Nidec Unidrive M700 - Basic Speed and Torque Control

SI-Ethernet User Guide 167
Issue: 3
Safety
information
Introduction
Mechanical
installation
Electrical
installation
Getting started Parameters
Key features
and Protocols
PC Tools
Applications
Security Diagnostics
Glossary of
terms
Index
Speed reference (SpeedRef)
The speed reference word utilises 2 bytes (16 bits) as shown below.
For more information on the setting of the speed reference see section 7-31 AC/DC Drive object
attributes on page 187.
Torque reference (TorqueRef)
The torque reference word utilises 2 bytes (16 bits) as shown below.
For more information on the setting of the torque reference see section 7-31 AC/DC Drive object
attributes on page 187.
7.5.12 Extended speed and torque control
Output assembly object 0x17 (23
10
)
The PLC or scanner must be configured for 6 output bytes (or 3 output words) if this assembly
object is to be used.
Extended control word
The extended control word consists of 2 bytes (16 bits), with only 5 bits of the low byte used as
shown below.
b15 b14 b13 b12 b11 b10 b9 b8
SpeedRef (high byte)
b7 b6 b5 b4 b3 b2 b1 b0
SpeedRef (low byte)
b15 b14 b13 b12 b11 b10 b9 b8
TorqueRef (high byte)
b7 b6 b5 b4 b3 b2 b1 b0
TorqueRef (low byte)
Table 7-13 Extended speed and torque control
Data word Function
Word 0 Extended control word.
Word 1 Speed reference (SpeedRef).
Word 2 Torque reference (TorqueRef).
b15 b14 b13 b12 b11 b10 b9 b8
b7 b6 b5 b4 b3 b2 b1 b0
NetRef NetCtrl FaultRst RunRev RunFwd