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3RP10, 3RP15 solid-state time relays
SIRIUS System Manual
7-18
GWA 4NEB 430 0999-02b
The 3RP15 40 solid-state time relay without auxiliary supply
The time relay is available with either 1 or 2 changeover contacts.
Time ranges
Seven time ranges can be set by means of a rotary switch. Times ranging
from 0.05 to 100 s are possible.
Important
Changes to the time range are only effective if they are made in a deenergi-
zed state.
Function diagrams
The function diagram for the time relay with 1 changeover contact and with
2 changeover contacts:
Figure 7-12: 3RP15 40 function diagram
Mode of operation
When the rated control supply voltage is applied, the time relay switches
over. After the rated control supply voltage has been disconnected, the runt-
ime t starts. After t has finished, the relay switches back to the quiet state.
If the minimum on-time is not adhered to, it is ensured that either the timing
period will not start or that a started timing period will always be properly
completed.
Intermediate states in the function process, such as the relay getting stuck,
are successfully prevented.
7.3.5 Clock pulse generator (3RP15 55 solid-state time relay)
Description
The idle time and the pulse time of the clock pulse generator and the time
ranges must be set separately.
The pulsing function begins with the break.
The time relay contains a changeover contact.
Time ranges
Fifteen time ranges can be set by means of a rotary switch.
Important
Changes to the time range are only effective if they are made in a deenergi-
zed state. A pulse, for example, can be output cyclically for 1 second after a
break of 1 hour.
Off-delay
OFF DELAY
25/28
25/26
A1/A2
15/18
15/16
2
Off-delay
OFF DELAY
A1/A2
15/18
15/16
2
2 changeover contacts
1 changeover contact
25/28
25/26
A1/A2
15/18
15/16
2