ELECTRICAL INSTALLATION 
 
26 ACR7000 Controller Installation Guide  
Axis Connector Power Source 
Each Axis (and Auxiliary Encoder) connector has a nominal +5 VDC power source to aid application installations. 
The power source typically is used to power: 
•  An external encoder 
•  Optical inputs and/or outputs between the ACR7000 and an external drive 
1
Voltage tolerance from +5V (@ 150 mA or less) 
1. Maximum current draw per Axis/Encoder Connector is 250 mA, not to exceed a combined 
1500 mA for eight axis connectors and two auxiliary encoder connectors. 
Note: All parameters are at the connector pin. 
 
 
 
 
Equivalent Circuit for Axis Power Source 
 
Axis Connector Fuse 
The Axis connector has a +5V voltage source for powering an encoder and/or drive I/O, and includes a fuse, as 
shown in Figure 8 above. In the event the +5V source shorts to ground, the internal reset-able fuse disables the 
+5V source. When the short-circuit condition is removed and the fuse cools, the fuse automatically resets.