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Hydrastep 2468CB and 2468CD Manual Relay Output Board Option
24685034 3a-1
3a
2468 - Relay Output Board Option
Contents
Page No.
3A.1 GENERAL DESCRIPTION 3
3A.2 INSTALLATION 3
3A.2.1 STORAGE & PRE-INSTALLATION INSPECTION ................................... 3
3a.2.1.1 Storage Area ............................................................................... 3
3a.2.1.2 Pre-Installation Inspection ........................................................... 3
3A.2.2 MECHANICAL INSTALLATION ................................................................ 3
3a.2.2.1 Fitting the Nylon Spacers to the Relay Output Board ................. 4
3a.2.2.2 Mounting the Relay Output Board on to the Input Board ............ 4
3A.2.3 ELECTRICAL INSTALLATION ................................................................. 5
3a.2.3.1 PCB Interconnections ................................................................. 5
3a.2.3.2 Relay Output Connections .......................................................... 5
3A.3 RELAY BOARD CONFIGURATION 6
3A.3.1 RELAY OUTPUT BOARD ......................................................................... 7
3a.3.1.1 Configuring the Relay Output Board ........................................... 7
3a.3.1.2 Electrode/Relay Selection (Relays RL1, RL2, RL3 & RL4) -
SW1 To SW4 .............................................................................. 7
3a.3.1.3 Relay Energisation (‘In Steam’ or ‘In Water’) - SW5 ................... 8
3a.3.1.4 Electrode/Alarm Operation (RL1 Function Only) - SW6 ............. 8
3a.3.1.5 System Fault Output ................................................................... 8
3A.3.2 ALARM AND TRIPPING FACILITIES ....................................................... 9
3a.3.2.1 Philosophy ................................................................................... 9
3a.3.2.2 Relay Interconnections for Alarm/Tripping Systems ................... 9
3a.3.2.3 ‘One out of Two’ Relay Alarm System ...................................... 10
3a.3.2.4 ‘Two out of Two’ Relay Alarm System ...................................... 11
3a.3.2.5 ‘Two out of Four’ Relay Alarm System ..................................... 12
3a.3.2.6 ‘Two out of Three’ Relay Alarm System ................................... 14
3A.4 COMPONENT REPLACEMENT 15
3a.4.1 REPLACEMENT OF NYLON SPACERS ................................. 15
3a.4.2 PARTS LIST - RELAY OUTPUT BOARD 24680504 ................ 15
3A.5 SPECIFICATION 16