Hoyles Multi Function Timer Relay User Manual

S351 universal timer relay, Hoyles electronic developments ltd, Timing function with

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S351 Universal Timer Relay

Timing Function with

Timing Function with

Control Functions

latching trigger

momentary trigger

Commutating Relay

Bell cut off timer

Reset pulse

Setup

Setup

Setup

The function control terminals C and D The function control terminals, D is The function control terminals, C is

are not connected. The Relay control connected to +ve and C is not connected to +ve and D is not

jumper is in position R0 and the timing connected. The relay control jumper is connected. The relay control jumper is

range T1 and T2 are not connected in position R1.

in position R1.

and have no function. The POT has no Timing ranges

Timing ranges

function.

Without a link in T1 and T2 is the lower Without a link in T1 and T2 is the lower

Operation

range from less than 1 second up to 60 range from less than 1 second up to 60

Apply a trigger. The relay changes over seconds. When T1 and T2 are linked, seconds. When T1 and T2 are linked,

and the green led indicates. This will this is the upper range from less than 1 this is the upper range from less than 1

remain until the first trigger is removed minute up to 60 minutes.

minute up to 60 minutes.

and a second trigger is applied, then Operation

Operation

the relay will switch back and the red Apply a trigger, the green led Apply a trigger, the green led

led will indicate, until the trigger is illuminates, but the relay doesn’t illuminates, but the relay doesn’t

removed when the led will extinguish.

switch. If the trigger is removed, the led switch. If the trigger is removed, the
extinguishes and the timing is stopped. timing continues . When the time

A-stabling Relay

If the time period expires while the period expires with the trigger

Setup

trigger is still applied, then the relay removed, then the relay switches and

The function control terminals C and D switches and the red led illuminates. the red led illuminates. This will remain
are both connected to +ve. The Relay This will remain until the trigger is for 1 second, then the relay will switch
control jumper is in position R0 and removed.

back and the led extinguish.

has no function.
Rate of A-stable.

Max time switch

Pulse stretching

Without a link in T1 and T2 is the lower Setup

Setup

range from less than 1 second up to 10 The function control terminals, D is The function control terminals, C is

seconds. When T1 and T2 are linked, connected to +ve and C is not connected to +ve and D is not

this is the upper range from 3 to 60 connected. The relay control jumper is connected. The relay control jumper is

seconds.

in position R0.

in position R0.

Operation

Timing ranges as above.

Timing ranges as above.

Apply a trigger and the relay will a- Operation

Operation

stable. When the relay is switched the Apply a trigger, the green led Apply a trigger, the green led

green led illuminates and when the illuminates, and the relay switches. If illuminates, and the relay switches. If

relay is un-switched, the red led the t rigg er is remo ved, the l ed the trigger is removed, the timing

illuminates. When the trigger is extinguishes, the relay switches back continues. When the time period

removed, the relay will stop a-stabling, and the timing is stopped. If the time expires with the trigger removed, the

reset to the un-switched state and the period expires while the trigger is still relay switches back and the red led

led will extinguish.

applied, then the relay switches back illuminates for 1 second and then
and the red led illuminates. This will extinguishes.
remain until the trigger is removed.

The trigger terminals, A is a -ve applied to trigger, B is +ve applied to trigger.

Note
This unit requires 12v dc to power it at all times. (10-14v dc).
If the input is not removed when the timing has finished in both
momentary trigger modes, then the led will remain illuminated red
and the relay will remain in the state that it was when the led
illuminated red until the trigger is removed.

Contact ratings
The relay is DPCO rated 1Amp @ 12v dc. It must not be used to
switch mains voltages.

60135 Iss 1 Sept 11

T. 01744 886600 F. 01744 886607 E. [email protected] W. www.hoyles.com

Hoyles Electronic Developments Ltd

12V DC

-VE TRIGGER

Function
Controls

Timing
Range

+VE TRIGGER

Relay
Control

L

E

D

1

L

E

D

2

N

C

+

A

D

B

C

-

R

E

L

A

Y

1

0

2

1

-1

0

5

is

s

2

R

E

L

A

Y

2

N

C

N

O

N

O

M

IN

M

A

X

C

O

M

C

O

M

T

1

T

2

J

1

R

0

R

1

Boxed Version. If you have the boxed version of the S351, the decal
(included) has a clear window 10mm x 46mm. The area under the
decal is 12mm wide to take standard labelling machine tape. The
window is free from adhesive, nevertheless, it is wise to maintain
cleanliness and avoid fingerprints on the inside of the window. If a
labelling machine is not available a paper label can be used. For a
small extra charge these products can be factory labelled to your
requirements (subject to a character limit).

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