8. ELECTRICAL MECHANISM - Page 136

8. ELECTRICAL MECHANISM 

129

BAS-311G, BAS-326G

Problem    #8    When the foot switch is depressed, an error code is displayed. 

Cause

Inspection/Remedy/Adjustment

Replacement if a malfunction

3.  If the feed mechanism does not 

move and [E210] is displayed, 
there is a malfunction of the 
pulse motor or cord. 

1) Disconnect connector P8 (YPM) from the 

PMD P.C. board, and measure the resistance 
between pins 1-2 and 3-4 at the cord-side 
connector. 
OK if 2-3 

Ω

After measuring, insert P8. 

2)  If 1) is OK, there is a malfunction of the PMD 

P.C. board. 

Pulse motor Y assembly 
 
 
 
 
 
PMD P.C. board 

Problem    #9    When the foot switch is depressed, an error code is displayed. 

Cause

Inspection/Remedy/Adjustment

Replacement if a malfunction

1. If the work clamp does not 

operate and [E300] is displayed, 
there is a blown fuse. 

Remove fuse F2 from the power supply motor 
P.C. board and check the continuity. 
OK if continuity 
(If there is no continuity, carry out the inspections 
in 2.) 

Fuse 
6A-250V 

2. If the work clamp does not 

operate and [E300] is displayed, 
there is a malfunction of the 
PMD P.C. board or of the power 
supply motor P.C. board. 

1) Disconnect connector P9 (POWER1) from 

the PMD P.C. board and measure the 
resistance between pins 1-2 at connector P9. 
OK if 

∞ Ω

; if 0 

Ω

, there is a malfunction of the 

PMD P.C. board. 

2)  Measure the resistance between the fuse F2 

terminal that is close to P6 (MAIN) and pin 2 
of connector P7 (PMD) on the power supply 
motor P.C. board. (D10 check) 
OK if 

∞ Ω

3) Disconnect connector P9 (POWER1) from 

the PMD P.C. board, and then measure the 
voltage between pins 1-2 of the cord-side 
connector. 
OK if approx. +100 V 
After measuring, turn off the power, wait 5 
minutes or more and then insert P9. 

4) Disconnect connector P2 (POWER2) from 

the PMD P.C. board, and then measure the 
voltage between pins 1-2 of the cord-side 
connector. 
OK if approx. +16 V 
After measuring, turn off the power, wait 5 
minutes or more and then insert P2. 

5) Check that connector P1 (MAIN) is inserted 

into the PMD P.C. board. 

PMD P.C. board or power 
supply motor P.C. board 

4886Q 

4884Q