Operating instructions

Note the following:
 The equipment connected to the low voltage inputs and out-
puts must have safe separation from dangerous voltages
according to DIN EN 61140 such as by double or reinforced
insulation according to DIN EN 60730-1 or DIN 60950-1.
The devices are equipped with a USB interface (type B) as
standard. This enables, for example, connection to a PC and oper-
ation using the Wintherm Plus control software.
This changeover contact is switched if the device changes to the
standby operating mode or if an alarm is triggered. Return flow pro-
tection can be activated in this way or faults can be registered on a
system.
Devices can be supplemented with additional interface modules.
 The analogue module (catalogue number LRZ 912) has 2
inputs and 2 outputs on a 6-pin DIN socket. The inputs and
outputs can be adjusted independently as
4...20 mA, 0...20 mA
or 0...10 V interface. For power supply of an external sensor
with evaluation electronics, the socket is supplied with 20 V.
 The RS232/485 interface module (catalogue number LRZ 913)
is designed as a 9-pin SUB-D socket. Galvanically separated
with an optocoupler. The LAUDA command set makes the
module as compatible as possible with the device lines ECO,
Proline, Proline Kryomat, Integral XT and Integral T. The
RS232 interface can be connected directly to a PC using a
straight-through cable.
 The contact module (catalogue number LRZ 914) is designed
as plug-in connector according to NAMUR NE28. This contact
module is designed to be identical to the LRZ 915, but with
only 1 output and 1 input each on 2 DIN sockets. The coupling
socket (catalogue number EQD 047) and the coupling plug
(catalogue number EQS 048) are 3-pin connectors.
 The contact module (catalogue number LRZ 915) is designed
as a 15-pin SUB-D socket. With 3 relay contact outputs
(changeover contact, max. 30 V / 0.2 A) and 3 binary inputs for
control via external potential-free contacts.
 Profibus module (catalogue number LRZ 917). Details can be
found in the separate Profibus module operating manual.
 Pt100- / LiBus module (catalogue number LRZ 918). An
external temperature sensor can be connected to the Pt100
connection of the module. The remote control unit Command
can be used with the circulation chiller via the LiBus connec-
tion. Other modules can also be connected.
 LiBus module (catalogue number LRZ 920). The remote con-
trol unit Command can be used with the circulation chiller via
the LiBus connection. Other modules can also be connected.
 USB-Ethernet module (catalogue number LRZ 921). Using this
module, the remote maintenance for the device can be acti-
vated via the Internet. Alternatively, the device can be actuated
via the interface.
USB interface
Alarm output
Other optional modules
Design and function
Variocool 19