SIEMENS
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Siemens IC 10 · 2017
Relays
Timing Relays
SIRIUS 3RP25 timing relays, 17.5 mm and 22.5 mm
10
3RP2505 multifunctional timing relays
Setting the functions on the device
The functions of the 3RP2505 multifunctional timing relays can
be set by means of the function selector switch. Whether both
CO contacts are switched in parallel or one CO contact with a
delay and one instantaneously and the choice of time setting
range are set by means of the time setting range selector switch.
The exact operating time can be adjusted with the operating
time switch.
With a set of foil labels the timing relay can be legibly marked
with the functions which can be selected on the timing relay.
This is supplied together with the multifunctional timing relay.
The same potential must be applied to terminals A. and B.
Note:
The activation of loads parallel to the start input is permissible
when using AC/DC control voltage
(see circuit diagram)
.
Diagram
Overview of functions
2
1
Two setting options for implementing the
multifunctions (A-M):
Extended function variance by selecting
the time range and determining,
whether 2 CO switch in parallel or
whether 1 CO switches with delay + 1 CO
switches immediately (1 CO + 1 CO)
Determination of 13 functions by the
setting A to M,
with 1 CO, 1 NO, 2 CO that switch in
parallel.
1
2
IC01_00353b
IC01_00297
K2
A1
A2
N
L1
S1
K1
B1
Identifica-
tion letter
13 functions
27 functions
1 CO, 1 NO (semiconductor),
2 CO switched in parallel, or
2 CO positively driven and switched in parallel with delay
13 functions (A - M) 2 CO switched in parallel +
13 functions (A - M) 1 CO delayed + 1 CO instantaneous (1 CO + 1 CO)
and wye-delta function
A
ON-delay
ON-delay and instantaneous contact
B
OFF-delay with control signal
OFF-delay with control signal and instantaneous contact
C
ON-delay/OFF-delay with control signal
ON-delay/OFF-delay with control signal and instantaneous contact
D
Flashing, symmetrical, starting with interval
Flashing, symmetrical, starting with interval and instantaneous contact
E
Passing make contact, interval relay
Passing make contact, interval relay and instantaneous contact
F
Retriggerable interval relay with deactivated control signal
(passing break contact with control signal)
Retriggerable interval relay with deactivated control signal
(passing break contact with control signal) and instantaneous contact
G
Passing make contact, with control signal, not retriggerable
(pulse-forming with control signal)
Passing make contact, with control signal, not retriggerable
(pulse-forming with control signal) and instantaneous contact
H
Additive ON-delay, instantaneous OFF
with control signal
Additive ON-delay, instantaneous OFF with control signal and instantaneous
contact
I
Additive ON-delay with control signal
Additive ON-delay with control signal and instantaneous contact
J
Flashing, symmetrical, starting with pulse
Flashing, symmetrical, starting with pulse and instantaneous contact
K
Pulse-delayed (fixed pulse (at 1 s) and
settable pulse delay)
Pulse-delayed (fixed pulse (at 1 s) and
settable pulse delay) and instantaneous contact
L
Pulse-delayed with control signal (fixed pulse (at 1 s) and
settable pulse delay)
Pulse-delayed with control signal (fixed pulse (at 1 s) and settable pulse delay)
and instantaneous contact
M
Retriggerable interval relay with activated control signal
(watchdog)
Retriggerable interval relay with activated control signal and instantaneous
contact (watchdog)
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Wye-delta function
© Siemens AG 2016