SDC UR2-4 - Manual (Page 3)

IV. Applications
For detailed wiring instructions and setup, select your specific application from the following available modes, and
continue to the page number indicated next to the section title.
Section V – 2-Door Interlock “A” Setup - Go To Pages 6 & 7
Both doors are normally closed and unlocked. Opening any door causes the other door to lock until the opened door returns to its
normal state.
Section VI – 2-Door Mantrap “B” Setup – Go To Pages 8 & 9
Both doors are normally closed and locked. Each door may be individually unlocked using the Access Control System or a remote
release. Unlocking either door causes the other door to be incapable of being unlocked until the unlocked door returns to its normal
state.
Section VII – 2-Door Interlock “C” Setup – Go To Pages 10 & 11
Both doors are normally closed. One (1) door will be normally locked, and the other door will be normally unlocked.
Unlocking/opening the locked door will lock the unlocked door, until the unsecured door returns to its normal state. Opening the
unlocked door will make the locked door incapable of being unlocked, until the opened door returns to its normal state.
Section VIII – Dual Relay Control Mode – Go To Pages 12 & 13
In Dual Relay Control Mode, the UR2-4 operates as two (2) individually controlled relay stations. Each station provides:
(1) Fused, SPDT lock output, wet or dry,
(1) Non-fused, SPDT auxiliary (monitoring) output, wet or dry, and
(2) Dry trigger inputs
Input A1 may be configured to operate as a conventional relay or a time delayed relay.
Input A2 may be configured to operate as a conventional relay or a latching relay.
Input B1 may be configured to operate as a conventional relay or a time delayed relay.
Input B2 may be configured to operate as a conventional relay or a latching relay.
As a conventional relay (CR), the lock output relay is only activated while the trigger input is activated. Once the trigger input is
released, the output relay returns to its resting state. The monitoring relay output follows the lock output relay.
As a time delayed relay (TD), the lock output relay is activated by the trigger input. Once the trigger input is released, the output
remains activated for a specified period of time, as configured by the dip switches. The monitoring relay output follows the lock output
relay.
As a latching relay (LR), the lock output relay is activated by the trigger Input. A single activation and release of the latching trigger
input latches the lock output relay. The lock output relay remains latched until the latching trigger input is reactivated. The monitoring
relay output relay follows the lock output relay.
FAIL-
SECURE
LOCK
FAIL-
SAFE
LOCK
- +
-
+
Monitoring
Relay
Output
} }
Input
1
Input
2
Station A Inputs control Outputs 1 & 2
Station B Inputs control Outputs 3 & 4
Activating each station’s Input 1 OR Input 2 will
trigger the corresponding lock output AND the
auxiliary output simultaneously.
C A1 C A2 C B1 C B2
Station A
+
(-)
W
D
W
D
FUSE
W
D
W
D
FUSE
( -
)
N
O N
C
C
( -
)
N
O N
C
C
( -
)
N
O N
C
C
( -
)
N
O N
C
C
OUTPUT 2 OUTPUT 4 OUTPUT 1 OUTPUT 3 POWER
Station B
} }
Input
1
Input
2
NOTES:
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