2 6
AT6200/AT6400 Installation Guide
Common Problems and Solutions
(continued)
Problem
C a u s e
Solution
Joystick mode: Motor
does not move.
1. Joystick Release input not grounded.
2. Improper wiring.
1. Ground Joystick Release input.
2. Check wiring for opens, shorts, and mis-wired connections.
LEDs: LED next to the
PC-to-AUX cable
connector on the AUX
board is off.
1. PC-to-AUX cable is not connected.
1. Make sure the cable is securely connected at both ends.
LEDs: LED on AT6n00 PC
card is off.
1. No power.
2. Operating system not downloaded.
1. Check PC-AT power and check proper card installation in bus slot.
2. Download operating system.
LEDs: LED on AT6n00 PC
card is red.
1. Internal Board Monitor Alarm (BMA)
has detected a non-recoverable fault.
1.a. Recycle power to the AT6n00.
1.b. 5V is not shorted to GND on the I/O connections.
LEDs: STATUS LED on
AUX board is red.
1. Operating system not downloaded.
1. Download operating system.
LEDs: STATUS LED on
AUX board off.
1. Computer not on.
2. AUX cable not connected.
3. No AC power to AUX board.
1. Computer must be on since the AUX board turns on and off
automatically with the computer.
2. Make sure both ends of cable connectors are securely latched.
3. Check AC power to AUX board.
Motion does not occur.
1. STATUS LED on AUX board off or
red.
2. End-of-travel limits are active.
3. Step pulse too narrow for drive to
recognize.
4. Drive fault level incorrect.
5. Improper wiring.
6. P-CUT (Pulse cut-off) not grounded.
7. Load is jammed.
8. No torque from motor.
1. See LED troubleshooting as noted above.
2a. Move load off of limits or disable limits with the
LHØ,Ø,Ø,Ø
command.
2b. Set
LSPOS
to a value greater than
LSNEG
.
3. Set pulse width to drive specifications using the
PULSE
command.
4. Set drive fault level using the
DRFLVL
command.
5. Check step , direction, drive fault, & limit connections.
6. Ground P-CUT connection on AUX board.
7. Remove power and clear jam.
8. See problem:
Torque, loss of.
Motor creeps at slow
velocity in encoder mode.
1. Encoder direction opposite of motor
direction.
2. Encoder connected to wrong axis.
1a. Switch encoder connections A+ & A- with B+ & B-.
1b. Switch DIR+ with DIR- connection to drive.
2. Check encoder wiring.
Mouse stops working or
serial ports affected (after
AT6n00 is installed).
1. Interrupt conflict.
2. Address conflict.
1. See
Interrupt Selection section below.
2. See
Address Selection section below.
Operating system will not
download, or download
stops part way through.
1. Address conflict.
2. Download error.
1. See
Address Selection section below.
2. See
Downloading Errors table below.
Programmable inputs not
working.
1. IN-P (input pull-up) on AUX board not
connected to a power supply.
2. If external power supply is used, the
grounds must be connected together.
3. Improper wiring.
1a. When inputs will be pulled down to 0V by an external device, connect
IN-P to +5V supplied or other positive supply.
1b. When inputs will be pulled to 5V or higher by an external device,
connect IN-P to 0V.
2. Connect external power supply's ground to AT6n00's ground (GND).
3. Check wiring for opens, shorts, and mis-wired connections.
Programmable outputs not
working.
1. Output connected such that it must
source current (pull to positive voltage).
2. OUT-P (output-pull-up) on AUX board
not connected to a voltage source.
3. If external power supply is used, the
grounds must be connected together.
4. Improper wiring.
1. Outputs are open-collector and can only sink current -- change wiring.
2. Connect OUT-P to the +5V supply on the AUX board or to an external
supply of up to 24V.
3. Connect the external power supply's ground to the AT6n00's ground
(GND).
4. Check wiring for opens, shorts, and mis-wired connections.
Torque, loss of.
1. Improper wiring.
2. No power to drive.
3. Drive failed.
4. Drive faulted.
5. Drive shutdown.
1. Check wiring to the drive, as well as other system wiring.
2. Check power to drive.
3. Check drive status.
4. Check drive status.
5. Enable drive with the
DRIVE1111
command.
Trigger inputs not working.
1. If external power supply is used, the
grounds must be connected together.
2. Improper wiring.
1. Connect external power supply's ground to AT6n00's ground (GND).
2.a. Check wiring for opens, shorts, and mis-wired connections.
2.b. When inputs will be pulled down to 0V by an external device, connect
AUX-P to +5V supplied or other positive supply.
2.c. When inputs will be pulled to 5V or higher by an external device,
connect AUX-P to 0V.
Velocity & acceleration is
incorrect as programmed.
See
Distance problem noted above.
Summary of Contents for Compumotor AT6200
Page 5: ......
