Additional Load Module (3Rt1916-1Ga00); Figure 3-51: Solid-State Time Relay With Semiconductor Output, Circuit Diagrams; Figure 3-52: Solid-State Time Relay With Semiconductor Output, Function Diagrams - Siemens sirius System Manual

3RT1/3RH1 contactors
Circuit diagrams
Function diagrams

3.4.4 Additional load module (3RT1916-1GA00)

Field of application
Mode of operation
3-70
3RT1926-2C
on-delay
L1(L+)
A1
A2
K1
A1 A2
K2
A1 A2
N(L-)
K2:3RT102. U = 24 V to 240 VAC/DC
S
3RT103. U = 24 V to 240 VAC/DC
S
3RT104. U = 48 V to 240 VAC/DC
S
✘
Connection prohibited!
Can be connected if required

Figure 3-51: Solid-state time relay with semiconductor output, circuit diagrams

3RT1926-2C..1, on-delay
A1/A2
Time relay
t
A1/A2
Contactor

Figure 3-52: Solid-state time relay with semiconductor output, function diagrams

The additional load module for the contactors of frame size S00 is used to
increase the permissible residual current and to limit the residual voltage of
SIMATIC semiconductor outputs.
Malfunctions can sometimes occur when SIRIUS contactors and auxiliary
contactors of frame size S00 work together with SIMATIC output modules
whose residual current at signal "0" is higher than is permissible for the con-
tactors of frame size S00. The maximum permissible residual current of the
electronic components is 3 mA for contactors of frame size S00 with a
230 VAC drive, and in the case of higher residual currents, the contactors no
longer drop down.
The additional load module is used to ensure the safe switching off of S00
contactors in the case of direct control by programmable controllers via
230 VAC semiconductor outputs.
The additional load module takes on the function of overvoltage damping at
the same time.
3RT1926-2D
off-delay with auxiliary supply
L1(L+)
S1
A1 B1 A2 A2
K1
A1 A2
K2
A1
A2
N(L-)
K2:3RT102. U = 24 V to 240 VAC/DC
S
3RT103. U = 24 V to 240 VAC/DC
S
3RT104. U = 48 V to 240 VAC/DC
S
3RT1926-2D..1, off-delay
A1/A2
Time relay
B1/A2
>
35 ms
A1/A2
Contactor
t
SIRIUS System Manual
GWA 4NEB 430 0999-02b