Assembly and Operating Instructions
Nominal voltage
System of protection
Protection class
(In accordance with the assembly specifications)
Permissible ambient temperature
Radio frequency
Type of installation
Problem
Drive is not functioning,
transmission control
light is not lit.
Blind or shutter moves in
the wrong direction.
Drive is not functioning,
transmission control
light is lit.
18
Technical data
230240 V AC / 50 Hz
IP 20
II
0 to +55 °C
868,3 Mhz
Concealed Ø 58 mm wallmounted.
Exposed in appropriate exposed casing.
What to do if...?
Cause
Faulty connection.
Faulty connection.
1. Receiver outside the
radio range.
2. Transmitter is not
programmed in the
receiver.
Remedy
Check connection.
Exchange s and t
wires in the VC421.
1. Reduce distance to
the receiver.
2. Programme transmit-
ter.