Factory Direct Hardware LCN 9531 - Manual (Page 7)

740100-00(5) Page 7 of 14
The keypad EL (electric lock) setting is SA (fail safe). When the operator is on, the strike is locked when
the door is closed and unlocked when the door is opening. When the 3-position switch is set to OFF, the
strike is unlocked.
The keypad EL (electric lock) setting is SE (fail secure). The control box locking relay signals the PS873
x 871-2. When the operator is on, the EL device is locked when the door is closed and unlocked when the
door is opening. When the 3-position switch is set to OFF, the EL device is locked.
Figure 3-7. Sample Wiring for a Fail Secure EL (Electric Latch Retraction) Locking Device
Figure 3-6. Sample Wiring for a Fail Safe Electric Strike Locking Device
Cable 761465 to Middle or
Senior Swing control box locking
interface receptacle (P10) Fail safe
electric
strike
Rectifier
(for DC
strikes)
Middle or Senior Swing
control box
EL device
Von Duprin
PS873 x 871-2
Gray (COM)
Violet (NO)
Cable 761465 to Middle or
Senior Swing control box locking
interface receptacle (P10) SC I1 O1 GND
Middle or Senior Swing control box
3. WIRING (continued)
NOTE !
Always wire the locking device to the NO (normally open) contact of the control box locking interface
and use the keypad to set the EL (electric lock) setting to either SA (fail safe) or SE (fail secure).
Control box lock supply rating: 24 VAC, 1.5 A
White
White
Gray (COM)
Violet (NO)
White
White
Black
Red
Cut connector off rectifier, then
connect using wire nuts
When using an EL device such as EL33A, EL99, etc:
Use 12 AWG stranded wire for outputs 01 and 02
between PS873 and EL device (200’ run maximum).