CMVPFB01A
16
Cyclic Data Access - Dout Mapping
5.4 Cyclic Data
5.4.1 Overview
The control and status words allow the digital control and monitoring of the drive to be implemented using
a single data word for each function. Each bit in the control word has a particular function and provides
a method of controlling the output functions of the drive, such as run and direction. Each bit in the status
word provides feedback about the drive’s state of health and operational condition, such as drive healthy,
drive at speed, etc. The various Network Setpoints provide a method of editing the drives’ Frequency,
Speed, Toruque or PID control etc.
5.4.2 P44x = 1, SMV Control Word
The SMV Control Word consists of 16 control bits some of which are reserved.
Table 10: SMV Control Word
b15
b14
b13
b12
b11
b10
b9
b8
DC
Braking
PID
Disable
Quick
Stop
Controller
Inhibit
Network Setpoint Reference Source
b7
b6
b5
b4
b3
b2
b1
b0
Reserved
Network
Reference
Enable
Network
Control
Enable
Reserved
Reserved
Fault
Reset
Run
Reverse
Run
Forward
Table 11: SMV Control Word BIT Functions
BIT
Function
Description
0
Run Forward
Set to 1 to run the motor in the FORWARD direction.
1
Run Reverse
Set to 1 to run the motor in the REVERSE direction.
2
Fault Reset
A 0-to-1 transition will reset the drive from a trip condition.
3
Reserved
4
Reserved
5
Network Control
Enable
0 = Local Control
1 = Network Control
6
Network Reference
Enable
0 = Local Speed Reference
1 = Network Speed Reference
7
Reserved
8
Network
Setpoint
Reference
Source
0 = Network
4 = Preset #1
8 = Preset #5
1 = Keypad
5 = Preset #2
9 = Preset #6
2 = 0-10VDC
6 = Preset #3
10 = Preset #7
3 = 4-20mA
7 = Preset #4
11 = MOP
9
10
11
12
Controller Inhibit
Set to 1 to disable the drive and allow the motor to coast to a stop
13
Quick Stop
Set to 1 to disable the drive and stop the ramp time defined in P127
14
PID Disable
When using PID mode, setting this bit (14) to 1 will disable PID control. (Active only in Network Control)
15
DC Braking
Set to 1 to activate DC injection braking. Refer to P174 for details.