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Multifunction Time Relay
VL-159М-4

VL-159М-4 - multifunction time relay — **VL-159М-4**

The relay is intended for giving of the command in a control chain of schemes of automatic equipment and other devices after the expiration of previously set delay time or after counting of (in advance set) quantity of impulses – at its usage as the calculating and pulse relay.

8 functions, impulse counter (direct counting and countdown).
Digital indication including at a temperature up to minus 10 °С.
Universal power supply (2 modifications)
Wide range of time settings: from 0,1 s to 9999 min.

Technical characteristics

Power supply
Rated supply voltage (on ranges): direct and alternating current with frequency 50 Hz	AC/DC 24-42 AC/DC 110-240
Permissible deviation supply voltage	+10%...-15%
Power consumption, not more than:	5 (5) VA (W)
Output
Number of change-over contacts:	2
Switched voltage	24...250 V
Long admissible current of output circuit	not more than 4 А
Return time / preparation time	0,2 s / 0,2 s
Mechanical durability, cycles	6,3 mln.
Lower and top limits of the settings	0,1 s - 9999 min
Subranges of settings: The 1st / 2nd: The 3rd / 4th:	0,1-999,9 s / min 1-9999 s / min
Range of the fixed impulses	1 - 9999 imp.
Maximum frequency of the contact switch	10 imp./s
At using a contactless key count frequency at porosity of impulses Q=2 and at resistance of an open key not more than 200 Ohms:	not more than 120 imp./s
Time of stationary (open and closed) condition of the count contacts, ms	not less 30
Time of relay flutter, not more than	10 ms
Switching capacity of the relay, cycles, not less	10⁶
Long admissible current of the contacts	7 А
Accuracy class	0,01
Air temperature	-10...+55 °С
Protection level of the relay / terminal	IP40 / IP10
Weight of the relay, not more than	0,25 kg
Outside dimensions	70х90х65 mm

Functions of the relay

№	Function	Delay	Step
00 01 10 11	Mode of count of impulse 00 - count in return order (input > 10 Hz) 01 - count in return order (input up to 10 Hz) 10 - count in direct order (input > 10 Hz) 11 - count indirect order (input up to 10 Hz) After counting of (in advance set) quantity of impulses contacts switching will take place.	1-9999 imp.	1 imp.
02	Time-lag for switching-in After counting of (in advance set) time-lag contacts switching will take place.	0,1-999,9 s 1-9999 s 0,1-999,9 min 1-9999 min	0,1 s 1 s 0,1 min 1 min
03	Time-lag for switching-off Contacts switching with giving of Упр. After counting of (in advance set) time-lag contacts switching will take place.
04	Impulse for switching Contacts switching with disappearing of Упр. After counting of (in advance set) time-lag contacts switching will take place. During Т1 the change of Упр. influences on a state of output relay and on reference point of time-lag.
05	Time-lag for switching-off with delay Contacts switching with disappearing of Упр. After disappearing of Упр. – count of time-lag and contacts switching. During T1 the change of Упр. influences on reference point of time-lag.
06	Former pause-impulse Contacts switching with giving of Упр. After count of Т1 – contacts switching, after count of Т2 – contacts switching again and so on.
07	Former impulse-pause ПContacts switching with giving of Упр. After count of Т1 – contacts switching, after count of Т2 – contacts switching again and so on.
08	Former impulse with delay After appearing of Упр. count T1 and contacts switching must begin. After disappearing of Упр. count of T1 and contacts switching take place again.