9.3 External reset
In the event of serious malfunctions or after too many
automatic resetting operations, the module locks. In
this case, the system must be checked before unlock-
ing:
• Determine the cause in the safety chain. To do this,
evaluate alarm messages from the BEST
SOFTWARE.
• Eliminate the cause(s) of the fault.
• Reset externally.
The compressor starts when there is a capacity de-
mand.
The module can be unlocked in various ways. All sys-
tem-related alarms with the exception of the motor tem-
perature monitoring can be unlocked via Modbus com-
mand or with the BEST SOFTWARE.
• With a Modbus command (Control Word).
• With the BEST SOFTWARE in the menu A
der R
.
ESET
• Disconnect the voltage supply (L/N) for at least 5 s
by actuating switch S2 (reset).
If the motor temperature is too high, the module locks
itself. To unlock the device, the voltage supply (L/N)
must be interrupted for at least 5 seconds.
9.4 Alarm list
The list of all possible alarms, the causes of malfunc-
tions and the type of release can be found in the
BEST SOFTWARE and in the Reference Guide
chapter Alarm list.
KT-230-2
10 Monitoring the operating parameters using the
BEST SOFTWARE
The BEST SOFTWARE provides comprehensive ac-
cess to all operating data and parameters and can be
downloaded free of charge from the BITZER website
(www.bitzer.de).
10.1 Establishing communication via the BEST
SOFTWARE
• PC/mobile device
– with the Windows 7 or newer operating system
– with Bluetooth interface or USB connection
– with installed BEST SOFTWARE
• For communication via the USB port:
– Connect the BEST interface converter to the com-
pressor module (CN14) and to the PC or mobile
device.
un-
LARMS
Setting up communication
• Switch on PC/mobile device and start the BEST
SOFTWARE (1).
• Click on the N
• Select IQ MODULE CM-RC-01 (3).
Fig. 12: Connecting CM-RC-01 to BEST SOFTWARE
• Click on the C
The following appears for selection: BEST
or B
LUETOOTH
• SelectionBEST
Click on the C
The compressor module is now connected to the PC
or mobile device.
button (2).
EW
button (4).
ONNECT
.
:
CONVERTER
button.
ONNECT
CONVERTER
27