NCF Timing Relay

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Description

Multifunction
Timing
ranges
Functions No. of relay
outputs
Voltages
(V)
Reference
2 C/O contacts
▪ Multifunction
▪ Multiple timing ranges
▪ Multivoltage
▪ 2 relay outputs: 8 A – 250 V
▪ Screw terminals
▪ State indication by LED
▪ Option of supplying a load in
parallel
▪ 3-wire sensor control option
0.1 s to 999 h A, Ac, Ad, Ah, Ak, At
B, Bw
C
D, Di, Dt, Dit
H, Ht
L, Li, Lt, Lit
N
O
P, Pt
Qt, Qtt
TI, Tt
W
2 RENF22R2MMW
NFC timing relay mobile application
To use NFC timing relay, an Android phone with NFC feature and Android firmware (version 4.1 and above are
required. The Zelio NFC app can be downloaded in the mobile with one of the following methods:
▪ Align the mobile phone NFC antenna to the product NFC antenna. This will take you to the Google Play page
for downloading the app.
▪ Go to Google Play and search for “Zelio NFC”.
▪ Scan the QR code to download the Zelio NFC app. Please refer to Zelio NFC Timing Relay catalogue.
Definitions
Functions
Timing functions are ideantified by letters. The functions have to be selected correctly from the Zelio NFC app;
refer to functional diagrams for connection.
Main timing
functions
Complementary
functions (1)
Definitions
A (2)
Ac
At
Ad
Ah
Ak
Power on-delay relay
On-delay and off-delay relay with control signal
Power on-delay relay with pause / summation control signal
Pulse delayed relay with control signal
Pulse delayed relay (single cycle) with control signal
Asymmetrical on-delay and off-delay relay control signal
B (2)
Bw
Interval relay (single shot) with control signal
Double interval relay with control signal
C (2) Off-delay relay with control signal
D (2)
Di (2)
Dit
Dt
Symmetrical flashing relay (starting pluse-off)
Symmetrical flashing relay (starting pluse-off)
Symmetrical flashing relay (starting pluse-off) with pause / summation control signal
Symmetrical flashing relay (starting pluse-off) with pause / summation control signal
H (2)
Ht
Interval relay
Interval relay with pause / summation control signal
L (2)
Li (2)
Lit
Lt
Asymmentrical flashing relay (stsrting pulse-off)
Asymmentrical flashing relay (stsrting pulse-on)
Asymmentrical flashing relay (stsrting pulse-on) with pause / summation control signal
Safe-guard relay
N Delayed safe-guard relay
O Pulse delayed relay with fixed pulse length
P
Pt
Pulse delayed relay with fixed pulse length, pause / summation control signal
Star-delta relay (2 C/O output with split common)
Q Qt Star-delta relay (2 C/O output with split common) pause / summation control signal
T Qtt
Tl
Tt
Bistable relay with control signal on
Retriggerable bistable relay with control signal on
Interval relay with control signal of
W

(1) Complementary functions enchance the main timing functions. Example: Ac: timing after closing and opening
of control contact.
(2) The most commonly used timing functions.
(3) The default function for NFC Timer product is Function A (Poweron-delay) and T=3s.