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M
O D E S
O F
O
P E R A T I O N
Automatic Start Mode (Factory Default)
9
Safety Edge Controllers Manual 99640-0010 Rev.P
Original Instructions
5 M
ODES
OF
O
PERATION
5.1. A
UTOMATIC
S
TART
M
ODE
(F
ACTORY
D
EFAULT
)
There is only one configurable option, the factory default for the unit
is Automatic Start, (See
Figure 5-1
) when power is applied to the
controller, the controller will initiate a start up self-check. When the
self-check is complete the relays will close; pressing the Safety Edge
will cause the safety relays in the controller to transfer to the open
state. When pressure is removed from the Safety Edge, the relays will
transfer back to the closed state.
Table 5-1 Wiring Connections
X1, X2
Safety Edges input
S11, S12
Jumper removed for Automatic Start
B1, B2
Supply Voltage 24VAC/DC
Z1, Z2
Reset Pushbutton or Momentary Key-switch.
No connection required for automatic start.
A1, A2
Supply Voltage 115 VAC 50/60 Hz
31, 32
Auxiliary Output
- SCC-1224: Contacts close when Safety
Edge is operated and Delayed To Open after 1
to 3 seconds.
- SCC-1224ND: Contacts close when Safety
Edge is operated and remain closed until the
Safety Edge is returned to normal.
These contacts must never be used in the safety
circuit.
13, 14
Safety Output 1
23, 24
Safety Output 2
for Automatic Start