SR2B121BD TELEMECANIQUE, SR2B121BD Datasheet - Page 4

• Manufacturer Part Number: SR2B121BD
• Description: RELAY, ZELIO, 24VDC, 8 DI/4 RO
• Manufacturer: TELEMECANIQUE

Specifications of SR2B121BD

• No. Of Analogue Inputs: 4
• No. Of Digital Inputs: 4
• No. Of Digital Outputs: 4
• Approval Bodies: CSA, UL
• External Depth: 59.5mm
• External Length / Height: 90mm
• External Width: 72mm
• Brand/series: Zelio
• Clock: Yes
• Dimensions: 71.2 × 59.5 × 107.6 mm
• Display: Yes
• Function: Programmable
• Number Of Inputs And Outputs: 12
• Number Of Outputs: 4 Relay
• Number Of Pins: 12
• Relay Type: Solid State
• Voltage, Control: 24 VDC
• Inputs: 24 VDC
• Outputs: 8 Amp, 250 VACFeatures
• For Use With: Simple

Presentation
Text function block
Up/down counter
Analogue comparator
Control relay
LCD backlighting
Output coil
Contact
Standard coil
Latch coil (Set)
Unlatch coil
(Reset)
LADDER language
Definition
Functions
Function
Timer
Fast counter
Clock
Counter comparator
Summer/Winter time switching
Electrical scheme
or
Zelio Logic smart relays
Compact and modular smart relays
“Zelio Soft” programming software
LADDER language allows a LADDER program to be written with elementary
functions, elementary function blocks and derived function blocks, as well as with
contacts, coils and variables.
The contacts, coils and variables can be annotated. Text can be placed freely within
the graphic.
b Control scheme input modes
“Zelio input” mode enables users who have directly programmed the Zelio smart
relay to find the same user interface, even when using the software for the first time.
“Free input” mode, which is more intuitive, is very user-friendly and incorporates
many additional features.
With LADDER programming language, two alternative types of symbol can be used :
v LADDER symbols,
v electrical symbols.
"Free input" mode also allows the creation of mnemonics and notes associated with
with each line of the program.
Instant switching from one input mode to the other is possible at any time, by clicking
the mouse.
Up to 120 control scheme lines can be programmed, with 5 contacts and 1 coil per
program line.
b Functions:
v 16 time delay function blocks; parameters of 11 different types can be set for each
of these (1/10
v 16 up/down counter function blocks from 0 to 32767,
v 1 fast counter (1 kHz),
v 16 text function blocks,
v 16 analogue comparator function blocks,
v 8 clock function blocks, each with 4 channels,
v 28 control relays,
v 8 counter comparators,
v automatic Summer/Winter time switching,
v variety of coil functions, latching (Set/Reset), impulse relay, contactor
v LCD screen with programmable backlighting.
LADDER language
or
S
R
I
i
th
second to 9999 hours),
Notes
I corresponds to the real state of the contact connected to the
input of the smart relay.
i corresponds to the inverse state of the contact connected to the
input of the smart relay.
The coil is energised when the contacts to which it is connected
are closed.
The coil is energised when the contacts to which it is connected
are closed. It remains tripped when the contacts re-open.
The coil is de-energised when the contacts to which it is
connected are closed.
It remains inactive when the contacts re-open.
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