Yaskawa MP2000 Series: Built-in SVB or SVB-01 Motion Module User 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.
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 ?

04ҁ0

System error

No alarm

Check the monitoring

parameter IL

04 "Alarm."

System error

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.

(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 ?

YES

Check for the system work No.

of the motion program.

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.