Product and Applications Description
The push button interfaces UP 220/21 and UP 220/31 are binary
input and output devices for installation in in-wall boxes
(∅ 60 mm, depth: 40 mm).
Each of the two (UP 220/21) resp. four (UP 220/31) channels
may be used either as an input for potential-free switch / push
button contacts or as an output for control of a light emitting diode
(LED). The required scanning / control voltage is
provided by the push button interface (requires no additional
power supply).
For example, up to 2 switches/push buttons with one potentialfree
contact each or one 2-fold push button with two potentialfree
contacts may be connected to a push button interface UP
220/21. Up to 4 switches/push buttons with one potential-free
contact each or up to two 2-fold push buttons with two potential-free
contacts each may be connected to a push button interface
UP 220/31.
The connection is carried out via a cable set which is permanently
connected to the push button interface. The connecting
cables between switches/push buttons and the push button interface
may be extended up to 10 m. It must be ensured that
twisted cable pairs are used.
Commands can be given to actuators via the connected
switches/push buttons, e.g. for defined switching on/off, for
dimming fluorescent lamps or for raising/lowering venetian
blinds and adjusting the louvres.
Each channel, which is configured as an output, can drive an
output current of up to 2mA for controlling a light emitting diode
(LED).
With the ETS the application program is selected, its parameters
and addresses are assigned appropriately, and downloaded
to the push button interface UP 220/21 or UP 220/31.
Inputs
-
input signal voltage:
provided by the push button interface.
approx. 29 V DC (bus voltage) when the contact is opened
-
input signal current:
when contact is closed: 0.2 mA DC per channel
at moment of closing: pulse 0.1 A
-
input signal delay:
50 ms including contact debounce
-
duration of input signal:
min. 50 ms
-
input characteristic:
configurable
-
signal cable set:
-
length: 280 mm unshielded, may be extended up to
10 m (per channel) with twisted, unshielded cable
Unused free ends must be insulated!
-
cross-section: approx. 0.22 mm² (0.56 mm Ø)
Outputs
-
output signal voltage:
provided by the push button interface.
approx. DC 4.7V across 1.9kOhm resistor (built-in)
Connect anode of LED with terminal 1 (black/white), cathode
with terminal 2 (colored wire)
-
output current:
When the output is short-circuited the output current is
approx.2.5mA;
The connected LED’s must be specified for an impulse load
of min. 100mA (tp 10μs)