10
Diagnostics / Faults
Operating states are indicated by the rotary control
’
s integrated light signal and, at the same
time, using the internal status LED by a
fl
ashing code.
Code
Relay
K1
Explanation
Reaction of Controller
Adjustment
OFF
de-energized
terminals 11 - 12 bridged
No line voltage
In the event of a mains interruption the
unit switches
“
OFF
”
and automatically
“
ON
”
when the voltage has been re-
stored.
Check line and internal controller fuse.
ON
energized
Terminals 12 - 14 bridged
Normal operation without fault
1
energized
Terminals 12 - 14 bridged
no enable
Terminals
“
D1
”
-
“
D1
”
(Digital In 1) not
bridged.
For mode Speed controller
1.01
“
Digital
In 1
”
is
fi
mly pre-programmed for enable.
For operation as P-Controller, PI-Control-
ler,
2.01
,
3.01
,
4.01
DIP 8 must be set
to
|
OFF
|
.
Switch OFF by external contact (
digi-
tal input).
2
de-energized
terminals 11 - 12 bridged
Motor fault
Tripping of connected thermostat or
break between terminals
“
TB
”
.
The unit cuts out and does not switch on
again.
Check motor and connection then reset
(
Motor protection).
3
energized
Terminals 12 - 14 bridged
Signal fault
Function only for operation as P-Control-
ler, PI-Controller (
2.01
)!
Interruption or short circuit in the sensor
leads or sensor values measured are out-
side measuring range:
- For temperature sensors TF.. (KTY)
below approx. -26
°
C and above approx.
76
°
C
- For active sensors with reaching mini-
mum or maximum signal values (depend-
ing on selected signal type).
The device works with minimal or maxi-
mum modulation depending on whether
there is a short-circuit or an interruption,
and on the programmed mode of opera-
tion.
The controller functions automatically
again with the value measured at the
temperature sensor after the fault has
been recti
fi
ed.
Check sensor.
Code
28.05.2008
v_flash_code_pxet_q.VSD
3
2
1
ON
OFF
Operating Instructions
Acontrol
–
model series PXET6Q / PXET10Q
Diagnostics / Faults
L-BAL-E016-GB 1925 Index 007
Part.-No.
26/32
