33
Group 23 PUMP & HVAC
Code
Parameter
Name
Setting Range Default
Attribu
te
23-28
Forced Run
Command
0.00 ~ 599.00 0.00
23-29
Switching
Time of Water
Pressure
Detection
0 ~ 240 3
23-30
Detection
Time of
Multiple
Pumps in
Parallel
Running Start
0.0 ~ 30.0 5.0
23-31
Synchronous
Selection of
Multiple
Pumps in
Parallel
0: Disable
1: Pressure
Setting
Run/Stop
2: Pressure
Setting
3: Run/Stop
1
23-34
Tolerance
Range of
Constant
Pressure 2
0.01 ~ 650.00 0.5
23-35
Selection of
Multiple
Pumps Shift
Operation
0: No Function
1: Timer
Alternately
Selection
2: Sleep Stop
Alternately
Selection
3: Timer and
Sleep Stop
Alternately
Selection
4: Multiple
PumpsTest
Mode
1
23-37
Leakage
Detection
Time
0.0~100.0 0.0
23-38
Pressure
Variation of
Leakage
Detection
Restart
0.01 ~ 65.00 0.1
23-39
Pressure
Tolerance
Range of
Leakage
Detection
Restart
0.01 ~ 650.00 0.5
23-71
Maximum
Pressure
Setting
0.10~650.00 10.00
23-72
Switching
Time of
Alternation in
Parallel
0: Hour
1: Minute
0
23-73
Slave
Wake-Up
0: Disable
1: Enable
0
Group 23 PUMP & HVAC
Code
Parameter
Name
Setting Range Default
Attribu
te
Selection
23-74
High Pressure
Setting
0: Disable
1: High
Pressure
Warning
2: High
Pressure
Warning or
Error
2
23-75
Low Pressure
Setting
0: Disable
1: Low
Pressure
Warning
2: Low
Pressure
Warning or
Error
0
23-78
Selection of
Loss
Pressure
Detection
0: Disable
1: Loss
Pressure
Warning
2: Low
Pressure Error
0
Chapter 4
Troubleshooting and
Fault Diagnostics
4.1 Fault Detection Function
Table 4.1.1 Fault information and possible
solutions
LED display Possible solutions
OC
over current
Extend acceleration /
deceleration time.
Check the motor wiring.
Disconnect motor and try
running inverter.
OCA
over current
Set the longer acceleration
time
Change to bigger capacity of
inverter
Examine motor
Check the wire
Replace IGBT module
OCC
over current
Set the longer acceleration
time
Change to bigger capacity of
inverter
Examine motor
Check the wire
Replace IGBT module