Bedienungsanleitung Danfoss 842 (Seite 1 von 2) (Englisch)

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The Model 841 & 842 Timeswitches must be installed

by a competent electrician and the installation

should conform to IEE Wiring Regulations.

Installation & Wiring

1. Slacken the four ﬁ xing screws, one in each corner of the unit, and

carefully separate the front and rear portions.

CAUTION: Do not allow either half of the unit to hang by the ribbon

cable as damage could be caused.

2. Remove the polystyrene packing piece from the top of the

transformer. It is marked ‘REMOVE’.

3. Select the desired ﬁ xing position and observe the label ‘THIS WAY

UP’ inside the rear portion. The two halves will only assemble

correctly one way round.

4. Four ﬁ xing holes are provided for attaching the rear portion to the

wall or mounting surface.

Conduit box adaptors as shown below are available if required.

Part No.: 8/3223 Double Gang Surface Box Adaptor

5. Surface cable entries to the units can be made from above, below

or from the left hand side. Conduit or recessed cable entry is

through the aperture in the rear moulding.

6. For surface cable entry remove the appropriate knock-out and

ensure one of the two cable clamps is positioned correctly.

7. Connections to the units should be made as shown below.

MODEL 841

MODEL 842

If the control circuit(s) are to operate at 230V then terminals L

& 1 (Model 841) and terminals L, 1 and 4 (Model 842) must be

linked, ensuring that the cable is sheathed and of a size to carry

the required load current.

If, however, the control circuit(s) are operating at other than 230V

then no link(s) shall be ﬁ tted and in the case of Model 841 both

terminals 1 and 2 should be connected to the load.

841 & 842

Seven Day Pulsed Output Electronic Timeswitches

INSTALLATION INSTRUCTIONS

In the case of Model 842 terminals 1, 2 and 3 (if required) should

be connected to the load controlled by Channel 1 and terminals

4, 5 and 6 (if required) to the load controlled by Channel 2.

8. The unit is supplied set for a 5 second single pulse output. If a multi

pulse output is required, proceed as described in paragraph 10 (b).

If a number of pulses or the pulse duration is required to be different

from supplied, proceed as described in paragraph 11(b).

9. Upon completion of wiring plug in the ribbon cable ensuring the

polarised plug is fully inserted into the socket. Reﬁ t the front half

of the timeswitch ensuring correct alignment and that no cables

are trapped before re-tightening the screws.

10. TO CHANGE FROM SINGLE TO MULTI PULSE OUTPUT

(a) Remove the front portion of the unit as described in ‘Installation

and Wiring’ paragraph 1.

(b) A 2 position slide switch is provided on the rear of the printed

circuit board inside the front portion of the unit.

With the switch positioned OUT (as supplied) this provides a single

pulse output. Slide the switch IN to achieve a multi pulse output

(½ second on followed by ½ second off).

On Model 842 a 2 position slide switch is provided for each channel

to enable different types of pulsed output if required. The switch

relating to each channel is clearly marked.

11. RESETTING OF SWITCHING DURATION

(a) Remove the front portion of the unit as described in ‘Installation

and Wiring’ paragraph 1.

(b) The bank of four miniature rocker switches is mounted on the

printed circuit board inside the front portion of the unit.

When switch no. 1 is ‘on’ 1 second duration is set.

When switch no. 2 is ‘on’ 2 seconds duration is set.

When switch no. 3 is ‘on’ 4 seconds duration is set.

When switch no. 4 is ‘on’ 8 seconds duration is set.

When all 4 switches are ‘on’ the duration is

1 + 2 + 4 + 8 = 15 seconds.

Any combination of the 4 switches may be selected to set from 1

to 15 seconds in increments of 1 second.

If all 4 switches were ‘off’ there would be no output and so this

setting should be avoided.

for each channel to enable different switching durations.

EXAMPLES

Cable

Entry

Aperture

2 ﬁ xings for

double gang

surface box

Alternative 4 ﬁ xings

for double gang

surface box

4 ﬁ xings

for Mark 8

Timeswitch

Spare N L 1 2

230V, 50 Hz

Mains Supply

Link for 230V

control circuit

Output

(LOAD)

N L 6 5 4 3 2 1

230V, 50 Hz

Mains Supply

Link for

230V

control

circuit(s)

OFF ON

Channel 2

OFF ON

Channel 1

Slider Switch Posi-

tions

‘ON’

Duration

Slider Switch Posi-

tions

‘ON’

Duration

OFF

NONE

Do Not Use

1 second

2 seconds

3 seconds

4 seconds

5 seconds

(As supplied)

6 seconds

7 seconds

8 seconds

9 seconds

10 seconds

11 seconds

12 seconds

13 seconds

14 seconds

15 seconds

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