Rockwell Automation Publication 2198-UM004D-EN-P - December 2022 249
Chapter 10 Modes of Operation
Speed Mode Timing
In the Speed mode timing diagram, the following applies.
• ‘Off’ signifies the contact is open while ‘On’ signifies the contact is closed.
• When the drive is in Sz operation mode, the speed command is disabled,
therefore S1=0.
When the drive is in S Speed Control mode, the speed command S1 is
represented as the analog voltage input.
• SON represents the Servo On digital input and is on when the drive is
enabled.
• When the drive is enabled (SON=on), the command is selected according
to the state of digital inputs SPD0 and SPD1.
Zero Speed Threshold Function
The Zero Speed Threshold function is enabled when the following conditions
are met:
• Condition 1: Operation Mode is Speed Control (Operating Mode = S or
Sz)
• Condition 2: a digital input configured as Zero Speed Threshold (0x05)
and this input is on.
• Condition 3: Motor speed is lower than the value of the parameter
ZeroSpeedWindow ID145 (P1.038)
• The analog input is used in this example.
Analog Input ID167 (P1.064 X = 1)
Table 90 - Relevant Parameter
Parameter Name
ID145 (P1.038) ZeroSpeedWindow
I
n
t
e
r
n
a
l
r
e
g
i
s
t
e
r
E
x
t
e
r
n
a
l
a
n
a
l
o
g
v
o
l
t
a
g
e
o
r
z
e
r
o
E
x
t
e
r
n
a
l
I
/
O
To Next Page
Loading...
Need help?
General
