Eurotherm PC300 Installation Manual And User's Manual

HA 026773 Page 1 of 4
Issue 1.3 June 2000

Installation Manual and

User guide

PC300 Process control system

The PC300 process control system uses highly reliable and field tested PC3000 components. The unit
includes an integral power supply, the Local Controller Module ’plus’ and two free module positions for
installing other I/O modules. The PC300 has a steel case construction and is designed for backplane
mounting.

Specification

General

Supply voltage range 85 to 132V ac rms

176 to 240V ac rms
Selected by external wiring option

Supply frequency range 48 - 62 Hz
VA requirements < 40VA for fully loaded rack
Power Supply Output 50W total, 24V @ 1.6A, 5V @ 2.5A

Inrush Current 25A, single cycle, cold start, high

line
Power supply hold up
time

>20ms at minimum line voltage and

maximum load (> 100ms t ypical)
Input protection RFI Input filter, transient protection
Replaceable Fuse Rating 1.6A time lag

Mechanical

Height 193 mm, inc. mounting brackets
Depth 203 mm, inc. mounting brackets
Width 316 mm
Mount i ng Bulkhe a d mou nting
Casing Robust Metal case to IP20
Module capacity 2 single with I/O slots
Ventilation Space 25mm free space above and below

Environmental

Operating Temperature 0 to 50o C
Storage Temperature -20 to 70o C
Relative Hu midity 5 to 95 % non-condensi ng
Weight 5.25 Kg
Weight support brackets 0.4 Kg each

EMC

Emissions EN50081-2: 1994
Immunity EN50082-2: 1992

Safety

EN61010-1: 1993/A2: 1995

Installatio n c at II, Pollutio n d egree 2

LCM-Plus

RAM 256K base RAM

Slot 1 512K standard
Slot 2 128k for special FB (optional)

Communications Ports

Ports A & B User po rts

Port C PC3000 extension rack port

Standard

Ports A & B RS422

Port C RS485 / RS422 (jumper selectable)

Baud Rates

Ports A & B 300 to 38.4k

Port C 300 to 115k

Protocols Software selectable

(2 of ports A,B, C)

Available I/O modules

Analogue Input 0-100mV

0-10V
0-20mA
Thermocouple (J,K,R,S,B,Pyro)
PT100 Resistance Thermometer
Frequency 0-10kHz
Zirconia probe

Analogue Output 0-5V, 0-10V, -10 to +10V etc

4-20mA, 0-20mA etc

Digital Inputs 5Vdc

25Vdc
24Vac
85-264Vac
Volt Free

Digital Out Logic

Relay (N/O)

Pulse Input 200kHz - 5v, 12v(selectable)

PC300 User Guide

HA 026773 Page 2 of 4
Issue 1.3 June 2000

Installation

Dimensional Details (mm)

Location

The Power Supply Unit resides in the first ’slot’ in every rack. The second ’slot’ contains the Local
Control Module.

I/O module addresses

Configuration is made simple - there is no requirement to configure jumpers or switches to set I/O module
addresses . The module address is read directly from t he backplane.

Compatability

The PC300 is directly compatible with and a subset of the PC3000. The two products share I/0 cards,
programming tools.and instruction manuals.

Manuals

PC3000 instruction manuals are used for the PC300.

219
316

4453

3042120

193

166

44

16

182

Alternate Bracket Position

94

203

Earth Connection

M8

338

Allow 15mm clearance
above bracket for fitti n g

Note:

5 THK.

PC300 User Guide

HA 026773 Page 3 of 4
Issue 1.3 June 2000

User Wiring
Slot 1

Supply Voltage

Configuration of the supply voltage is selected by an
external wiring option. A link is necessary between
terminals 10 and 11 for 85 to 132 V ac operation.

Health Relay

The health relay is energised during normal operation, and
is de-ene r g is e d if the system watch do g fail s . W atc hdog
failure can be caused by the applications program failing
to run correctly of a system hardware failure.

Slot 2

Commissioning is simplified by the provision of status indicators fitted to the front of the module.
Indication of system status (run and fault), I/O processor status (run and fault), system diagnostic
functions and communication channel activity are provided.

System and IOC status LED’s

F = Fault
R = Run

Diagnostic LED’s

Consult ’PC3000 Hardware Reference Manual’ for details

Communication LED’s

A, B, C. Serial channel communication activity
D Extension rack communication activity

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nc
nc
nc
nc
C Common
N/O Normally Open Health
N/C Normally Closed Re lay
nc
nc
Lk Link for
Lk 85 - 132v operation
nc
L Live
N Neutral
Earth

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15

Label Function

Terminal

Status Indication

24V

5V

System [Health Relay]
Auxilary Supply

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S yst em
Status

IOC
Status

F

R

Status Indication

Diagn ostic s
Communications

R

F

1

24

3

AB D

C

Connections to serial p orts

A

Extension Rack O n ly

C

B

8 4
7 3
6 2
5 1

Pi n

1: Rx
2: Tx
3: Tx ­4: Tx +
5: Rx­6: Rx+
7: 0V
8: 0V

232

422

PC300 User Guide

HA 026773 Page 4 of 4
Issue 1.3 June 2000

Safety Notes

Warning!

The mains (supply) voltage must be isolated before the mains (supply) connector is handled.

Warning!

Any interruption of the protect ive conductor in sid e or outside the apparatus or disconnection of
the protec tive earth term inal is likely to make the appara tus dangerous under some fault
conditions. Intentional interruption is prohibited.

Note: In order to comply with the requirements of safety standard EN61010, the power supply
module must have one of the following as a disconnection device, fitted within easy reach of the
operator and labelled as a disconnection device.

i. A switch or circ ui t br eaker which complies with the requireme nts of IEC947-1 a n d IEC947-3
ii. A separable coupler which can be disconnected without the use of a tool
iii. A separable plug, without a locking device, to mate with a socket outlet in the building.

1. Before any other connection is made, the protective earth terminal shall be connected to a protective

conductor.

2. The Mains (supply voltage) wiring must be terminated in such a way that the Earth wire would be

the last wire to become disconnected should excess tension be applied to the mains cable.

3. It is recommended that crimps be used to terminate the wires before they are inserted into the

terminal bl o cks .

4. The Mains supply fuse within the Power supply unit is replaceable and should only be replaced with

a fuse of the same type and rating. In no conditions should the fuse be replaced with one of a higher
rating.

5. Whenever it is likely that protection has been impaired, the unit shall be made inoperative and

secured against unintended operat ion. The nearest manufacturers service c entre should be consulted
for advice.

6. Any adjustment, maintenance or repair of the opened apparatus und er voltage, is proh ibited.

7. The unit is designed for use only in an enclosure.

8. Where conductive pollution (e.g. condensation, carbon dust) is likely, adequate air conditioning /

filtering / sealing etc. mu st be installed in the enclosure.

9. If the equipment is used in a manner not specified by the man uf acturer, the pro te ction prov ided by

the equipment might be im paired.

Symbols used on the unit labelling

One or more of the symbols may appear on the apparatus.

!

Refer to User Guide for instructions
Protective Earth

L

Connect the ’line ’( switched) wire her e

N

Connect the neutral wire her e

Eurotherm Ltd.
Faraday Close, Durrington, Worthing, West Sussex,
BN13 3PL, UK. Tel [phone]