HGMS61 Genset Controller User Manual Page 31 of 47
7.5 CONDITIONS OF CRANK DISCONNECT
Table 15 – Crank Disconnect Conditions
a) There are 3 kinds of crank disconnect conditions. Speed, Generator frequency and Oil pressure can
be used alone. Oil pressure is used with speed and the generator frequency together is
recommended, in order to make the starter and the engine disconnect as soon as possible.
b) Speed sensor is a magnetic device installed on the engine body to test the number of flywheel
teeth.
c) When choosing speed, ensure the number of flywheel teeth is the same as the preset, otherwise
over or under speed shutdown may occur.
d) If generator has no magnetic pickup sensor, don't choose speed item; otherwise Fail to Start or
Loss of Speed Signal shutdown will occur.
e) If the generator has no oil pressure sensor, don't choose corresponding item.
f) If generator frequency has not been selected, controller will not measure and display the relative
parameters (can be applied to the pump set); if speed has not been selected, the rotating speed will
be calculated by the generating AC signal.
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