User manual GAI-TRONICS 12578-003

[. . . ] 42004-715L2B GAI-TRONICS® CORPORATION A HUBBELL COMPANY Model 12578-003 Monitored Input Module (MIM) Confidentiality Notice This manual is provided solely as an operational, installation, and maintenance guide and contains sensitive business and technical information that is confidential and proprietary to GAI-Tronics. GAI-Tronics retains all intellectual property and other rights in or to the information contained herein, and such information may only be used in connection with the operation of your GAI-Tronics product or system. This manual may not be disclosed in any form, in whole or in part, directly or indirectly, to any third party. How to Use the Assembly/Model Application The 12578-003 Monitored Input Module (MIM) is used in SmartSeries ADVANCE systems. GAI-Tronics uses the MIM to receive inputs from field devices, monitor the integrity of eight input lines for trouble conditions or contact activation, and report these conditions to the 69254 Series or 69440 Series Master Control Unit (MCU). [. . . ] The terminal blocks may accept conductors between sizes No. Mode 0: Deactivate Circuit In this mode, input #1 is not used and is not monitored by the MIM. If this mode is used, no external connections should be made to connector TB1. Mode 1: IDC Line Supervision Multiple Switch In this mode any number of normally-open dry contact closures may be installed on the line. The loop is monitored for ground faults and open circuits in Mode 1. The end-of-line device is a 20 k, 5% tolerance resistor. Figure 2. IDC Line Supervision Multiple Switch NOTE: The 20 k, 5% tolerance resistor is not included with the MIM. This resistor is included in a kit (12509-003), which must be ordered separately. f:\standard ioms - current release\42004 instr. manuals\42004-715l2b. doc 11/11 Model 12578-003 Monitored Input Module (MIM) Pub. 42004-715L2B Page 6 of 12 Model 2: IDC Single Normally-Open (N. O. ) Switch In this configuration, only one normally-open dry contact closure may be installed per supervised line. In this mode, the loop is monitored for open circuits, wire-to-wire short circuits (across + and -), and ground faults. When the contact closure is not active (open), the loop appears as 20. 1 k load (15 k in series with 5. 1 k). This appears on the input to the MIM and indicates a healthy loop. When the contact closure is active (closed), the 15 k resistor is bypassed. Figure 3. IDC Single Normally-Open Switch The circuit then sees only the 5. 1 k load. This changes the value of the input and indicates to the MIM that the contact closure is active. If there is a short across + and -, if either leg is grounded, or if a break occurs on either leg, the MIM indicates that a fault has occurred. NOTE: The terminating resistors are not included with the MIM. These resistors are included in a kit (12509-003) that must be ordered separately. f:\standard ioms - current release\42004 instr. manuals\42004-715l2b. doc 11/11 Model 12578-003 Monitored Input Module (MIM) Pub. 42004-715L2B Page 7 of 12 Mode 3: IDC Single Normally-Closed (N. C. ) Switch In this configuration, only one normally-closed dry contact closure may be installed per supervised line. In this mode, the loop is monitored for open circuits, wire-to-wire short circuits (across + and -), and ground faults. [. . . ] 12 AWG (3. 0 mm2) f:\standard ioms - current release\42004 instr. manuals\42004-715l2b. doc 11/11 Model 12578-003 Monitored Input Module (MIM) Mechanical Pub. 42004-715L2B Page 12 of 12 Unit dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4. 00 H × 10. 5 W × 1. 250 D inches (101. 6 × 266. 7 × 31. 75 mm) Unit weight. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ]