EPC Epaco E10-0066 - EPC Input;Output and Bus Ports; EPC Input Contacts Diagram; EPC Output Connections Diagram; EPC Bus Communication Ports Diagram

FIKE CORPORATION
Page 6 of 32 Fike Explosion Protection System FM 3020541
10/06 P/N E06-051 Rev. 8
4.5 EXPLOSION PROTECTION CONTROLLER
The Explosion Protection Controller (EPC) is the main component in the system. It has five (5) input
contacts, three (3) outputs and two (2) bus communication connection points.
Exhibit 4-3 EPC Block Diagram
Exhibit 4-4 EPC Top View – P2-P4 Wiring Connections
P4P2 P3
BA
P1
BA
4-20
mA
MAXIMUM
PRESSURE
PRESSURE
NETWORKS
OUTPUTS
E10-0066
EXPLOSTION PROTECTION CONTROLLER
6 ACTUATORS's
EQUIPMENT
EQUIPMENT
PROCESS MONITORING
PROCESS MONITORING
SERIES FIRING CIRCUIT
SPDT ALARM RELAY
mA
4-20
P2-1
P2-2
P5
BELDEN 9841 OR EQUIVALENT
2 WIRE, TWISTED SHIELDED CABLE
SPDT TROUBLE/SUPERVISORY RELAY
FIRE BUS ONLY
OTHER EPC(S)
PSU, AM, RC8(S)
FIRE BUS
STATUS BUS
EPC(S) - STATUS BUS,
INPUTS
2 WIRE, TWISTED SHIELDED CABLE
DETECTION CIRCUIT 2
DETECTION CIRCUIT 1
SUPERVISORY CIRCUIT (CLASS B)
DETECTION CIRCUIT 3 (CLASS A OR B)
2 WIRE, TWISTED SHIELDED CABLE
2 WIRE, TWISTED SHIELDED CABLE
4-20mA
SWITCH(S)
PRESSURE SWITCH(S)
CONTACT CLOSURE
TRANSDUCER
TRANSDUCER
SUPERVISORY
DISABLE CIRCUIT (CLASS B)
2 WIRE, TWISTED SHIELDED CABLE
2 WIRE, TWISTED SHIELDED CABLE
POWER-24 VDC (18-30 VDC)
DISABLE
SWITCH(S)
2 WIRE, TWISTED SHIELDED CABLE
4-20mA
BELDEN 9841 OR EQUIVALENT
P3-1
P4-1
P4-2
P1-2
P1-1
P3-2
P6-1
P6-2