DS350GM - BOOM CONTROL EXTENSION RT 865BXL
20
031-300-190-047 Rev0 02/17/1999
Correct?
Switch power off. Re -connect wire 2
to terminal X1/2.
Yes
No
Yes
No
Continuation
Correct?
Switch power off. Remove wire 2 from LG 321
terminal X1/2. Switch power on. Measure
electrical current at terminal
X1/2(+ 20mA ) and X1/3(GND).
Switch power off.
Re- connect wire 2 to
terminal X1/2.
Defective length sensor
unit. Replace length
potentiometer assembly.
Refer to section 2,
drawing 2.3.
Turn the length potentiometer in the LG 321 (IM)
clockwise to a soft stop (10 turns).
Measure the voltage at terminal X1/2(5.6V) and
terminal X1/3(GND).
Faulty wiring between length
transducer LG 321 and bus extension.
Check wiring.
Remove lid from LG321(CM length) and measure
supply voltage at terminal X1/1 (+24V) and X1/3
(GND).
Correct?
Faulty wiring between bus extension
and LG 321 (CM). Check wiring.
Refer to section 2, drawing 2.8 to 2.12.
Yes
Continue on next
page
No