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J8 (A) J8 (B) J8 (C) J8 (D) J8 (E) J8 (F) J8 (G) J8 (H) J8 (J) J8 (K) J8 (L) J8 (M) Serial Communication (Not Applicable) Inter-Controller Start (Not Applicable) Global E-Stop (Not Applicable) (Not Applicable) E-Stop Return [for J16 (E)] (Not Applicable) Inter-Controller Start Return (Not Applicable) Serial Communication RS-485, Bus A Protocol (Notes 1 thru 2) Chassis Ground +24 Volts DC @ 15 milliamps per MicroTurbine (Note 2) Chassis Ground Normal operation: N*42 milliamps. E-Stop: (+) 24 Volts DC (Note 3) Chassis Ground Spare Normal operation: N*42 milliamps. E-Stop: 0 Volts DC Reserved 30 milliamps per MicroTurbine @ 0 Volts DC Reserved RS-485, Bus B Protocol Capstone Turbine Corporation • 21211 Nordhoff Street • Chatsworth • CA 91311 • USA Technical Reference: Capstone 60 Electrical Table 9. Connector J8 – Inter-Controller (B) RS-485 Port Pin Signal Parameter Note 1: Whenever J8 is at the extremities of the RS-485 multi-drop network; Capstone-provided terminators must be installed. The maximum number of nodes is 32, and the maximum RS-485 cable length is 1000 meters. Each MicroTurbine has 1.93 meters of internal cable length, which must be included in the total length considerations. Repeaters may be added whenever the maximum cable lengths or the maximum numbers of nodes are exceeded. Note 2: No more than 20 MicroTurbines may be connected on one multi-drop branch. Parallel branch wiring must be used when N>20. Note 3: The Global E-Stop connection sinks 42 milliamps per MicroTurbine in a MultiPac E-Stop circuit. The voltage drop to the most remote MicroTurbine in the interconnecting cables must be kept to 6 volts DC maximum N≤51 on any global E-Stop multi-drop using W900 interconnecting cables. Use branch circuits for N>51. As an alternative, Connector J10, terminals 10 and 11 may be used with external wiring to connect the global E-Stop circuit in lieu of the W900 cables. The maximum voltage drop in this external cable must be < 6.0 Volts DC for the most remote MicroTurbine. Table 10. Connector J10 – Miscellaneous I/O Connections Pin Signal Parameter J10 (1) J10 (2) J10 (3) J10 (4) J10 (6) J10 (7) Chassis Ground Wake up signal if asleep (I) Return Wake up signal if asleep (I) Inter Start (I/O) Return Internal Battery Wake Signal (I) JUCB Battery Power (O) To be used for cable shield connections Isolated return for signal of J10 (3) Momentary (0.1 to 2 seconds) input +4 to +15 Volts with respect to J10 (2). Opto-isolated (±150 Volts DC maximum to earth). Return for signal of J10 (5) +5 Volts to Ground, Zin = 130 k ohms RESERVED – Do not connect external circuits. Use J10 (2) and J10 (3) for battery wake-up. +12 Volts JUCB Battery Power, 0.6 Amps re-settable fused Page 18 of 22 J10 (5) Inter Start (I/O) (O) = MultiPac start signal, +24 Volts DC, 30 milliamps/Capstone 60, 0.7 Amps maximum, momentary, 27 Capstone 60 units maximum connections. (I) = 755 ohms load 410001-001 Rev B (August 2002) This information is proprietary to Capstone Turbine Corporation. Neither this document nor the information contained herein shall be copied, disclosed to others, or used for any purposes other than the specific purpose for which this document was delivered. Capstone reserves the right to change or modify without notice, the design, the equipment ratings, and/or the contents of this document without incurring any obligation either with respect to equipment previously sold or in the process of construction.PDF Image | Technical Reference Capstone 60 Electrical
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