Emerson 2468CD Manuel D’Utilisation

Hydrastep 2468CB and 2468CD Manual 

Delay Relay Output Board Option 

3b.2.1.1 Storage Area ............................................................................... 3 

3b.2.1.2 Pre-Installation Inspection 

........................................................... 3 

3b.2.2.1  Fitting the Nylon Spacers to the Delay Relay Output Board ....... 4 

3b.2.2.2  Mounting the Delay Relay Output Board on to the Input Board . 4 

3b.2.3.1 PCB Interconnections ................................................................. 5 

3b.2.3.2 Relay Output Connections .......................................................... 5 

3b.3.1.1  Configuring the Delay Relay Output Board ................................. 7 

3b.3.1.2  Electrode/Relay Selection (Relays RL1, RL2, RL3 & RL4) - SW1 

to SW4 ........................................................................................ 7 

3b.3.1.3  Relay Energisation (‘In Steam’ or ‘In Water’) - SW5 ................... 8 

3b.3.1.4 Electrode/Alarm Operation (RL1 function only) - SW6 ............... 8 

3b.3.1.5 System Fault Output ................................................................... 8 

3b.3.1.6 Delay Circuit Configuration ......................................................... 9 

3b.3.1.7  Configuring the Delay Circuit Split Pads ................................... 10 

3b.3.2.1 Philosophy 

................................................................................. 11 

3b.3.2.2  Relay Interconnections for Alarm/Tripping Systems ................. 11 

3b.3.2.3  ‘One out of Two’ Relay Alarm System ...................................... 12 

3b.3.2.4  ‘Two out of Two’ Relay Alarm System ...................................... 13 

3b.3.2.5  ‘Two out of Four’ Relay Alarm System ..................................... 14 

3b.3.2.6  ‘Two out of Four’ Relay Alarm System (contd.) ........................ 15 

3b.3.2.7  ‘Two out of Three’ Relay Alarm System ................................... 16