PULSAR
®
PLUS III-S, III-S6, and VI-S SUCTION BLAST CABINETS
Page 44
© 2021 CLEMCO INDUSTRIES CORP.
www.clemcoindustries.com
Manual No. 30421
9.0
TROUBLESHOOTING – ELECTRICAL
Refer to Section 8.0 to troubleshoot pneumatic and
mechanical problems
Arc Flash and Shock Hazard.
Appropriate personal protection equipment
(PPE) required prior to work on or near
energized parts. Failure to comply can result in
shocks, burns, injury, or death. All electrical
work or any work done inside a control panel or
junction box must be performed by a qualified
electrician and comply with applicable codes.
Troubleshooting Notes:
A wiring schematic is stowed inside the main
electrical control panel (CP1). Refer to the schematic
for troubleshooting the electrical system.
Use a voltmeter capable of reading 120 VAC voltage
and audible setting to checking resistance.
9.1
Green pushbutton light does not illuminate
9.1.1
Machine is not plugged into a 120 VAC
receptacle or the receptacle does not have electricity.
9.1.1.1
Plug machine power cord into receptacle.
9.1.1.2
Check electrical receptacle for proper operation.
9.1.2
Fuse filament is broken.
9.1.2.1
Open the CP1 electrical panel door. CAUTION
should be used when the panel is live.
9.1.2.2
Ensure main circuit breaker is not tripped or off.
9.1.2.3
Check 3A fuse FU1 to ensure it is not bad.
Remove fuse and use voltmeter on the resistance
setting and the audible ringing sound enabled, use the
voltmeter to “ring” across the fuse to ensure the inside
filament is not broken. Reinstall the fuse if the voltmeter
rings.
9.1.2.4
Change the voltmeter to AC setting and then
measure voltage from wire 13 on fuse block FU1 to
Terminal 2. There should be 120 VAC present.
9.1.3
Dust collector dustbin is not installed correctly.
9.1.3.1
Install the dustbin under the dust collector and
securely clamp it in place using the provided clamps.
9.1.4
Dust-collector dustbin switch is bad.
9.1.4.1
With the dust collector bin locked in place
correctly, check voltage between Terminals 10 and 2. If
120 VAC is not present, dust-collector bin switch has an
issue. Check wiring and mechanical engagement, per
Section 5.7.
9.1.5
Green pushbutton light is faulty.
9.1.5.1
Replace either the LED light inside the green
pushbutton or the entire pushbutton light assembly.
9.2
Dust-collector exhauster motor does not
start when pressing the illuminated green (START)
pushbutton
9.2.1
Circuit breaker is tripped.
9.2.1.1
Ensure main circuit breaker is not tripped or off.
If circuit breaker will not reset, it may need to be
replaced.
9.2.2
Green start pushbutton faulty.
9.2.2.1
With green start pushbutton pressed, check
voltage between Terminals 12 and 2. If 120 VAC is not
present, green start pushbutton has an issue. Check
wiring and pushbutton.
9.2.3
Red stop pushbutton faulty.
9.2.3.1
With the green start pushbutton pressed, check
voltage between Terminals 11 and 2. 120 VAC should not
be present. Then, with the red pushbutton pressed, check
voltage between Terminals 11 and 2. 120 VAC should be
present. If either case is not true, then the red stop
pushbutton has an issue. Check wiring and pushbutton.
9.2.4
Motor contactor is faulty
9.2.4.1
With the green start pushbutton pressed and red
stop pushbutton not pressed, check voltage between
Terminal 12 and 2. 120 VAC should be present and
motor contactor should be pulled in. If motor contactor is
not pulled in, check for faulty contactor.
9.2.4.2
With the green start pushbutton pressed and red
stop pushbutton not pressed, use voltmeter to “ring”
across the motor contactor Terminals 13 and 14. It
should ring out. If it does not ring out, check for faulty
contactor.
9.2.4.3
If motor contactor engages after pressing the
green start pushbutton, but the motor does not start, use
voltmeter to “ring” across Terminals 1 and 2, then 3 and 4,
and then 5 and 6. If any of these three pairs do not ring
out, motor contactor may be faulty. If they all ring out,
make sure motor wiring is correct and motor is not bad.
9.2.5
Motor wired incorrectly
