User Manual

7/12
Building Technologies Switching and Monitoring Device RMS705 CE1N3123en
HVAC Products 30 May 2008
Mounting and installation notes
• The RMS705 and extension modules are designed for:
– Mounting in a standard cabinet conforming to DIN 43 880
– Wall mounting on an existing top hat rail (to EN 60715-TH35-7.5)
– Wall mounting with 2 fixing screws
– Flush panel mounting
• Not permitted are wet or damp spaces. The permissible environmental conditions
must be observed
• If operation shall not take place inside the control panel, the detached operator unit
type RMZ791 should be used (in place of plug-in type RMZ790)
• Disconnect the system from power supply prior to mounting the unit
• The insert must not be removed from the terminal base!
• If extension modules are used, they must be fitted to the right of the RMS705 ob-
serving the correct order in accordance with the internal configuration
• There is no electrical wiring required between the individual extension modules or
between the modules and the RMS705. The electrical connections are automatically
established when attaching the modules. If it is not possible to arrange all extension
modules side by side, the first of the detached modules must be connected to the
last module or to the unit via the RMZ780 module connector. In that case, the cumu-
lated cable length must not exceed 10 meters
• The connection terminals for protective extra low-voltage (sensors and data bus) are
located in the upper section of the unit, those for mains voltage (actuators and
pumps) at the bottom
• Each terminal (spring cage terminal) can accommodate only 1 solid wire or 1
stranded wire. To make the connections, the cables must be stripped for 7 to 8 mm.
To introduce the cables into the spring cage terminals and to remove them, a screw
driver size 0 or 1 is required. Cable strain relief can be provided with the help of the
fixing facility for cable ties
• The RMS705 can be removed from the set of modules on the rail only after the mod-
ule directly attached to it has been removed
• The unit is supplied complete with Installation and Operating Instructions
Commissioning notes
• The configuration and parameters of the standard applications offered by the
RMS705 can be changed any time by service staff who have been trained by HVAC
Products and who have the required access rights, either locally with the RMZ790
or RMZ791 operator unit or online / offline with the service tool
• During the commissioning process, the application is deactivated, the outputs are in
a defined off state, and no process and alarm signals are delivered to the bus
• On completion of configuration, the unit automatically makes a new start
• When leaving the commissioning pages, the peripheral devices connected to the
universal inputs (including the extension modules) are automatically tested and
identified. If, at a later stage, a peripheral device is missing, a fault status message
will be delivered
• The operator unit can be removed, plugged in or connected during operation
• If adaptions to specific plants are required, they must be recorded and the
documentation kept inside the control panel
• For the procedure to be followed when starting up the plant for the first time, refer to
the Installation Instructions
3123Z04en
Page of low voltage
Page of mains voltage