
SR981S/SR982S operation manual of solar pump station
Page 59 of 85
►Press “ ” button to adjust temperature value, adjustable range: 10
o
C ~
MAX3-2
o
C
, default set is “30
o
C”
►Press “ESC” button to exit the menu or wait for 20 seconds to exit, parameters are
saved automatically
8.5.3 PUMP1 P1 pump operation mode selection
Description:
P1 output mode can be configured to function as one of below three modes:
ON/OF mode: for normal pump, switch on/off mode
PLUS mode: for normal pump, pulse control
HEA mode: mode for high efficiency pump. RPM control
Setup steps:
To access main menu FUN and then select submenu P1 pump operation mode selection,
“PUMP 1 ONOF”displays on the screen,
►Press “SET” to access the menu, “PUMP1 ONOF”
shows and blinks on the screen; factory set is “ON/OF
mode”.
►Press “ ” button, “PUMP1 PLUS” shows on the
screen, then pump output is pulse controlled.
►Press “ ” button, “PUMP1 HE A” shows on the screen, then pump output is high
efficiency mode (RPM controlled)
►Press “ESC” button to exit the menu or wait for 20 seconds to exit, parameters are
saved automatically.
Note:
when pump mode is set as “PUMP1 HE A”, pump speed is changed with scope
20%~ 100%.
Note: when pump mode is set as” PUMP1 ONOF”, pump is running with fixed speed, RPM
control is deactivated.
8.5.3.1 nMIN Pump1 speed adjustment (RPM)
Output mode of P1 can be set as RPM output or as simple on/off mode, only you set
the output mode as RPM mode, then you can see this submenu, and when you set
“nMIN” value of 100%, then this output becomes “on/off “ control mode.
Normal ONOF switch output
: circuit pump speed control (RPM) is deactivated, pump is