Yaskawa MP2000 Series: Built-in SVB or SVB-01 Motion Module - Manual (Page 446)

12.1 Troubleshooting
12.1.2 MP2000 Series Machine Controller Error Check Flowchart
12-3
Troubleshooting
12.1.2 MP2000 Series Machine Controller Error Check Flowchart
Find the correction to the problem using the following flowchart if the cause of the problem is thought to be the
Machine Controller or SERVOPACK.
* 1. Check the status flag Program Alarm Occurrence (MSEE work, bit 8 of the 0 word) to see whether a motion pro-
gram alarm is occurring or not.
<Example> When an MSEE instruction is executed in the ladder program shown below, bit 8 of DW00000 indi-
cates an alarm occurrence.
* 2. To find the system work number, find the SW register that stores the motion program number where the alarm is
occurring from the Main Program Number in Execution (SW03200 to SW03215), and obtain the system work num-
ber from the SW register.
Refer to 12.2.4 ( 9 ) Motion Program Execution Information for the relationship between SW register and system
work number.
* 3. Obtain the motion program alarm code from Work Using Program Information (58 words). Obtain the system work
number and then determine the contents of the alarm code referring to 12.2.4 ( 9 ) Motion Program Execution
Information.
An alarm code is prepared for each Parallel. When a parallel execution instruction such as PFORK, JOINTO,
PJOINT is not used, the alarm code will be stored in Parallel 0.
START
Was there an
axis alarm ?
IL 04ҁ0
System error
No alarm
Check the monitoring
parameter IL 04 "Alarm."
System error
NO
NO
NO
NO
Motion program alarm
Axis alarm
Did the LED on Basic Module,
ERR or ALM, light up ?
Are you using a motion
program ?
Check the contents of the alarm
code. *3 (Hexadecimal (H)
expression in the register list)
Find the cause by checking the alarm
code.
Find the cause by checking
the status of the alarm bit.
Was there any motion
program alarm ? *1
YES
YES
YES
Check for the system work No.
of the motion program. *2
YES
Refer to 12.3.2 Motion Program
Alarm Code List. Refer to 12.5.2 Motion Error Details
and Corrections.
Go to 12.2.2 Troubleshoot-
ing Flowchart for System
Errors.