Rockwell Automation Publication 1560F-UM001A-EN-P - June 2019 117
Programming Chapter 4
150-SM2 PTC, Ground Fault, and External Current Transformer
Module
The 150-SM2 Option Module provides simultaneous interface capability to
three different types of external sensing devices which can be used by the
controller for certain application conditions. When installing the 150-SM2 into
the SMC-50 control module, the following installation requirements must be
followed:
• Only one 150-SM2 can be installed in one SMC-50 control module.
• The 150-SM2 must reside in port 7 or 8 only. DO NOT use port 9 with
the 150-SM2.
• When the external CT function is enabled through the 150-SM2 CT
Enable Bit, the external CT is calibrated by the SMC-50 control module
for scaling, phase shift, and inversion. The calibration cycle will
automatically occur:
– before the first START occurs after the 150-SM2 installation and when
the CT Enable, Parameter X.12, = Enable,
– after a Load Defaults occurs, and
– when you force tuning of the SMC-50 control module through the
Force Tuning, Parameter 194, or the HOLD TO TEST button on the
SMC-50 control module is held for > 10 seconds when stopped.
To configure the 150-SM2, follow the steps in Basic Configuration using the
HIM on page 112 then proceed with the following steps.
1. Using the File-Group selection, press ENTER (number 5 on the keypad)
until the Group Linear List is displayed.
2. Use the up or down arrow to scroll to the desired parameter, then press
ENTER.
If the parameter is bit configured (for example, Fault Enable):
a. Use the left or right arrow to move to the bit location that needs to be
modified. The bit function is displayed at the bottom of the screen.
b. Press EDIT to move to the edit screen.
PROPERTIES
AUTO
Stopped
0 Amps
Allen-Bradley
ESC
Port 07 Param File-Group
ENTER
FILE Linear List
GROUP Linear List
Module Status
Fault Enable
Alarm Enable
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