1-2
IM 253710-01E
Block diagram
Power measurement module Model : 253751 / 253752
Current
Sensor
Current input circuit
100 m
Ω
Divider
12-bit
A/D
Photo
Isolator
I data
I
LPF
1 MHz
LPF
20 kHz
LPF
500 Hz
Divider
Divider
10 m
Ω
5 A
20 A
±
±
I
I
U
Voltage input circuit
OP
AMP
OP
AMP
12-bit
A/D
Photo
Isolator
U data
U
LPF
1 MHz
LPF
20 kHz
LPF
500 Hz
Resistor
Resistor
1 M
Ω
±
Zero
Crossing
Detector
Zero
Crossing
Detector
Applies only to
253752
Zero Crossing
Data
Zero Crossing
Data
Motor module Model: 253771
OP
AMP
12-bit
A/D
Photo
Isolator
Speed data
Torque data
LPF
100 Hz
LPF
500 Hz
Resistor
Resistor
1 M
Ω
Zero
Crossing
Detector
Zero
Crossing
Detector
Zero Crossing
Data
Zero Crossing
Data
Counter
Pulse
Analog
Speed
OP
AMP
12-bit
A/D
Photo
Isolator
LPF
100 Hz
LPF
500 Hz
Resistor
Resistor
1 M
Ω
Torque
1.1 System Configuration and Block Diagram