Allen-Bradley 1444-TSCX02-02RB User Manual page 195

Table 41 - Tachometer
Parameter
Transducer Type
Transducer Power
Auto Trigger
Values
Sensor Type
Off
TTL Signal
NPN Proximity Switch
PNP Proximity Switch
Eddy Current Probe System
Self-Generating Magnetic Pickup
Transducer Power
Off
+24V DC
-24V DC
Checked (1)
Unchecked (0)
Auto Trigger is not available for Series A tachometer signal conditioner
expansion module hardware. Hardware series is specified in Module
Definition.
If a series A module is installed, but identified as a series B module, and
auto trigger is enabled in configuration, the tachometer module:
• Defaults to manual mode
• Indicates non-configured status (also see
• Indicates failed communications status (Expansion bus or module
fault status)
• Indicates overall expansion module fail status (Exp Module
Summary status)
Rockwell Automation Publication 1444-UM001D-EN-P - June 2018
Configure the Tachometer Expansion Module
Comments
Select the type of speed sensor that is connected to the input
channel of the tachometer signal conditioner.
Value
0
1
2
3
4
5
Select the power requirement for the connected sensor.
Value
Set to "Off" if the sensor is self-powered, such as a Magnetic
Pickup, or if it is powered from a separate source, including a
0
barrier or isolator.
1
2
When checked, the tachometer signal conditioner
automatically determines the trigger threshold. The function
behavior, dependent on transducer type, is as follows:
Sensor Type
Off
TTL Signal
NPN Proximity Switch
Status Page)
PNP Proximity Switch
Eddy Current Probe System
Self-Generating Magnetic Pickup
When the Transducer Type is Eddy Current Probe System, Auto
trigger requires a signal pulse level of not less than 2.0 volts
peak to peak.
Chapter 5
Behavior
—
Fixed trigger
level
Trigger level
that is
continuously
adjusted
Fixed level
195