Sanhua SD2 Series, User Manual

Page: 34 / 48

Sanhua SD2 series drive
User Manual v3.5 –Sep-27.2022 30
Mod. Add. R/W Description Def Min Max U.M.
2 R/W
Bit7-0: 0-Select user-set compressor parameters;
x-Select the compressor parameters corresponding to the number
in EEPROM.(The setting takes effect when the inverter is stopped.)
0 0 255
-
Bit15-8: Reserved 0 0 0
12 R
Bit7-0:0-User-set compressor parameters; x-The compressor
parameters corresponding to the number in EEPROM.
- 0 255 -
Bit15-8: The total number of compressor parameters available in
EEPROM.
- 0 255 -
Tab. 4.3
4.3 Compressor start control
Only when [0~10V I/F Enable] Registe0.bit15=0, the Modbus can be used to control the drive, otherwise, the drive is
controlled by the 0~10V interface voltage as follows:
0-10V interface voltage Functions
V
＜
0.4V Stop/restore
0.4V≤V
＜
0.6V Stop/stator heater (10%)
0.6V≤V
＜
1.5V Stator heater: Target frequency= The Max frequency of stator heater *(V-0.5)
1.5V≤V
＜
2.0V Stator heater (100%)/compressor working frequency(12.5%)[15Hz]
2.0V≤V
＜
9.0V Compressor running: Target frequency= Max frequency*(V-1.0)/8.0
9.0V≤V Compressor running: Target frequency= Max frequency
Tab. 4.4
When using Modbus protocol control drive:

If the drive has a shutdown fault, register 10. bit7 will be set to 1, the relative flag shows. The drive can’t be enabled
until faults have been cleared by setting register0. bit7 to 1. When the drive is in the faults status, faults led will flash.
The flashing rules and failure cause show in tab 6-6-2.

The compressor can be started when there’s no one fault alarm, register0. bit1-0=1 and the register3 is not 0.

The compressor will immediately shut down when there’s a fault or register0. bit1-0 is set to 0.

The compressor will decelerate and shut down when register3 is set to 0.
Mod. Add. R/W Description Def Min Max U.M.
0 R/W
Bit1-0:
00-Stop compressor;
01-Run compressor;
10-Motor reversal;
11-Run Stator Heater.(10-Not currently implemented.)
0 0 3
-
Bit2:0-PFC Disable; 1-PFC Enable. 0 0 1
Bit3: 0-Do nothing; 1-Clear compressor re-startup Bit.
(Inverter auto clear this Bit.)
0 0 1
Bit6-4:Reserved 0 0 0
Bit7: 0-Do nothing; 1-Clear fault Bits.(Inverter auto clear this
Bit.)
0 0 1
Bit14-8:Reserved 0 0 0
Bit15:0-0~10V I/F Disable; 1-0~10V I/F Enable.(If want to use 1 0 1