Fike Epaco - 2.0 EPACOM System Overview

EPACO USER’S MANUAL
Revision Date: January, 2010 P/N E06-091 (Rev 0) Page: 3
2.0 EPACO™ SYSTEM OVERVIEW
The EPACO explosion detection and control system is comprised of explosion detectors, control unit (EPC),
power supply unit (PSU), optional annunciator module (AM) and relay cards (RC8). EPACO combines the
latest in addressable technology with simplicity of installation and maintenance. All system modules are DIN
rail mounted to allow for a variety of installation options. Three (3) bus type communication circuits tie the
various system modules into one easy to operate protection system. A non-volatile history buffer allows for
enhanced diagnostic ability to troubleshoot process situations. The optional Annunciator Module (AM), the
customer has the ability to step through a menu format to retrieve process history without having to wait for a
service agency to arrive on site.
EPACO is designed to detect and control any of Fike’s Active explosion suppression and isolation systems;
which range from chemical suppression, mechanical isolation (gate and pinch valve), chemical isolation or
any combination thereof. Detection is achieved by either pressure and/or flame radiation detectors designed
to sense the incipient explosion and trigger the explosion suppression and/or isolation systems.
EPACO System Block Diagram
2A2A2A2A2A2A
RC8 AMEPC-3 EPC-4EPC-1 EPC-2
24VDC
VOLTAGE
25VAC
OUTPUT
DB9
24VDC
DB9
ADD
2A
2
4
1
3
24VDC
6
DB9
5
ADD
MODE
78
2A
1
2
3
4
- 2A -
DB9
ADD MODE
24VDC
2A
R
EIGHT (8) PROGRAMMABLE RELAYS
NEMA ENCLOSURE
ALARM RELAY
TROUBLE/SUPERVISORY RELAY
SERIES FIRING CIRCUIT UP
TO (6) RELEASING DEVICES
CHEMICAL
ISOLATION
MECHANICAL
ISOLATION
SUPPRESSION
CONTAINER
GATE VALVE
DETECTION
CIRCUIT #2
DETECTION
CIRCUIT #1
SYSTEM DISABLE INPUT
SUPERVISORY INPUT
CONTACT CLOSURE INPUT
OR DETECTION CIRCUIT #3
XFMR
BATTERY BATTERY
NOTES:
1. MAXIMUM OF FOUR (4) EPC'S PER EPACO
SYSTEM. EACH CAPABLE OF SUPPORTING TWO
4-20 mA DETECTORS.
2. CAPABLE OF SUPPLYING POWER TO FOUR (4)
RELAY CARDS, FOUR (4) EPC CONTROLLERS AND
ONE (1) ANNUNCIATOR MODULE.
3. CAPABLE OF SUPPORTING FOUR (4) RELAY
CARDS, FOUR (4) EPC CONTROLLERS AND ONE
(1) POWER SUPPLY UNIT.
4. MAXIMUM OF FOUR (4) RELAY CARDS PER
ANNUNCIATOR MODULE.