IAI America DS-S-T1 - Manual (Page 88)

Page 86
R Another thing to consider with an emergency stop
Usually, the emergency stop input is tied to a ground. In the case where you are using an external power supply, the
power supply voltage can drop, causing an emergency stop to occur. The way the circuitry is designed, the 24V DC
power supply must be turned on before the controller, and the power supply must not be turned OFF while the
controller is in operation.
In addition, if there is a malfunction in the controller causing a part of the unit to break down, the EG condition will
remain in effect and homing cannot be performed. If this happens, please contact IAI.
(7) Other Errors
The following errors occur only rarely under normal operating conditions.
Precautions when handling errors/alarms
When you need to turn the power OFF and then ON again, please make sure to wait approximately 15 seconds after
turning the controller power OFF before turning it back ON.
If an error occurs in which you cannot perform homing, please contact a service representative after you have checked
out the condition at the time the error occurred as thoroughly as possible. In some cases, the problem might be in the
program itself and the representative may request a program list from you.
F0 Interrupt error Motor CPU and the interr
This error could occur wh
faulty controller operation
the hardware. Homing is
power OFF and then ON
several times, contact IA
FF CPU fault error This indicates a fatal erro
processing. In this case,
working. You must perfo
power OFF and then ON
many digits were used in
Make sure that calculatio
produce a value within ±3
11. Supplement