Electronic control unit:
A Fault/malfunction indicator
-> flashes on fault message
B Impulse indicator
-> glows when button pressed
-> flashes on valid signal from hand transmitter
C Mains voltage indicator
-> glows when voltage o.k.
-> goes out for a second when motor stops
D Display of reference point
E Display external photocell (only programming)
F CLOSE indicator. Glows when closing limit is reached
G OPEN indicator. Glows when opening limit is reached
H Programming button P
I Automatic timer indicator
J 'OPEN' test button
L 'CLOSE' test button
M Transformer with thermal overload protection
N Flashing light relay circuit board with fuse 4 A MT max.
P Programming switch for Control 300 connection
Q Programming switch for external photocell connection
S20, S20a
OFF
photocell
ON
R Plug connection for potential-free limit switch contacts
S Plug connection for flashing light connection
T Plug connection for membrane keypad
U Socket X20a module aerial
V Plug socket X20 for external photocell
W Plug socket X10 for external control elements with short-circuit plug
X1 Socket X30 optosensor CLOSED with short-circuit plug
X2 Socket X31 optosensor OPEN / CLOSED
Y Plug socket X40 for RPM sensor
Z Connecting terminal block X2 for mains voltage
A1 Plug connection X2a for transformer
B1 Connecting terminal block X3 for motor connection
C1 Connecting terminal block X2c for 'OPEN', 'CLOSE', 'STOP', 'IMPULSE' buttons
D1 Connecting terminal for protective conductor
E1 Motor fuse F1 2.5A MT max.
F1 Mains fuse F1 10A MT max.
G1 RPM sensor connecting terminal
H1 Connecting terminals automatic off / 2-wire system photocell
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