SAJ PDM20 series, Руководство пользователя

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PDM20 Series
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(2) Check if there is short circuit or ground connection between motor leads. If yes,
please eliminate it.
(3) If switch stripping off occurs occasionally and the distance between motor and
inverter is far, consider to add output AC reactor.
5.2.5 It doesn’t stop in no water use.
(1) Check whether the feedback pressure displayed on the SPD board is no less
than set pressure. If the feedback pressure is less than set pressure, please check
whether the range of the pressure sensor is set correctly, whether the pump rotates
reversely, whether there is air and whether the inlet is blocked by sundries.
(2) If the feedback pressure is no less than set pressure, please decrease the set
value of P0.09 and increase P0.11.
(3) If feedback pressure changes nearby set value, stop the SPD manually and see
whether the pressure decreases. If yes, check valve needs to be changed.
5.2.6 It can’t sleep in small amount of water use or leakage
(1) If it can’t sleep or the sleep time is too long, decrease P0.09 and increase P0.11,
If it is still not effective, increase P0.31.
(2) If it sleeps in advance, first increase P0.09. If it is still not effective, decrease
P0.20.
(3) If it starts and stops frequently, first increase P0.09. If it is not effective,
increase P0.20. If it is still not effective, increase P0.01.
5.2.7 It can’t stop to make protection in water shortage.
(1) Water shortage protection switch P0.25 is not enabled.
(2) The threshold value of water shortage detection P0.26 is set too low.
(3) The current percentage of water shortage detection P0.28 is set too low.