Bosch DS150I Installation Guide - Page 2

3.2 EMF (Voltage) Spike-Protected Relay Pins 6 through 8 (wire colors gray, green, and orange) comprise the EMF spike-protected relay. Refer to Figure 3. Use this relay when connecting inductive loads to the detector. This relay protects the detector from inductive loads that might deliver damaging EMF spikes. 3.3 Non-EMF (Voltage) Spike-Protected Relay Pins 3 through 5 (wire colors yellow, violet, and blue) comprise the nonEMF spike-protected relay. Refer to Figure 3. This relay is best used for non-inductive loads. When connecting an inductive load that is not spike-protected, such as a magnetic door lock, to the detector, use either a bridge rectifier (such as a KBL01) or a diode (such as a 1N4007). Failure to use a bridge rectifier/diode may reduce the lifetime of the relay. Refer to Figure 5. Figure 5: Wiring the Bridge Rectifier DS150i Relay Contact (non-spike protected) DS150i Relay Contact (non-spike protected) + Power Supply - + Inductive SS Load + Power OR Supply - KBL01 Bridge Rectifier Inductive Load 1N4007 Diode UL 1034 listed magnetic locks typically are already EMF spike-protected, and therefore do not require the bridge rectifier or diode as shown in Figure 5. Adding a bridge rectifier/diode to an EMF spike-protected device can cause unwanted delays in response. Refer to the magnetic lock's documentation for more information. 4.0 Configuration Use the on-board DIP switches to configure the operation of the detector. Refer to Figure 6 for proper switch positioning. Figure 6: DIP Switch ON/OFF Positions ON ON ON DIP ON OFF 4.1 Resettable/Non-resettable Timer Selection DIP Switch 1 determines if the relay resets at the end of latch time, or if latch time is extended by additional motion. Refer to Table 1 and Figure 6 for more information.  Resettable: The relay activates when the detector first sees motion. Any additional motion restarts the latch timer so the relay deactivates only when the detector no longer sees motion and the latch time has expired. Hint: This setting works best when bypassing a 24-hour contact.  Non-resettable: The relay activates when the detector first sees motion. It deactivates when the latch time ends, even if motion is still present. Hint: This setting works best when used with an access control system. Table 1: Resettable/Non-resettable DIP Switch Settings Switch 1 Function OFF Non-resettable ON Resettable (Default) 4.2 Relay Mode DIP Switch 2 selects the relay mode. This allows you to select a fail safe by default, or a fail secure mode. Refer to Table 2 and Figure 6 for more information.  Fail Safe: In the event of a power loss, the REX detector releases the device connected to it (for example, magnetic door lock or electric door strike).  Fail Secure: In the event of a power loss, the REX detector does not release the device connected to it (for example, magnetic door lock or electric door strike). In Fail Secure mode, the REX detector shall be installed in a manner that does not impair the intended operation of panic hardware used in conjunction with the REX detector. Failure Secure mode must be authorized by the local Authority Having Jurisdiction (AHJ). Table 2: Relay Mode DIP Switch Settings Switch 2 Function OFF Fail Secure ON Fail Safe (Default) Refer to Figure 4 relay wiring options. 4.3 Led Enable/Disable DIP Switch 3 selects whether the on-board LED is enabled or disabled. If enabled, the LED operates normally when motion is detected. Table 3: LED Enable/Disable DIP Switch Settings Switch 3 Function OFF Disabled ON Enabled (Default) When LED is enabled, it will flash on and off when first powered up. Once the flashing LED stops, the REX is ready to be used. 4.4 Latch Time DIP Switches 4, 5, and 6 set the relay latch time. Latch time is adjustable from 0.5 sec to 64 sec. It indicates the amount of time the relay can remain active after the detector first sees motion. Table 4: Latch Time DIP Switch Settings Time (sec) Switch 4 Switch 5 0.5 (Default) OFF OFF 1 OFF OFF 2 OFF ON 4 OFF ON 8 ON OFF 16 ON OFF 32 ON ON 64 ON ON Switch 6 OFF ON OFF ON OFF ON OFF ON © 2011 Bosch Security Systems, Inc. 130 Perinton Parkway, Fairport, NY 14450-9199 USA www.boschsecurity.com F01U252565-01 Installation Guide 9/11 DS150i/DS151i Page 2 of 4