount of pulses from head.	Pulse output from head does not match console.	Program pulse output in memory section(03) until both units agree.
12. Console counts wrong amount of pulses from head.	Pulser output fault, caused by wiring fault.	Repair wiring then check for proper operation. If not: replace power supply.
13 Console or card system miscounts by multiple of 10,100,1000.	Pulse output programmed incorrectly.	Program section (62) for correct ppu amount.
14 Temperature probe B reads 3-10 degrees high or low on a 2 hose single product pump with two probes.	Pump is programmed incorrectly. If programmed as 2 hose 1 product section (65) head will not read the second probe.	Program pump as a 2 hose 2 product in section (65).
15 Pump shuts off at the same amount every time.	Head is programmed for either a volume limit or a dollar limit in sections (06) or (07).	To clear any presets enter sections (06) and (07) with all 9's.
16 Display shows ADC fail.	Hardware failure on the CPU board.	Replace CPU unit.
17 No response from handle switch in stand alone mode or console mode. No display change or flash.	CPU Hardware fault.	Replace CPU after checking for wiring or switch faults. Check section (18) for diagnostic display of handle status.
18 After turnin g handle switch on nothing happens.	Handle switch may be plugged into the wrong connector.	Check and reverse handle connectors for handle switch.
19 Head rests normally but does not count pulses.	Pulser may be plugged into the wrong connector.	Check and reverse pulser connectors into the CPU.