BPD series PV pumping inverter Commissioning guide
67
P15.24=400.0 (Max. reference voltage)
(3) Models of BPD2K2–5K5TRAC(S): P15.23=220.0 (Min. reference voltage),
P15.24=750.0 (Max. reference voltage)
These settings are only for reference and can be adjusted according to the actual
applications or by automatic adjustment.
3. Fault setting and reset time setting of fault delay
If the pre-warning of weak light, full-water, empty and underload are needed, it is
necessary to set the detection point, delay time and reset time according to the
actual working. Full-water/no water settings are P15.11–P15.14, P15.32–P15.33;
the function settings of underload are P15.16–P15.19; the function settings of weak
light are P15.20–P15.21. Default settings can be used, too.
Note: P11.01 frequency decreasing at sudden power loss 0.85 corresponds to
265V. The user is allowed to modify the coefficient (≥0.58) according to needs (the
corresponding undervoltage point of 0.58 is 180V, undervoltage fault when the
actual bus voltage is lower than the value).
4. Special setting for 1PH motors
(1) When the 1PH motor is in bad running performance, the user can adjust P04
VF curve setting, set P04.00=1 and set P04.03–P04.08 to appropriate values
according to commissioning conditions; increase the voltage if the motor
cannot start and decrease the voltage if the current is high.
(2) When the light is normal and the system starts slowly, increase P15.25 initial
voltage differential value appropriately.
(3) For the 1PH motors with 2PH control (capacitor-removing):
a) The maximum voltage needs to be less than 1/1.6 of the bus voltage. It is
recommended to set the rated voltage less than 200V, P02.04=200V, or limit
the maximum voltage output by multi-dot V/F curve;
b) Observe the current of the winding group through P17.38 and P17.39. The
switched current is the combination current of the two winding groups. The
impedance of the winding group is different, so the current is different at the
same voltage output.
c) P04.35 can be used to change the output current of the main and secondary
winding group. The qualified people are recommended to adjust; otherwise
the motor performance may be impacted.
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