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Rockwell Automation Publication 35-UM001A-EN-P - May 2022
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Chapter 1 Armor PowerFlex Variable Frequency Drives Overview
Integrated Safe Speed Monitoring
Armor PowerFlex drives are capable of safe stop and safe speed monitor
functions via drive-based and controller-based integrated safety over the
EtherNet/IP network.
In this example, the SS1 stopping function is used in a standard and safety
drive-based configuration with dual-feedback monitoring.
Figure 9 - Integrated Safe Speed Monitored
Safety Inputs
Configurable I/O - 0,1
Input - 0,1
Input - 2,3
Configurable I/O - 0,1
Input - 0,1
Input - 2,3
Main Power
Circuit
Protection
120V AC
24V DC
Encoder
Auxiliary/Control Power
3-phase Power
Safety Inputs
Armor PowerFlex Drive
with Integrated Safety (35S)
Ethernet cable
Ethernet cable
Ethernet cable
Ethernet cable
Safety Bipolar Output
Safety Bipolar Output
Armor PowerFlex Drive
with Integrated Safety (35S)
Safety
Programmable
Controller
Ethernet
Management
Switch
24V DC Power Supply
STO or timed SS1
performance
Safety encoder
feedback is required
for SS1, SLS, SDI,
and SLP performance
Encoder
EtherNet/IP with CIP Safety (supports DLR)