Rockwell Automation 1391 USER MNL/DIGITAL AC SERVO DR - Manual (Page 29)

Chapter 4
Description of Operation
4-8
Figure 4.4
1391-DES Block Diagram
M
M
M
1326A AC
Servomotor
Isolation
Transformer
(MPT)
R1
C1
Shunt
Regulator
Transistor
Shunt
Regulator
Transistor
Base Drive
Logic
Suppy
Power Fault
Protection
Power Driver Board
Contactor Coil
Circuit Breaker
(MCB)
Protection
Circuitry
Control
Logic
Digital Control Boards
Velocity
Command
Encoder
Output
Velocity
Output
Adjustable
Current
Limit
Enable
Reset Torque
Command
Input
DROK
Contact
Isolated
Current
Sense
Board
Brushless
Resolver
TB5–1
TB5–2
TB5–3
TB1–1
through
TB1–10
TB4–12
TB5–4
TB5–5
TB5–6
TB4–19
TB4–21
TB2–1
TB2–2
TB2–3
TB4–11
TB2–4
TB2–5 TB2–6
TB2–7 TB2–9
TB2–10 TB2–11
TB2–12 TB2–13
TB2–14 TB3–1
through
TB3–10 TB2–15
TB2–16 TB4–17
TB4–18
Current
Output
Status
Enable
LEDs
36V AC
1–Phase
AC Line Input
External Shunt
Regulator
Resistor
M
Contactor
Rectifier D1
Power Transistor
Output Modules
User Supplied
Branch Circuit
Protection &
Disconnect