User guide

Publication 8720MC-IN002A-EN-P — December 2002
3-12 Troubleshooting Your 8720MC Servo Drive
Parameters 691 and 692 - Analog Input 1 Value and Analog
Input 2 Value
These parameters may be used to display the analog inputs as the
8720MC sees them. The scaling is.00% to 100.00% where 100% = 10
volts. The displayed values include the associated analog offsets,
Parameters 693 and 694.
Troubleshooting SCANport
I/O
Two parameters are available to monitor the SCANport command and
status information exchange, parameters 717 and 718.
Parameter 717 - SCANport Logic Command
A SCANport peripheral gateway device such as an A-B PLC can initiate
drive activity via the SCANport Logic Command word. The structure of
parameter 717 is as follows. The 12 character command messages are
shown in italics.
If any bit is true the function is selected.
Bit 0: Regenerative stop request - “Regen Stop”
Bit 1: Start request - “Start”
Bit 2: Jog request - “Jog”
Bit 3: Clear fault request - “Fault Clear”
Bit 4: Coast stop request - “Coast Stop”
Bit 5: Parameter Set Select bit 0 - “Parmset Bit0”
Bit 6: Parameter Set Select bit 1 - “Parmset Bit1”
Bit 7: Parameter Set Select bit 2 - “Parmset Bit2”
Bit 8: Parameter Set Strobe - “Parmset Chg”
Bit 9: Orient Request - “Orient Req”
Bit 10: Home request - “Home Req”
Bit 11: Manual/Auto request - “Man Mode Req”
Bits 12 to 15 are reserved: