SDC UR2-4 - Manual (Page 13)

P:\INSTALLATION INST\Power Supplies\INST-UR\INST-UR2-4.vsd REV 12-11 Page 8
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P:\INSTALLATION INST\Power Supplies\INST-UR\INST-UR2-4.vsd REV 12-11 Page 13
VIII. Dual Relay Control Mode Setup
Follow the installation steps below before applying power to the UR2-4.
Refer to the DUAL RELAY CONTROL MODE wiring diagram on Page
12.
NOTE: It is assumed that the UR2-4 and locks will share the same power
supply.
Standard Operation:
In Dual Relay Control Mode, the UR2-4 operates as two (2) individually
controlled relay stations.
Activating each station’s Input 1 OR Input 2 will trigger the corresponding
lock output AND the auxiliary output simultaneously.
Inputs A1 & B1 may each be configured to operate as a conventional
relay (CR) or a time delayed relay (TD).
Inputs A2 & B2 may each be configured to operate as a conventional
relay or a latching relay (LR).
Refer to Page 3 of this instruction for relay operation descriptions.
Step 1 – Set Dip Switches
The dip switch settings below are an example of a typical Dual Relay
Control Mode Setup as shown on Page 12. Adjust the dip switch settings
as required.
Use dip switches SW1-1 through SW1-4 to select the operation of each
trigger input: CR, TD, or LR.
Step 2 – Configure the Relay Outputs to be Wet
(Voltage) or Dry.
Use the red WET/DRY Selection Jumpers to configure each output.
Refer to Page 2 of this instruction for selection procedure.
On the typical Dual Relay Control Mode wiring diagram, the Lock Relays
(Outputs 1 & 3) are configured to be wet outputs. The Monitoring Relays
(Outputs 2 &4) are dry.The relay output voltage will be the same as the
UR2-4 input voltage (12 or 24 VDC).
NOTE: It is recommended that any unused relays be configured as dry
outputs.
SW1 -1 = ON Statio n A , Input 1 M o de Selectio n {OFF = CR; ON = TD}
SW1 -2 = ON Statio n A , Input 2 M o de Selectio n {OFF = CR; ON = LR}
SW1 -3 = OFF Statio n B , Input 1 M o de Selectio n {OFF = CR; ON = TD}
SW1 -4 = OFF Statio n B , Input 2 M o de Selectio n {OFF = CR; ON = LR}
SW1 -5 = OFF
SW1 -6 = OFF
SW1 -7 = OFF
SW1 -8 = OFF
SW2-1 = ON
SW2-2 = OFF
SW2-3 = OFF
SW2-4 = OFF
SW2-5 = OFF
Sets the po larity o f A LL the trigger inputs when the trigger
is in a no n-activated state. {OFF = N/O; ON = N/C}
SW2-6 = OFF This switch must be set OFF fo r Dual Relay M o de.
SW2-7 = ON This switch must be set ON fo r Dual Relay M o de.
SW2-8 = OFF This switch must be set OFF fo r Dual Relay M o de.
When using TD mo de, SW 2-1 thro ugh 2-4 sets the unlo ck
delay time o f the relays.
SW2-1 ON = 5 sec., OFF = 0 sec.;
SW2-2 ON = 1 0 sec., OFF = 0 sec.;
SW2-3 ON = 20 sec., OFF = 0 sec.;
SW2-4 ON = 30 sec., OFF = 0 sec.;
Switch times are additive. {A ll OFF = 1 sec.; A ll ON = 65
sec.}
Step 3. Terminate the Lock Power Wiring
Follow the typical Dual Relay Control Mode wiring diagram for fail-safe or
fail-secure locks. Be careful to observe lock voltage polarity.
NOTE: All low voltage wiring shall be 18-gauge minimum. The minimum
lock power wire gauge shall be determined by the SDC wire gauge chart.
Signal wire shall be 22-guage minimum.
Step 4. Terminate the Station Trigger Inputs
Connect each station’s trigger input 1 and input 2, as required.
All the trigger inputs should be dry, momentary, Normally Open or
Normally Closed switches, depending on the configuration of Dip Switch
2-5 (Step 1).
NOTE: If Normally Closed inputs are used, all unused trigger inputs will
need to be shorted.
Step 5. Terminate Optional Inputs and Outputs
Auxiliary Inputs – These inputs must be wired to dry, Normally Open
switches. The input will only be active when closed (shorted). Refer to
Page 2 for input descriptions.
Monitoring Relay Outputs – Each door station provides a non-fused,
SPDT monitoring relay. This output may be used to signal a Security
Panel or to activate a Remote Annunciator. The relay is configurable as a
Wet or Dry output (Step 2). The relay activation will follow the Lock
Relay.
Step 6. Connect a 12 or 24VDC Power Source to the
UR2-4 Controller.
Before applying power, verify that all the connections are securely
terminated by gently pulling on each wire.
Terminate the voltage wiring to the Controller Power Input. Be careful to
observe polarity.
Verify that all the trigger inputs are in their normal (resting) state & apply
power to the controller.
Step 7. UR2-4 Controller Startup and Operation
Verification.
Verify the polarity of each Station trigger input by observing the Status
Lights located on the lower right of the controller.
Status Lights A1, A2, B1,& B2 will be OFF if Dip Switch 2-5 = OFF, or will
be ON if Dip Switch 2-5 = ON.
Test the standard operation of each station control relay by momentarily
pressing the trigger input.
In CR mode, the respective door will unlock while the trigger input is
activated, and relock when the trigger is released.
In TD mode, the respective door will unlock when the trigger input is
activated. Releasing the trigger input will start the unlock timer and the
door will remain unlocked. The door will relock after the set unlock time
has expired.
In LR mode, the respective door will unlock when the trigger input is
momentarily activated and released. The door will remained unlocked
indefinitely until the trigger input is reactivated.