MODEL 2604 CONTROLLER - USER GUIDE - d a n m a r k

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Installation2604 Controller2.3.5. I/O Expander (or Additional Digital Input)An I/O expander (Model No 2000IO) can be used with the 2604 to allow the number of I/Opoints to be increased by a further 20 digital inputs and 20 digital outputs. Data transfer isperformed serially via a two wire interface from instrument to expander.If the expander unit is not required it is possible to use terminals E1 & E2 as a secondarydigital input. These terminals are not part of the digital I/O terminals D1 to D8 and if used inthis way connect a 2K2, ¼ W limiting resistor in series with the input, see Figure 2-8.I/O expander connectionsE1E2DatatransferÂ20 InputsExpander20 OutputsÄI/O expander connectionsFigure 2-8: Wiring Connections for the I/O ExpanderFor details of the IO Expander refer to the Operating Instructions HA026893. Theconnections for this unit are reproduced below for convenience.E1E2Additional digital input if theexpander is not used2K2+-Limits:-1V, +35VCommsScreenTransmitterOutOutputs21 to 30E1E2+-ABCABCABCABCACACACACACAC21222324252627282930123456789102424E+-+-+-+-+-+-+-+-+-+-24V Supplyac or dcdc polaritynotimportantDigitalInputs1 to 10Outputs21 to 30Outputs31 to 40ACACACACACACACACACAC30 1010 IO Expander BoardAdditional IO ExpanderBoard31 11321233 13341435 15361637 173818391940 20+-+-+-+-+-+-+-+-+-+-DigitalInputs1 to 10DigitalInputs11 to 20Figure 2-9: IO Expander Connections2-10 User Guide Part No HA026491 Issue 3.0 Apr-02
2604 Controller Installation2.3.6. Digital I/OEight digital I/O connections are provided as standard. They can be individually configuredas:1. Inputs Run, Hold, Reset, Auto/Manual, etc, - logic or contact closure.2. Outputs Configurable as Control outputs, Programmer Events, Alarms, etc.Digital IO is not isolated from instrument ground.Digital Inputs (Logic Inputs or Contact Closure in any combination)CommonLogicinputs (1)ContactclosureinputsDCD1D2D3D4D5D6D7D8CommonThis terminal can beused for DigitalInput only (not DO)Note 1:Logic inputs can accept drive signals froma voltage source where:4V = Inactive (0) Limit +35VThis action is reversed if the input hasbeen configured as ‘Inverted’Digital Outputs (Relay, Thyristor or SSR Drive in any combination)External power supply 10 to 35 Vdc.Each output is current limited to 40mARelay+_RelayOutputs areopen collectorDCD1D2RelayThyristorUnitSSRThyristorUnitSSRD3D4D5D6D7Figure 2-10: Wiring Connections for Digital I/OUser Guide Part No HA026491 Issue 3.0 Apr-02 2-11
Page 1 and 2: 2604 Controller ContentsMODEL 2604
Page 3 and 4: RESEARCHLETTERaReference beamHOEabO
Page 5 and 6: 2604 Controller Introduction1.2. BE
Page 9 and 10: 2604 Controller Introduction1.3.2.
Page 11: 2604 Controller Introduction1.5. I/
Page 17 and 18: 2604 Controller InstallationThe thr
Page 19 and 20: 2604 Controller Installation2.3.2.
Page 21: 2604 Controller Installation2.3.4.
Page 25: 2604 Controller InstallationRS485 4
Page 29 and 30: 2604 Controller InstallationRS485 2
Page 31 and 32: 2604 Controller InstallationI/O Mod
Page 33 and 34: 2604 Controller InstallationI/O Mod
Page 35 and 36: 2604 Controller InstallationTransdu
Page 37 and 38: 2604 Controller Installation2.5.1.
Page 39 and 40: 2604 Controller Operation3. CHAPTER
Page 41 and 42: 2604 Controller Operation3.1. POWER
Page 43 and 44: 2604 Controller Operation3.3. THE A
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Page 51 and 52: 2604 Controller Operation3.6.6. Par
Page 53 and 54: 2604 Controller Operation3.7.1. Loo
Page 55 and 56: 2604 Controller Operation3.12. PARA
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2604 Controller Programmer Operatio
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2604 Controller Alarm Operation5. C
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2604 Controller Alarm Operation5.2.
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2604 Controller Appendix AA. APPEND
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2604 Controller Appendix AA.2. CONF
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2604 Controller Safety and EMC Info
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2604 Controller Technical Specifica
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MODEL 2604 CONTROLLER - USER GUIDE - d a n m a r k

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