Specifications and Site Requirements
Electrical Specifications
222 MagneMotion
Rockwell Automation Publication MMI-UM002F-EN-P - October 2022
DC Enable
The DC Enable connector (J4) is used to monitor the status of the MM LITE power supply
and to control the motor propulsion power from the power supply to the motors remotely. See
Figure 4-60 on page 218 for the location of this connection.
A user-supplied cable can be used to provide the remote DC Enable functionality to enable or
remove propulsion power. If vehicles are moving on the system and propulsion power is
removed, the system no longer controls vehicle motion, and all vehicles glide to a stop
depending on their payload and motion before the loss of power. The system continues to
track vehicle IDs as logic power is maintained when propulsion power is removed.
NOTE: The DC Enable circuit is not the same as an EMO (Emergency Off), which removes
power to the MagneMover LITE transport system.
The DC Enable cable requires a 9-pin “D” plug that plugs into the MM LITE power supply at
J4. The pinout for this connection is provided in Table 4-29. To construct the cable, use
22 AWG wire for each pin on the connector that is wired, with a maximum length of
10 meters.
Figure 4-62: DC Enable Circuit
DC Enable Jumper Plug
The DC Enable jumper plug is used when remote control and monitoring of the motor propul-
sion power is not required. This jumper (provided by MagneMotion) is used in place of the
DC Enable cable and is permanently plugged into J4 on the MM LITE power supply.
Figure 4-63: DC Enable Jumper
DC-OK
RTN
+Propulsion Bus Enable
–Propulsion Bus Enable
DC Motor Power Monitor
Power Supply
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