10 Appendix I: LCD Operation User Manual
88
Parameter Explanation Default Range
Fmax-recover
Recovery value for over-frequency
fault.
Inverter can start operating only when
the grid frequency is below this value.
50.15 Hz 50 Hz–53 Hz
Fmin-recover
Recovery value for under-frequency
fault.
Inverter can start operating only when
the grid frequency is above this value.
47.50 Hz 47 Hz–50 Hz
Power Ramp
Rate
The ramp rate of power variation. 16.67 % 5 %–100 %
10 Min Over
Vtg
Over-voltage protection value of
10-min average voltage
255.0 V 244 V–258 V
10.7.11 Adding the Existing System
Main Screen (Press ENT)→Menu (Press ×2)→Settings (Press ENT)→Input
password 111 (Press ENT)→Settings (Press ×10)→Existing Sys (Press ENT)
Existing Sys Rated-P: rated power of the existing
system.
Total Expor t Limit: export power upper limit of the
new system
y
The lower limit is the rated power of the existing
PV system.
y
The upper limit is ([rated power of the hybrid
inverter] + [rated power of the existing PV
system]).
For example, retrofit an existing PV system (rated power: 3000 W) with SH5K hybrid
inverter (rated power: 5000 W). The total export limit can be set from 3000 W to 8000
W.
The export power limit can also be set via the Zero-export menu that described in
section 10.7.3 . The settings in the two submenus are from the same source. If one is
changed, the other will synchronize the value.
10.7.12 Testing Earth Fault
Main Screen (Press ENT)→Menu (Press ×2)→Settings (Press ENT)→Input
password 111 (Press ENT)→Settings (Press ×11)→Earth Fault (Press ENT)
The DO2 relay will switch on automatically to signal the
external alarm if a light indicator and/or buzzer is
connected. The buzzer inside the inverter will also beep.
Testing earth fault
relay and buzzer
inside alarm. . .
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