Omron SGE Series Manual page 13

Connections
Internal Connection Diagram
SCC-1224
SCC-1224ND
Wiring for input/output
SCC-1224
SCC-1224ND
Terminals
Signal Terminal
name name
Safety edge
X1, X2 Connect to SGE Safety Edge.
input
Manual/
auto reset S11, S12 Switch between auto reset and manual reset.
switch input
DC power
B1, B2 Power supply input terminals to be used with DC power supply.
supply input
Reset Input terminals for reset switch (NO contact) .
Z1, Z2
input Connect to pushbutton switch or key switch.
AC power
A1, A2 Power supply input terminals to be used with AC power supply.
supply input
• SCC-1224
Operates as one-shot delay timer that closes contacts after
power is turned ON or when the SGE safety edge operates,
Auxiliary
31-32 and open after 2 seconds or less than 3 seconds.
output
• SCC-1224ND
Contacts close when the SGE safety edge operates, and keeps
closed until the safety edge returns to its normal operation.
Safety
13-14
output 1
Turn the output ON or OFF according to safety edge inputs and
reset inputs.
Safety
23-24
output 2
LEDs
Name
Power supply LED
Lights when the power supply is ON.
indicator (Green)
Active LED indicator
Lights when pressure is applied to the SGE safety edge, blinks during interlock state.
When pressure is released, the interlock is reset and turned OFF.
(Yellow)
Lights when a wiring error of the safety edge occurs such as cable disconnection
Error LED indicator (Red) of the SGE safety edge, contact failure of terminal X1 and X2 of the SCC edge controller,
or when a terminating resistor is not connected to the safety edge.
Lights when pressure is applied to the SGE safety edge, and blinks when an auxiliary output contact is closed (auxiliary output ON) .
Auxiliary output LED
SCC-1224: Lights OFF after 2 seconds or more/less than 3 seconds.
indicator (Orange)
SCC-1224ND: Keeps ON while pressure is applied to the SGE safety edge.
S11 S12
A1
AC power
supply
circuit
A2
Main circuit
B1
DC power
supply
circuit
B2
X1 X2
Z1,Z2
Reset input
B1,B2
Z1
B1
DC power supply input
Power LED indicator (Green)
Active LED indicator (Yellow)
Error LED indicator (Red)
Auxiliary output LED indicator
(Orange)
SCC-1224
A1
13
A1,A2
AC power supply input
13,14
Safety output 1
Jumper
Note: A jumper is set between terminal 14 and 23 in the default settings.
Remove the jumper if safety output 1 and 2 are not connected in series.
Operation
Z1 Z2 13 23 31
14 24 32
S11,S12
Manual/auto reset switch input
Z2 S11 S12 X1,X2
B2 X1 X2
Safety edge input
Power
Actuate
Fault
Aux. Output
A2 31 32
14 23 24
31,32
Auxiliary output
23,24
Safety output 2
Connect a 2-wire cable to SGE Safety Edge. There is no polarity.
• For auto reset, open the terminal between S11 and S12 (Default setting)
• For manual reset, short-circuit the terminal between S11 and S12.
Open when using them with AC power supply.
They do not need to be connected for auto reset mode.
Open when using them with DC power supply.
Open when not used.
Do not use this contact for safety circuits.
Open when not used.
A jumper is set between terminal 14 and 23 in the default settings.
Remove the jumper if safety output 1 and 2 are not connected in
series.
Description
SGE/SCC
Wiring
13