bonitron M3628PCF, Customer Reference Manual

Page: 19 / 32

User’s Manual
19
5. T
ROUBLESHOOTING
If a problem occurs on start-up or during normal operation, refer to the problems described
below. If a problem persists after following the steps below, contact the product supplier
or your system integrator for assistance.
Repairs or modifications to this equipment are to be performed by Bonitron approved
personnel only. Any repair or modification to this equipment by personnel not approved
by Bonitron will void any warranty remaining on this unit.
5.1.
D
ISPLAYS NEVER COME ON
•
Ensure that the input power cable is connected firmly to the unit and to a functioning
AC source of the correct voltage.
•
If the connection and the power supply are good, make sure the input circuit breaker
(Section 4.4) has not tripped.
5.2.
S
ETPOINT
V
OLTAGE METER NEVER RISES ABOVE ZERO
•
Ensure that the input power cable is connected firmly to the unit and to a functioning
AC power source.
•
Ensure that the control switch is set to charge.
•
Make sure the voltage selection knob is above zero.
5.3.
O
UTPUT
V
OLTAGE METER NEVER RISES ABOVE ZERO
•
Check the connections between the unit and the load, making sure that the
connection is solid, the polarity is correct, and the output is not shorted.
•
Check the output voltage with a separate voltage meter. If voltage is present, the
internal voltmeter may need service. Consult Bonitron for service options.
5.4.
C
URRENT METER SHOWS NO OUTPUT CURRENT
•
Check the output connections to make sure there is good contact.
• Make sure there is voltage at the output terminals.
• Make sure the circuit breaker is not tripped.
5.5.
L
OAD
C
APACITOR TAKES A LONG TIME TO CHARGE
/
DISCHARGE
•
Make sure the control switch and voltage control knob are set correctly.
• Large loads may take a long time to charge or discharge such as a load in excess
of 100,000 µF.
• Check the load connection, making sure it is solid and the polarity is correct.
• Increasing the voltage control knob will raise the end charge voltage.
ATTENTION!
If the former is in current limit, the displayed voltage may climb as the load
charges. The final voltage may be higher than the voltage indicated on the
voltmeters.
DANGER!
Always monitor the output voltage while operating the unit. The voltage
control knob will set the final output voltage, not the present output voltage.
Ensure that the attached loads do not exceed their rated voltage, as
catastrophic damage, injury or death may occur!