Adtech iMASTER – A1 Series - Page 137

A1-User’s Manual
１３３
Increasing '25.07' (Filter bandwidth) results the delay in calculating torque so '25.05' (OVS
D gain) should be set
Please set the '25.05' (OVS D gain) between 500 to 1000
 Experimental values on MG-Set test are
'25.07' (Filter bandwidth) = 30, '25.05' (OVS D gain) = 1000
Case2) if overvoltage trip is occurred at normal operation,
Cause: Torque is over estimated due to motor parameter error or current sensing error.
 Measures :
 Change a '25.06' (q-Current reference)
Please set the '25.07' (Filter bandwidth) between 30 to 100
If this value is set too high, Frequency output can be saturated to maximum frequency.
Calculated torque output
User can monitor calculated torque by 2 methods
 Parameters
No.
Name
Description
default
Run-time
Edit
'12.03'
wAODef (AO1 source)
0 ~ 4
0
X
'12.11'
wAODef2 (AO2 source)
0 ~ 4
1
X
 Analog output (DC voltage)
 '12.03' (AO1 source)
Set '12.03' = 4 display calculated torque value (-150% ~ +150%) by analog output.
AO1 output
Torque
0V
-150%
5V
0%
10V
+150%
(※ '12.03' = 0~3 are the same as existed function)
 Analog output (current)
 '12.11' (AO2 source)
Set '12.11' = 4 display calculated torque value (-150% ~ +150%) by analog output.
AO2 output
Torque
4mA
-150%
12mA
0%
20mA
+150%
(※ '12.11' = 0~3 are the same as existed function)
 Special parameter: Calculated torque read frame by Modbus
- CMD : 03 (Read)
- Parameter : 10 (Calculated Torque)
Communication Number
CMD
Parameter
Data
CRC
TX
01
03
000A
0001
RX
01
03
000A
Torque value