Jntech JNP75KH - Page 7

VI
5.2 INSTALLATION DIRECTION ................................................................ .......... 16
6 ELECTRIC AL CONNECTIO N...................................................................... 18
6.1 SCHEMATIC DIAGRAM OF ELECTRICAL CONNECTION ................................ .......... 19
6.2 INVERTER TERMINALS ................................................................ ............... 20
6.3 CABLE SELECTION FOR ELECTRICAL CONNECTION ................................ ............. 21
6.4 DC SIDE CONNECTION................................................................ .............. 21
6.5 AC SIDE ELECTRICAL CONN ECTION ................................ .............................. 23
6.6 WATER LEVEL SENSOR CONNECTION ................................ ............................ 24
6.6.1 Water level sensor interface define ............................................... 25
6.6.2 Water level sensor connection ....................................................... 26
6.7 COMMUNICATION CONNECTION ................................ ................................ .. 28
6.7.1 RS485 Communication .................................................................. 28
6.7.2 GPRS Communication .................................................................... 30
7 COMMISSIONING ................................................................................. 31
7.1 VERIFY BEFORE COMMISSIONING ................................................................ 31
7.2 INVERTER BEING POWER ON FOR THE FIRST TIME ................................ ............. 31
7.3 MODIFY MOTOR PARAMETERS ................................ .................................... 32
7.4 MOTOR PARAMETERS’ DETECTION AND COMMIS SIONING ................................ ... 33
7.4.1 Motor parameters’ detection ........................................................ 33
7.4.2 Commission .................................................................................. 34
7.5 INVERTER OPERATION MODE SWITCH........................................................... 37
7.6 OVERLOAD CURRENT SETTING..................................................................... 37
7.7 STOP FREQUENCY SETTING ................................................................ ........ 37
7.8 TIME CALIBRATION ................................ ................................ .................. 38
8 LCD PAN EL OPER ATING INSTRUCTIONS ................................................... 39