18
RWA-Emergency Power Control
System
The RWA-Emergency Power Control System is the central control unit to which all the
other components are connected. The RWA-Emergency Power Control System cont-
rols the components and supplies them with power.
The type designation of the RWA-Emergency Power Control System specifies the
maximum permissible output current for the drives and the number of ventilator
groups that can be connected:
* or 2 x E205/206 drives, E212-24 V
The number before the slash specifies the power group, the number following the
slash gives the number of ventilator groups which can be connected.
Alarm group
The RWA-Emergency Power Control System has one alarm group. The alarm group
consists of two lines:
•
An RWA switch line
•
A smoke/heat differential sensor line
If either of these lines triggers the alarm, the drives of all of the ventilator groups will
be actuated in accordance with the set alarm program.
Moreover, the alarm group can be connected to an external fire alarm system. If the
external fire alarm system triggers a fire alarm, it starts the same alarm program as
for an alarm from an RWA switch or smoke/heat differential sensor.
Ventilator groups
Depending on the version, the RWA-Emergency Power Control System supports one,
two, three or four ventilator groups. Each ventilator group has two lines:
•
A drive line
•
A ventilator switch line
All drives for a ventilator group are controlled jointly by one of the associated ventilator
switches or by the optional timer switch.
Rain/wind sensor
You can connect a rain/wind sensor, which closes all the windows in the event of rain
or strong winds. The ventilator switches are disabled as long as the rain/wind sensor
is active.
Signals
An optional daughter card provides 3 additional contacts for signals or alarm lines:
•
Alarm
: On which you can, for example, connect an audible alarm or an alarm line
to the fire station.
•
Fault
: On which you can, for example, connect a warning lamp.
•
Window Open
: On which you can, for example, connect a warning lamp.
Type designation
Maximum output
current to the drives
Maximum number of
ventilator groups
E 260 N2/1
2.0 A *
1
E 260 N4/1 to E 260 N4/2
4.0 A
1–2
E 260 N8/1 to E 260 N8/4
7.5 A
1–4
E 260 N12/1 to E 260 N12/2
12 A
1–2
Ventilator groups cannot be retrofitted.
