FarragTech CARD G, Operating Manual

Page: 80 / 101

FAULTS AND REMEDY
CARD G / FIT
78
V 6.15 E / April 2010
The set temperature of the process air is not reached within the time limit after starting the
drying process.

Process air flow is too high. The pressure
regulator (1.4) is not correctly adjusted.

Contact or its representative to
obtain the right settings and set the valves
correctly.

Solid state relay [1V7] is defective.

There must be 220V...230V AC between wire
L- and N-(L2) of the heater when the solid
state relay is powered on (green LED on SSR
is ON)

if not, replace SSR.

The relay [3K8] is not pulling in.

Make sure that 24V DC is measurable on the
terminals A1, A2 on the contactor from
FIT-
controller x6-3 through the thermostat [3S8]
to the contactor (see the wiring diagram at
the end of this manual); if voltage is OK,
replace relay.

Heater (1.7) [1E7] defective.

Check heater resistance (290Ohm); if
necessary, replace heater.
The temperature of the process air is above the limit settings (set value plus 10°C [18°F]).

The solid state relay [1V7] shorted out.

Replace the SSR if voltage between the
phases is available while the drying process
is deactivated.

PID parameters are not correctly set.

Set the PID values to factory settings
(contact ).

The heater (1.7) [1E7] is defective.

Check if there is an earth connection or a
short circuit in the heater; replace it if
required.
The temperature of the process air is below the limit settings (set value minus 10°C [18°F]).

The alarm has been generated by another
alarm (e.g. NO COMPRESSED AIR), since the
temperature in the heater has dropped.

Acknowledge alarm and monitor if the
temperature rises to the set value again.

See also TEMP. NOT REACHED on page 78.

Remedy according this alarm (see page 78).