Main Causes Of An Alarm - Vexta EMP400 Series Operating Manual

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Troubleshooting
10.1
When the ALARM LED illuminates
When an alarm is generated, the ALM output turns on and the ALARM LED on the controller illuminates.
If an alarm is generated, check the error message displayed on the PC HyperTerminal. Refer to
section 10.2, "Error messages," and respond accordingly.
See section 10.1.1, "Main causes of an alarm," to clear the cause of the alarm.
ALARM LED turns off.

10.1.1 Main causes of an alarm

When the ALARM LED turns on, check for the following conditions. If none of the following conditions
applies, check the error message displayed on the HyperTerminal.
E-STOP input is turned off.
ALM or limit-sensor output logic for
the driver does not match the output
logic of the controller.
ALM input is on.
The limit sensor is on.
The operation parameter setting is
not executable.
10-2
ALARM LED
turns on
OK
YES
Refer to section 10.2, "Error messages."
Cause
See "E-STOP switch active" in section 10.2, "Error messages."
Set the output logic for each signal, depending on the specifications
for the driver and limit sensor. (See ACTL command.)
See "Driver alarm" in section 10.2, "Error messages."
See "CW limit switch active," "CCW limit switch active" and
"CW·CCW limit switch active" in sectiton 10.2, "Error messages."
Correct the commands and input parameters in the program.
NG
PC is connected.
NO
Connect PC and start
HyperTerminal.
Execute the program
that generated the error.
Remedial action