Compact table test bench is used for quick and quality diagnostics of starters, alternators and voltage regulators without applying any additional measuring devices. The test bench possess high power, thus, units can be diagnosed under different loads. The equipment has small dimensions, it can be placed both in small service centers and big shops specialized in selling equipment. The bench includes the following diagnostic functions: testing of 12V and 24V alternators under load, 12V and 24V voltage regulators, 12V and 24V starters in idle running mode. Power supply is single-phase 220V, thus, there is no need industrial power supply.The device carries out testing of different alternators under load up to 100A. Connection of the 2nd battery is conducted from outside to the terminals on the bench body to achieve power supply of 24V for more convenient connection. Thus, usage of the 2nd battery is optional. New algorithms of testing have been implemented, meter accuracy has also been improved.
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The equipment set includes:
|Supply voltage, V||230±10%|
|Voltage of tested alternators, V||12/24|
|Drive power, kW||2,2|
|Load on a tested alternator, A||0-100|
|Drive speed, rpm||0-3000|
|Drive speed direction||Left/right|
|Drive speed adjustment||Smoothly|
|Transmission type (drive/alternator)||Belt|
|Read parameters||Voltage; alternating current; constant current; drive rotation. COM voltage regulators: protocol; speed of exchange; protocol type; errors|
|Belt type||V belt; timing belt|
|Voltage of tested starters, V||12/24|
|Power of tested starters, kW||Up to 4|
|Measured parameters||Voltage; alternating current; сonstant current|
|Connection terminals||«COM» (LIN, BSS), «P-D», «DFM», «D+», «RLO», «C», «SIG», «F/67»|
|Voltage of tested voltage regulators, V||12/24|
|Tested parameters of voltage regulators||Stabilizing voltage; current rotor winding. COM voltage regulators: protocol; speed of exchange; regulator type; errors|
|Voltage measurement accuracy, V||0,1|
|Current measurement accuracy, A||0,1|
|Short circuit protection||Yes|
|Short circuit sound alert||Yes|
|Terminals of tested voltage regulators||«COM» (LIN, BSS), «P-D», «DFM», «D+», «RLO», «C», «SIG»|
|Total check of voltage regulator, sec||30|
|Battery model #1||Identified according to the battery dimensions (L×W×H), mm, maximum: 207×175×175|
|Display parameters||Stabilizing voltage; rotor winding current. COM voltage regulators: protocol; speed of exchange; type of regulator; errors. DFM (alternator load control indicator, %)|
|Dimensions, (L×W×H), mm||570×505×480|
To clarify the efficiency of the alternator, it should be checked without load and under it, using the test bench for diagnostics of starters and alternators.
In the first case, the alternator is considered operable if the rotor speed at the rated voltage is less than or equal to the value specified in the technical requirements.
The scheme for testing the alternator under load is similar to the previous one, however, you must first set the load current. With this testing, the alternator is considered to be working if the required load current at the rated voltage is reached at a rotor speed that does not exceed the value specified in the specification for the alternator set.
Using the test bench for testing alternators and starters MS004 COM, observe the following diagnostic technology of the unit:
Fix the starter at the work site using automatic stretching.
Connect the power contact "B-" to the starter housing.
Select the operating voltage of the unit under test (12 or 24 V) on the stand console.
Connect the power contact "B +" to the power terminal of the unit, and the control output of the starter solenoid to the "50" connector.
Run the test function and track the current and voltage readings on the display of the test bench, and make sure that the starter's anchor rotates.
The solenoid relay on the starter during the diagnosis should also work. Otherwise, you should check the condition of the contact pins of the power terminals - they may be oxidized or the presence of carbon deposits.
This situation is possible as a result of violation of the equipment operation rules, or as a result of power supply voltage pulsation. Also you can test alternator voltage regulator with MS012 COM.
The most common cause of this malfunction is the ignition of the contacts of the magnetic switch. The solution is to replace the starter with a new one.