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Control cable test
The cutter head depends on clear, uninterrupted signal from the controller in order to work.
Damage to cable ends can cause poor connection, leading to many problems. If after
troubleshooting the cause of a problem is still not evident, it is worth checking the continuity
between corresponding pin numbers of the cable. It may also be worth checking for shorts
between pins.
To the left is a drawing showing the pin
numbers and locations.
Using a digital ohm meter set on the lowest resistance range, measure
between pins;
1 and 3 = 1.2 ohms
2 and 3 = 1.2 ohms
1 and 2 = 2.3 ohms
6 and 8 = 1.2 ohms
7 and 8 = 1.2 ohms
6 and 7 = 2.3 ohms
Readings may be slightly higher or lower depending on your meter
calibration.
A reading of 0 ohms indicates that the winding in shorted. A reading of
infinity indicates the winding is open. In either case the motor is no good
and must be replaced.
Operation of a defective motor can lead to burned out transitors on the drive
board.
Содержание 1000 4.5 Hot cutter
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Страница 66: ...Drive Transistor Test ...