Service Interface - Pfannenberg 18310000004 Mode D'emploi

2.3 Collective fault signal
Two connecting contacts are available for connecting the fault signal
cable (see connection diagram). The fault signalling contact is po-
tential-free (NC contact).
No special requirements apply to the manner in which the fault signal
cable is laid.
Caution! The contact may be subjected to a maximum
load of 230 V, 1A.

2.4 Service interface

The ECoolPLANT 2.X confi guration software (including USB driver
software) can be used to make confi gurations by means of a USB
adapter (art. no. 18310000004) via the service interface. The functions
are described operating manual / software help guide.
USB adapter:
Connection
to X28
on the controller
After you are fi nished using the USB adapter, do not leave it plugged
into the unit.
The ECoolPLANT software is available for download free of charge
on the website www.pfannenberg.com.
2.5 Behaviour of the cooling unit in the event of an error
The error numbers are not displayed for units with standard controllers, but they can be made visible with the ECoolPLANT software.
Error
Unit activity
no.
LED: blinking
Compressor: OFF
Er00 Internal fan: OFF
External fan: OFF
Fault signal contact: open
LED: blinking
Compressor: OFF
Internal fan: ON
Er01
External fan: OFF
Fault signal contact: open
LED: blinking
Compressor: OFF
Internal fan: OFF
Er04
External fan: OFF
Fault signal contact: open
LED: blinking
Compressor: ON
Er05 Internal fan: ON
External fan: ON
Fault signal contact: open
LED: blinking
Compressor: ON
Internal fan: ON
Er07
External fan: ON
Fault signal contact: open
LED: blinking
Compressor: ON
Er08 Internal fan: ON
External fan: ON
Fault signal contact: open
LED: blinking
Compressor: OFF
Internal fan: OFF
External fan: OFF
Er15
Fault signal contact: open
* Option
085 408 157
USB (type B)
connection for
connection with the
computer
Technical causes
Door contact
The door contact loop has been interrupted.
Pressure control initiated
Excessively high pressure has built up in the refrig-
erant circuit.
The cooling unit cannot dissipate the heat from the
refrigerant circuit.
Phase sequence / phase failure
Failure of at least one phase or phase sequence is
incorrect.
(only with alternating current units with rotating piston
compressors)
Sensor 1 (TS1) defect
Sensor 1 Maximum
The maximum value of the switch cabinet temper-
ature 'Lit¯' has been reached or exceeded. The
cooling unit cannot suffi ciently cool the air in the
switch cabinet.
Sensor 2 (TS2) defect
Antifreeze *
Antifreeze sensor ≤ 1°C.
Safety shut-off, because there is a risk of icing of the
compressor.
Fault repair
Close door
Connect door contact switch
Bypass door contact
Check wiring
Allow the unit to cool down.
Clean the heat exchanger fi ns (internal/external).
Test the external fan for function
Check the fi eld of rotation (clockwise rotation is required).
All phases must carry nominal voltage.
Replace sensor 1 and/or the controller circuit board
(depending on the unit type)
Check the settings of the cooling unit.
Clean the heat exchanger fi ns (internal/external).
Test the internal fan for function.
Inspect the refrigerant circuit (refrigerant leak?)
If necessary, install a cooling unit with a higher cooling capacity.
Replace sensor 2 and/or the controller circuit board
(depending on the unit type).
Operational restart after the accumulated condensate water
has been evaporated, if applicable, by disconnecting and
reconnecting the operating voltage (for safety reasons,
there is no other means of resetting.
Clean the heat exchanger fi ns (internal/external).
Inspect the switch cabinet for leaks.
Select a higher switch cabinet temperature setpoint.
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