FDC-9300
A1
SV
OUT
A2
PV
F
C
Chapter 5 Error Codes & Troubleshooting
Chapter 5 Error Codes & Troubleshooting
This procedure requires access to the circuitry of a live power unit. Dangerous accidental contact with line
voltage is possible. Only qualified personnel are allowable to perform these procedures. Potentially lethal
voltages are present.
This procedure requires access to the circuitry of a live power unit. Dangerous accidental contact with line
voltage is possible. Only qualified personnel are allowable to perform these procedures. Potentially lethal
voltages are present.
Troubleshooting Procedures :
Troubleshooting Procedures :
(1) If an error message is displayed, refer to
to see what cause it is and apply a corrective action to the
failure unit.
Table 5.1
(1) If an error message is displayed, refer to
to see what cause it is and apply a corrective action to the
failure unit.
Table 5.1
Line wires are improperly connected
Line wires are improperly connected
No voltage between line terminals
No voltage between line terminals
Incorrect voltage between line terminals
Incorrect voltage between line terminals
Connections to terminals are open, missing or loose
Connections to terminals are open, missing or loose
Thermocouple is open at tip
Thermocouple is open at tip
Thermocouple lead is broken
Thermocouple lead is broken
Shorted thermocouple leads
Shorted thermocouple leads
Short across terminals
Short across terminals
Open or shorted heater circuit
Open or shorted heater circuit
Open coil in external contactor
Open coil in external contactor
Burned out line fuses
Burned out line fuses
Burned out relay inside control
Burned out relay inside control
Defective solid-state relays
Defective solid-state relays
Defective line switches
Defective line switches
Burned out contactor
Burned out contactor
Defective circuit breakers
Defective circuit breakers
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
(3) If the points listed on the above chart have been checked and the controller does not function properly, it is
suggested that the instrument be returned to the factory for inspection.
Do not attempt to make repairs without qualified engineer and proper technical information . It may create
costly damage. Also , it is advisable to use adequate packing materials to prevent damage in transportation.
(3) If the points listed on the above chart have been checked and the controller does not function properly, it is
suggested that the instrument be returned to the factory for inspection.
Do not attempt to make repairs without qualified engineer and proper technical information . It may create
costly damage. Also , it is advisable to use adequate packing materials to prevent damage in transportation.
(4) Dismantle the controller according to
.
Refer to
for some probable causes and actions.
Figure 5.1
Table 5.2
(4) Dismantle the controller according to
.
Refer to
for some probable causes and actions.
Figure 5.1
Table 5.2
Press both sides of the latch located on rear
terminal block.Hold tightly and remove the
terminal block from the housing.
Press both sides of the latch located on rear
terminal block.Hold tightly and remove the
terminal block from the housing.
Expand the rear edge of the housing by
using a tool. Pull out the PCB from the housing.
Expand the rear edge of the housing by
using a tool. Pull out the PCB from the housing.
2
1
(2) Check each point listed below. Experience has proven that many control problems are caused by a defective
instrument.
(2) Check each point listed below. Experience has proven that many control problems are caused by a defective
instrument.
Dismantling the Controller
Dismantling the Controller
Figure 5.1
Figure 5.1
UM9300 2.0
UM9300 2.0
42
