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Mounting and setting instructions
elero folding shutter drive type KL/DMA

General information

Torque switch-off

The drive incorporates an electronic torque switch-off.
The torque at which it switches off can be adjusted over a continuous
range by turning the "T" knob on the circuit board. The torque is
increased by turning in the + direction, and reduced by turning in the
- direction. The factory setting (in the centre) corresponds to the
standard value that suits most cases. After three uninterrupted travel
operations between the stops (opening and closing) the travel is
programmed. The device will automatically learn the end shut-of
points after driving against the stops for the first time. After this, 
the drive will automatically switch to a soft switch-off shortly before
reaching the stops. 
It is still, however, necessary to have the stops. It is not possible to
operate the drive without fixed stops.

Resetting

It is possible to reset the end shut-of points and/or the soft switch-off
after the system has learnt them.

Important:

It is only necessary to reset the drive if structural changes
are made to the track.

Reset procedure

1. Connect the OPEN and CLOSE direction lines to a switch.
2. Close the switch for at least 10 seconds.
3. Reconnect the device for operation.

(See connection example.)

Important:

Both drives in a pair can be reset simultaneously by
connecting them in parallel. 
Shut-off torque: 15 Nm–25 Nm, over a continuous range.
1 drive is required for each leaf. The electronics permit
multiple drives to be connected together. (Observe the
maximum rating of the power supply.)

Functional description of the rotary start-up delay knob:
1. Folding shutters without rebate profile

Adjusting the rotary knob when folding shutters
without a rebate profile are used.

2. Folding shutters with rebate profile

Range of adjustment for folding
shutter leaves with rebate profile

Range of adjustment for folding
shutter leaves without rebate profile

Adjusting the start-up delay

The drive operates without delay under the factory setting (rotary
knob in the centre position).

If a rebate profile is fitted to one of the two wings, the rotary "L-R"
knob can be adjusted for a start-up delay for left or right handed
running.
Delay: 0–20 seconds, continuous range

Technical data

Voltage:

230 V

Power:

160 W

Frequency:

50 Hz

Torque:

20 Nm

Current consumption:0,7 A

Short period operation: 4 mim

Only for internal 
connections

0-R = start-up delay for right-running
0-L  = start-up delay for left-running
(View of the shaft through the drive)

N

W8

W1

N

PE

W10

W9

PE

LC

L

R

W5

W4

W2

W6

W3

RC

W7

L

0

R

K2

L

R

K1

-

+

T

Start-up delay

Adjustment of the: 

Torque switch-off

Connection example

KL/DMA 1 folding
shutter drive

KL/DMA 2 folding
shutter drive

Mains

Extension of control is possible,
see elero-control system documentation.

Shutter
switch

After lifting off the
two rear covers 
(see front
illustration) the
circuit board
becomes visible 
as follows.

Example of connecting two folding shutters on one window

0

L

R

L

R

0

0 seconds

20 seconds

Range of
adjustment

L

0

R

0 seconds

20 seconds

Range of
adjustment

L

R

0

L

0

R

Folding shutters without rebate profile

Left motor 
circuit board

Right motor 
circuit board

L

R

0

L

0

R

Left motor 
circuit 
board

Right motor 
circuit 
board

Left-hand leaf 
with rebate profile

Right-hand leaf 
with rebate profile

0

Left 
motor 
circuit 

L

0

R

L

Right motor 
circuit 
board

R

Outer side

Figure 2

The continuously adjustable delay also makes it possible to implement
overlapping opened shutters (see Figure 3).

Overlap

left leaf

right leaf

Outer side

1 =  on
2 = off

Figure 3

Z

Figure 1

Important!

It is important that both drives are adjusted in
accordance with Figure 2. The leaf that does not
have the rebate profile also requires a start-up delay.

Operating
point

L
N
PE

Capacitor

Capacitor

Electronics

Electronics

Winding
thermostat

Winding
thermostat

Mains 230V/50Hz

Switch box

20

16 802.1901

We reserve the right to make technical changes 03/06

20

20

20

20

20

20

elero UK Ltd.

Foundry Lane – Halebank
Widnes, Cheshire WA8 8TZ

Tel. (44) 870/2 40 42 19
Fax (44) 870/2 40 40 86

[email protected]
www.elero.com

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