Altronic CPU-2000 Instrução de serviço - Página 15

Procurar online ou descarregar pdf Instrução de serviço para Sistemas de controlo Altronic CPU-2000. Altronic CPU-2000 20 páginas. Ignition system

4.0 TESTING PROCEDURE -CPU-2000 OUTPUT MODULES 291116-1, 291132-1

4.1 VOLTAGE OUTPUT TEST - Connect the Output Module to a test Logic Module. Reference

Installation Instructions form CPU-2000 II for correct wiring of the Logic Module. Set Logic Module

for energy level 2 (E2). Operate the test stand at 360 RPM leaving the 19-pin connector(s)

disconnected. Output voltage is measured from the "P" pin (+) to the "N" pin (-) and from the "P" pin

(+) to the "V" pin (-) with an oscilloscope. The output voltage should be 320 ±10 Vdc for both

measurements.

4.2 OPERATIONAL TEST - With the system completely connected, perform the following tests on the

Output Module. It is recommended that these tests be performed with the CPU-2000 Output Module

heated to a temperature of 150

for 16-output units and a P8A180.HC memory for 32-output models, assuming the test stand uses

a 180 tooth gear.

180 TOOTH

GEAR RPM

75 RPM

360 RPM

5.1 CPU-2000 OUTPUT MODULE - The following tests should be made using a Simpson Model 260

analog volt-ohmmeter (VOM) set to "ohms". The ohmmeter scale should be set to "Rx 10,000".

Readings outside the range indicated establish a defective Output Module. A unit passing the

ohmmeter tests may still be defective and the full test should be performed using an oscilloscope

(see sections 6.0) to confirm correct operation.

Check the resistance with the negative lead of ohmmeter connected to the "N" lead and the

positive lead connected to each output pin of the output (top) connector. If ohmmeter reading

is less than 250,000 ohms replace the Top Power Board (3-3, 4-3).

Check the resistance with the negative lead of ohmmeter connected to the "V" lead and the

positive lead connected to each output pin of the output (top) connector. If ohmmeter reading

is less than 250,000 ohms replace the Top Power Board (3-3, 4-3).

Check the resistance with the positive lead of ohmmeter connected to the "P" lead and the

negative lead connected to each output pin of the output (top) connector. If ohmmeter reading

is less than 250,000 ohms replace the Top Power Board (3-3, 4-3).

F. (65

TEST

All outputs fire a 15mm gap.

Each cylinder fires consistently in sequence: Timing as follows starting with output "A"

and proceeding in alphabetical sequence:

Unit 291116-1:

Unit 291132-1:

A 1-A2-B 1-B2-C1-C2-D1-D2-E 1-E2-F1-F2-G 1-G2-H 1-H2-

J 1-J2-K 1-K2-L 1-L2-M 1-M2-R 1-R2-S 1-S2-T1-T2-U 1-U2

Note: X1

C.). Tests should be performed using a P4A180.HC memory

A-B-C-D-E- F -G - H - J-K-L-M-R-S-T-U

upper connector; X2

-15-

lower connector