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OEM-AT6400 Installation Guide
Common Problems and Solutions
(continued)
Problem
C a u s e
Solution
LED: LED on OEM-
AT6400 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.
LED: LED on OEM-
AT6400 PC card is red.
1. Internal Board Monitor Alarm (BMA)
has detected a non-recoverable fault.
1.a. Recycle power to the OEM-AT6400.
1.b. 5V is not shorted to GND on the I/O connections.
Motion does not occur.
1. STATUS LED on OEM-AT6400 PC
card off or red.
2. End-of-travel limits are active.
3. Step pulse too narrow for drive to
recognize.
4. Improper wiring.
5. Load is jammed.
6. 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
LSCW
to a value less than
LSCCW
.
3. Set pulse width to drive specifications using the
PULSE
command.
4. Check step , direction, & limit connections.
5. Remove power and clear jam.
6. See problem:
Torque, loss of.
Mouse stops working or
serial ports affected (after
OEM-AT6400 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 OEM-AT6400
card 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 supply on the OEM-AT6400 card 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 OEM-AT6400'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 OEM-
AT6400 card 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 OEM-AT6400 card or to an
external supply of up to 24V.
3. Connect the external power supply's ground to the OEM-AT6400'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 drive enable input on 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.
3. Make sure INFEN 1 and INFNC-25
are set appropriately.
1. Connect external power supply's ground to OEM-AT6400'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.
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