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Serial (RS-232) Controls and Operation
122 AX500 Motor Controller User’s Manual Version 1.9b. June 1, 2007
The Controller Status Register can be polled at any time to see if there is a pending fault
condition. Any one bit set will cause the controller to turn off the Power Output stage. Con-
ditions marked as Temporary mean that the controller will resume operation as soon as the
fault condition disappears. Permanent conditions will cause the controller to remain off
until it is reset either by cycling power, pressing the reset button, or sending the %rrrrrr
command.
Controller Identification Register
Address: ^8A
Access: Read Only
Effective: Instantly
This register may be used to query the Controller’s model and some of its optional hard-
ware configurations.
Current Amps Limit Registers
Address: ^8B - Channel 1
^8C - Channel 2
Access: Read Only
Effective: Instantly
TABLE 21. Controller Status Register Definition
Bit Fault Condition Effect
0 Overvoltage Temporary
1 Overtemperature Temporary
2 Undervoltage Temporary
3 Manually Forced MOSFETs Off Temporary
4Unused
5 Confirmed Short Circuit Permanent
6 Confirmed Encoder Error Permanent
7 Emergency Stop Pressed Permanent
TABLE 22. Controller Identification Register Definition
Bit Model or Function
0AX500
1AX1500
2AX2500
3AX3500
4Unused
5 Encoder Present
6 Short Circuit Detection Present
7Unused