background image

Larson Electronics, LLC

 Phone: 

Fax: (903) 498-3364

www.larsonelectronics.com

3

 

of

 

5

(877) 348-9680

EXP-MS-N4X-AT-HV-V5

U   : Supply

R   :  Output relay  

or load

T  : Timing

 

: Infinity

C (y1)  : Command

• A function:

 

Delay on energisation

1 relay

Single shot timing which starts  
on energisation.

• Ad function:

  

Delay on energisation
(cannot be reset)

1 relay

After ener

 

gisation, a control pulse 

or latching contact starts timing.

 At the end of timing, the output  

is excited. The output will be reset 

when a new control pulse or  

latching contact occurs.

• Ac function:

 

 Timing after closing and opening
of control contact

1 relay

After energisation, closing of the  

control contact results in starting  

of the time delay T.

Output relay "R" (or the load)   

changes state at the end of  

this time delay. After opening of  

contact C (Y1), relay "R" drops out  

after a second time delay T.

• At function:

 

 Timing on energisation
with memory

1 relay

Adds up the opening time  

of a contact.

Output relay "R" (or the load)   

changes state at the end of timing.

• A1 function:

 

Delay on energisation

1 timer

1 instantaneous relay

• A2 function:

 

Delay on energisation

 

2 timers.

• AM function:

 

Delay on energisation

Latching during the time delay. 

• AMt function:

 

Delay on energisation

 Latching during and after  

the time delay. 

• B function:

 

    Timing on impulse (one shot) -
Shaping (cannot be reset)

1 relay

After energisation, an impulse  

 50 

(

ms) or a latching contact  

causes a change in state of the  

output relay "R" (or the load)  

which drops out at the end  

of timing.

• Bw function:

 

 Pulse output (adjustable)

1 relay

On closing and opening  

of the control contact C (Y1),  

the output relay "R" (or the  

load) changes state for as long  

as the time delay lasts.

2 timers or
2 relays including 1 instantaneous

• C function:

 

 Timing after impulse
True delay off 

(without auxiliary power supply)

1 relay

After energisation, closing of the  

control contact C (Y1) results in  

the change of state of output relay  

"R" (or the load).

Timing will only start when this  

contact opens.

• D or Di functions:

 

 Symmetrical flashing

Repetitive cycle which alternately sets the output relay "R"  

(or the load) to operating and rest position for equal periods  

of time.

1 relay

1 relay

D function:   

The cycle starts with relay  

"R" in rest position.

Di function:

The cycle starts with relay  

"R" in operating position.

• Ah function:

  

Single shot flip-flop
(cannot be reset)

After energisation, a control pulse 

or latching contact starts timing.

At the end of timing, the output is 

excited. The time delay is then 

 reset. At the end of this new time 

delay, the output reverts to its initial 

value.

 

2 timers or
2 relays including  
1 instantaneous

Timer Settings

Reviews: