Eurotherm EFit User manual

User Guide
Power Controller
HA031980ENG issue 1
February 2014
EFit

Thyristor power controllers
EFit Series
For the control of heating elements up to 25 Kw
User Manual
Before installation, please read this manual thoroughly.
Eurotherm cannot be held responsible for any damage to persons
or property, or for any financial loss or costs arising from incorrect
use of the product or failure to observe the instructions given in
this manual.
In order to maintain its ‘leading edge’ Eurotherm may have to
make changes to its specifications without advance notice.
For any further information, or if in doubt, please contact Invensys
Eurotherm, where qualified staff are available to advise or assist
you with the commissioning of your installation.
Guarantee
Two years parts and labour garantee

EFit User Manual

Contents List
1. Safety notes
1.1 Warnings
1.2 SELV
1.3 Symbols used on the instrument labeling
2. Technical specifications
3. Codification
3.1 Ordering code
3.2 Fuses
4. Mechanical installation
4.1 Dimensional details
4.2 Front fascia
5. Electrical Installation
5.1 Terminals and connectors
5.2 Connector view
5.2.1 View on lower face
5.2.2 View on upper face
6. Control wiring
6.1 Input signal wiring
6.1.1 Remote Control
6.1.2 Local control by potentiometer
6.1.3 Local control by contacts
6.2 Auxiliary power supply (option)
7. Current limit option
7.1 Operations
7.2 Adjustment
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EFit User Manual
8. Thyristors firing modes
8.1 Fast cycle
8.2 Single-cycle
8.3 Advanced Single-cycle
8.4 Phase angle
9. Power control
9.1 Description
9.2 Compensation of power supply fluctuations
10. Current derating
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EFit User Manual
1. SAFETY NOTES
1.1 WARNING
BRANCH-CIRCUIT PROTECTION
AND SAFETY OVERLOAD PROTECTION
This product does not contain any branch-circuit protection or
internal safety overload protection. It is the responsibility of the
user to add branch-circuit protection upstream of the unit. It is
also the responsibility of the user to provide external or remote
safety overload protection to the end installation.
Such branch-circuit and safety overload protection must comply
with applicable local regulations.
UL: The above mentioned branch-circuit protection is necessary
for compliance with National Electric Code (NEC) requirements.
If opening of the branch circuit protective or the supplemental fuses
(high speed fuse) EFit shall be examined and replaced if damaged.
It is strongly recommended that the installing authority includes
independent, system-safety mechanisms to protect both
personnel and equipment against injury or damage, and that
such safety mechanisms be regularly inspected and maintained.
Consult the EFit supplier for advice.
The instrument shall have one of the following as a disconnecting
device, fitted within easy reach of the operator, and labelled as
the disconnecting device.
a. A branch-circuit protection (circuit breaker or fuse which
complies with the requirements of IEC60947-1).
b. A separable coupler which can be disconnected without the
use of a tool.
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EFit User Manual
1. Any interruption of the protective conductor outside the
equipment, or disconnection of the protective earth terminal is
likely to make the device dangerous under some fault conditions.
Intentional interruption is prohibited.
2. Before carrying out any wiring to the unit it must be ensured that
all relevant power and control cables, leads or harnesses are isolated
from voltage sources. Wire conductor cross sections must comply
with table 9 of IEC60947-1 (or NEC, Article 310 Table 310-16).
3. This equipment is not suitable for isolation applications, within
the meaning of IEC60947-1.
4. The heatsink becomes hot whilst the unit is running, and it can take
up to 15 minutes to cool after the unit is shut down. The heatsink
temperature may rise above 50 degrees Celsius. If operators are
likely to come into contact with such heatsinks, adequate warnings
and barriers must be put in place in order to prevent injury.
Before any other connection is made, the protective earth terminal
shall be connected to a protective conductor by a listed ring crimp.
Whenever it is likely that protection has been impaired, the
unit shall be made inoperative, and secured against accidental
operation. The manufacturer’s nearest service centre should be
contacted for advice.
Any adjustment, maintenance and repair of the opened apparatus
under voltage, is forbidden for safety reasons.
Units are designed to be installed in a cabinet connected to the
protective earth according to IEC60364-1 and IEC60364-5-54 or
applicable national standards. The cabinet must be closed under
normal operating conditions. Adequate air conditioning/ filtering/
cooling equipment must be fitted to the cabinet in order to prevent
the ingress of conductive pollution, the formation of condensation etc.
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EFit User Manual
5. Units are designed to be mounted vertically. There must be
no obstructions (above or below) which could reduce or hamper
airflow. If more than one set of units is located in the same
cabinet, they must be mounted in such a way that air from one
unit is not drawn into another.
6. Signal and power voltage wiring must be kept separate from
one another. Where this is impractical, shielded cables should be
used for the signal wiring.
7. If the equipment is used in a manner not specified by the
manufacturer, the protection provided by the equipment might
be impaired.
8. This product has been designed for environment A (Industrial).
Use of this product in environment B (domestic, commercial
and light industrial) may cause unwanted electromagnetic
disturbances in which cases the user may be required to take
adequate mitigation measures.
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EFit User Manual
1.2 SELV
Safety Extra Low Voltage. This is defined (in IEC60947-1) as an
electrical circuit in which the voltage cannot exceed ‘ELV’ under
normal conditions or under single fault conditions, including
earth faults in other circuits. The definition of ELV is complex as it
depends on environment, signal frequency etc. See IEC 61140 for
further details. The input connector (pin 5 to 7) is compliant to the
SELV requirements.
1.3 SYMBOLS USED IN THE INSTRUMENT LABELING
One or more of the symbols below may appear as a part of the
instrument labeling.
!
Protective conductor terminal
AC supply only
Underwriters Laboratories listed
mark for Canada and the US
Risk of electric shock
Refer to the manual for instructions
Precautions against static electrical discharge
must be taken when handling this unit
Do not touch Heatsink
Hot Surface
Declaration of conformity
to European standard
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EFit User Manual
2. Technical specifications
General
Directive EMC directive 2004/108/EC
Low Voltage Directive 2006/95/EC
Safety specification EN 60947-4-3:2000 ( 2000-01-12 )
+ EN 60947-4-3:2000/A1:2006 (2006-12-08)
+ EN 60947-4-3:2000/A2:2011 (2011-09-02)
EMC emissions
specification
EN 60947-4-3:2000 ( 2000-01-12 )
+ EN 60947-4-3:2000/A1:2006 (2006-12-08)
+ EN 60947-4-3:2000/A2:2011 (2011-09-02)
Class A product
EMC immunity
specification
EN 60947-4-3:2000 (2000-01-12 )
EN 60947-4-3:2000/A1:2006 (2006-12-08)
EN 60947-4-3:2000/A2:2011 (2011-09-02)
Vibration tests EN60947-1 annex Q category E
Shock tests EN60947-1 annex Q category E
Approvals
cUL UL60947-4-1A and UL60947-1
CE EN60947-4-3 and EN 60947-1
A certificate of conformity can be provided on
simple request
CCC (China
Compulsory Certificate)
Product not listed in catalogue of Products Subject
to Compulsory Certification
Protection IP20 According to EN60529 - CE, Open type - UL
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Installation Category
Rated impulse
withstand voltage
(U imp)
Rated
insulated
voltage (Ui)
Installation
Category
CE UL CE UL
Control 0,5kV 0,8kV 50V II III
Auxilary Supply 2,5kV 4kV 230V II III
Power terminals 4kV 6kV 500V II III

EFit User Manual
Condition of use
Atmosphere Non-corrosive, non-explosive, non-conductive
Usage temperature 0 to 45°C without derating
Storage temperature –25°C to 70°C (maximum)
Altitude 1000m maximum at 45 °C
2000 m maximum at 40°C
Degree of pollution Degree 2
Humidity limits 5% to 95% RH (non-condensing)
Mechanical Details
Dimensions
Model 16 amps
Model 25 amps
Model 40 amps
Model 50 amps
115 mm (Height) x 52.5 mm (Width) x 92.5 mm (Depth)
115 mm (Height) x 70 mm (Width) x 92.5 mm (Depth)
115 mm (Height) x 105 mm (Width) x 92.5 mm (Depth)
115 mm (Height) x 122.5 mm (Width) x 92.5 mm (Depth)
Mounting DIN rail
Power
Nominal current 16 to 50 A
Nominal voltage 100V to 500V (+10%/–15%). Refer to ‘Codification’
for more details
Frequency 47Hz to 63Hz
Rated short-circuit
conditional current
100KA (coordination type 1) (see 3.2)
Type of loads
AC51
AC-56a
Pure resistive
Transformer Primary
(Phase Angle product only with current limit)
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EFit User Manual
Control
Supply of electronics Self powered product: 100Vac to 500Vac
Auxiliary supply: 115Vac or 230Vac.
Auxiliary supply must be in phase with the line. The
control circuit shall be protected by a ATM2 fuse rated
600Vac/dc, 2A, 100kA
Control setpoint Either analogue (analogue input or potentiometer) or
logic
• Analogue input
signal
DC voltage : 0-5V, 0-10V, Input impedance 100k ohms
DC current : 4-20mA
Burden resistor 250 ohms
• Potentiometer A ‘5V user’ voltage is available between terminals 5
and 7 to be used with an external potentiometer of
10Kohm. One potentiometer per unit should be used
• Logic Contact for On/Off logic operation
Control
Performance
Linearity Better than ±2% of the full range
Stability Better than ± 2% of the full range with constant
resistance
Automatic compensation for supply fluctuation
(variation: between -10% and +10% of the nominal
voltage).
Firing modes Burst
- Burst variable (16 periods)
- Single cycle
- Advanced single cycle
Phase angle
- With or Without current limit
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EFit User Manual
3. Codification
Ordering Code
Model /Current/Voltage/Input /Firing /Manual language/Supply
Current limit /Fuse/00
Firing mode
Burst Variable FC
Single cycle FC1
Advanced single
cycle
SCA
Phase angle PA
Language
English ENG
French FRA
German GER
Supply
Self-powered SELF
Aux power supply
115 volts
115V
Aux power supply
230 volts
230V
Current limit
Without current limit XX
With current limit
(only with PA)
CL
Fuse
Without fuse (1) NOFUSE
With fuse without
microswitch
FUSE
With fuse with
microswitch
MSFUSE
Model
EFit EFIT
Nominal Current
16 amps 16A
25 amps 25A
40 amps 40A
50 amps 50A
Nominal Voltage
100 volts 100V
115 volts 115V
200 volts 200V
230 volts 230V
240 volts 240V
277 volts 277V
380 volts 380V
400 volts 400V
415 volts 415V
440 volts 440V
480 volts 480V
500 volts 500V
Input
0-5Vdc 0V5
4-20mA 4mA20
0-10V 0V10
(1) See 3.2
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EFit User Manual
3.2 Fuses
According to the CE and UL certifications, high speed fuses are
necessary for the protection of the EFit power controller against
short circuit.
The power circuit shall be protected by a supplemental fuse
as described in the table below. These should be used in
conjunction with suitable fuse holders and contact kits (if
required) as shown in this table.
With suplemental fuse (high speed fuse), EFit is suitable for
use on a circuit capable of delivering not more than 100kA rms
symmetrical amperes, 500 Volts Maximum. (coordination Type 1)
Warning : if opening of the branch circuit protective or the
supplemental fuse (high speed fuse) EFit shall be examined and
replaced if damaged.
Fuse body
size (mm)
Fuse holder
part no.
Fuse part no. Contact kit
part no.
16A w/o MS 10x38 CP018525 CS031505U002
with MS 14x51 CP171480 CS031506U002 CP177220
25A w/o MS 10x38 CP018525 CS031505U002
with MS 14x51 CP171480 CS031506U002 CP177220
40A w/o MS 14x51 CP171480 CS031509U002
with MS 14x51 CP171480 CS031510U002 CP177220
50A w/o MS 22x58 CP173083 CS031511U002
with MS 22x58 CP173083 CS031512U002 CP177221
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EFit User Manual
4. Mechanical installation
4.1 Dimensional details
Model Height (mm) Width (mm) Depht (mm)
16A 115 52,5 92,5
25A 115 70 92,5
40A 115 105 92,5
50A 115 122,5 92,5
Minimum spacing (width) between two EFit units:
- 10mm up to 45°C (ambient temperature)
Safety earth: For EMC compliance ensure that the DIN rail is
electrically bonded to the reference ground (panel or bulkhead)
FRONT VIEW PROFIL VIEW
Safety earth
connection
Depth (D)
Width (W)
Height (H)
The earth connection
must be made using
a listed ring type crimp
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EFit User Manual
4.2 Front fascia
Current limit
potentiometer
(available as an option
only in Phase Angle)
Green led
thyristor firing
indicator
Plug-in control
connector
(input)
FRONT FASCIA
Safety earth (M5 nut).
The earth connection
must be made using
a Listed ring type crimp.
Main terminals
1/L1 3/L2
Load terminals
2/T1 4/T2
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EFit User Manual
5. Electrical Installation
5.1 Terminals and connectors
Tables below, give details of wire sizes and tightening torques for
both power supply and signal wiring connection. Where a range
of wire sizes is given it is up to the user to select the correct cross
sectional area required for the application. The safety earth cable
should be, as a minimum, of the same cross sectional area as the
cables used for the load (i.e. the cables terminated at the 1/L1,
3/L2, 2/T1 and 4/T2 terminals. “The earth connection must be
made using a listed ring type crimp.“
POWER TERMINALS
Terminal Function Terminal
type
Cable Stripping Tightening
torque
Screw
driver
details
1/L1 Mains - Controlled phase
Cage
1.5mm2to
16mm2
(14 to 6 AWG)
rated 90°C
16mm
2.3N.m
(20.4 Lb.In) 1x5,5mm
3/L2 Mains - Direct phase/Neutral
2/T1 Load - Controlled phase
4/T2 Load - Direct phase/Neutral
Safety earth
M5
screw
Same
section
as power
minimum
rated 90°C
The earth
connection
must be
made using
a listed ring
type crimp
CONTROL BOARD CONNECTORS
Terminal Function Connector
type
Cable Stripping Tightening
torque
Screw
driver
details
5 0V of control signal
Plug-in
0.5 to
2.5mm2
(24 to 12
AWG) rated
75°C
7mm 0.6N.m
(5.31 Lb.In)
0,6
x3,5mm
6 ‘+’ of control signal
7 User 5V
8 & 10 Auxiliary power supply
(option)
Plug-in
0.5 to
1.5mm2
(24 to 14
AWG) rated
75°C
7mm 0.25N.m
(2.25 Lb.In)
0,4
x2,5mm
9 Not used
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EFit User Manual
5.2 Connectors
5.2.1 View on lower face
5.2.2 View on upper face
Control
input
Auxiliary
power
supply
5
6
7
8
10
2/T1 4/T2
Load
terminals
1/L1 3/L2
Mains
terminals
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EFit User Manual
6. Control wiring
6.1 Input signal wiring
6.1.1 Remote Control
Example with an EFit driven by an analogue signal coming from
the temperature controller
0V
N
5 6 7
Ph
+
+
Eurotherm
Temperature Controller
1A fuse
Line protection
circuit breaker
(installed by user)
Neutral
Controlled phase
Thyristor
protection fuse
Analogue
output
Thermocouple
input Current limit
potentiometer
(option)
Green led
thyristor firing
indicator
Safety
earth
1/L1 3/L2
2/T1 4/T2
Analogue
input
LOAD
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