background image

OPERATING IN KEYPAD MODE

Set P-12 = 1(this allows the Optidrive to be 

controlled from the keypad):  

ƒ

 

Enable the drive by closing digital input 

1. The display will show StoP. 

ƒ

 

Press the START key. The display shows  

H  0.0. 

ƒ

 

Press    to increase speed 

ƒ

 

The drive will run forward, increasing 

speed until   is released. 

CAUTION: 

the 

rate of acceleration is controlled by the 
setting of P-03, check this before starting.
   

ƒ

 

Either Press 

to decrease speed 

ƒ

 

The drive will decrease speed until 

τ

 is 

released. The rate of deceleration is 
limited by the setting in P-04 

ƒ

 

Or Press the STOP key. The drive will 

decelerate to rest at the rate set in P-04. 

ƒ

 

The display will finally show StoP at 

which point the drive is disabled 

ƒ

 

To preset a target speed prior to enable 

press the stop key whilst the drive is 
stopped. The display will show the target 
speed, use the   and  

 to adjust as 

required then press the Stop key to return 
the display to StoP. Pressing the START 
key will start the drive accelerating to the 
target speed. 

With P-12 set to 2:  

ƒ

 

Press the START key. The display 

changes to H  0.0. 

ƒ

 

Press   to increase speed 

ƒ

 

The drive will run forward, increasing 

speed until   is released. Acceleration is 
limited by the setting in P-03. The 
maximum speed is the speed set in P-01. 

ƒ

 

Press the START key again. The motor 

will reverse its direction of rotation. 

 
The operation of the keypad can be duplicated 
using remote pushbuttons connected to the 
control terminals, see Application Note AN21. 
In this mode, if P30 is set to Auto-0..4, then 
the drive will run as soon as the drive enable 
is applied (terminal 1 & 2 is closed). 
 

TO SAVE CHANGES

 to Parameter settings, 

switch the power supply off and wait for the 
drive to power down (screen blank) before 
switching on. 
NOTE that this assumes P-38 = 0 (default). If 
P-38 = 1, changes are not saved.

 

STANDARDS CONFORMITY 

The Optidrive  conforms with the following standards 
1) CE marked for low voltage directive  
2) UL508C Power conversion equipment 
3) IEC 664-1  Insulation coordination for equipment within low voltage systems 

4) EN61800-3 Adjustable Speed electrical power drive systems – Part 3 (EMC) 
5) EN 61000-6 / -2, -3, -4  Generic Immunity / Emissions standards (EMC)  

 

Earth

L3

L2

Isolator

Contactor,

mcb or
Fuses

Optional

Filter 

*

Screened motor
cable connects to
motor frame earth

L1

Optional
Braking
Resistor

U V W

Optidrive size 2

Help card

IR lens

Cable
management
tie-wrap

L1 L2 L3

U  V  W  +  BR

Each drive star
connected to system
earth point

To

other

drives

 

OPERATION –  GETTING STARTED 

MOTOR TERMINAL BOX CONNECTIONS 

Motors are connected in either STAR or DELTA. The motor 
rating plate will indicate the voltage rating for the method 
of connection, ensure that this matches the Optidrive  
operating voltage. 

 

 

CONTROL TERMINAL BLOCK - 

Default Status

 

 

WARNING ! 

ƒ

 

The STOP function does not remove potentially lethal high voltages. ISOLATE the drive and 

wait 10 minutes before starting any work on it 

ƒ

 

Parameter P-01 can be set to operate the motor at up to 60,000 rpm, hence use this 

parameter with care 

ƒ

 

If it is desired to operate the drive at any frequency/speed above the rated speed (P-09/ P-10) 

of the motor, consult the manufacturers of the motor and the driven machine about suitability 
for over-speed operation 

ƒ

 

The fan (if fitted) to the heatsink of the Optidrive starts automatically when the heatsink 

temperature reaches approximately 40ºC. When the heatsink is at room temperature the fan 
will be stopped. 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 

 

MECHANICAL INSTALLATION 

Optidrives can be installed side-by-side with their heatsink 
flanges touching. This gives adequate ventilation space between 
them. If the Optidrive is to be installed above another drive or 
any other heat-producing device, the minimum vertical spacing 
is 100mm. The enclosure should either be force-ventilated or 
large enough to allow natural cooling (allow 0.1 m

3

 per kW of 

drive rating).  

 

GROUNDING (EARTHING) 

The ground terminal of each Optidrive should be individually 
connected DIRECTLY to the site earth (ground) busbar (through 
the filter if installed) as shown. Optidrive ground connections 
should not loop from one drive to another, or to, or from any 
other equipment. Ground loop impedance must conform to local 
industrial safety regulations. To meet UL regulations, UL 
approved ring crimp terminals should be used for all earth wiring 
connections. 

EASY START-UP 

When delivered, the Optidrive is in the default state, 
meaning that it is set to operate in terminal mode and 
all parameters (P-xx) have the default values as 
shown overleaf.  

ƒ

 

Connect a control switch between the control 

terminals 1 and 2.  

ƒ

 

Connect a potentiometer (500 

 min to 10 k

 max) 

between terminals 5 and 7, and wiper to terminal 6. 

ƒ

 

Set the control switch between pins 1 and 2 open 

so that the drive is ‘disabled’.  

ƒ

 

With the potentiometer set to zero, switch on the 

supply to the drive. The display will show StoP. 

ƒ

 

Close the control switch, terminals 1-2. The drive is 

now ‘enabled’ and the output frequency/speed are 
controlled by the potentiometer. The display shows 
zero speed in Hz (H  0.0) with the potentiometer 
turned to minimum. 

ƒ

 

Turn the potentiometer to maximum. The motor will 

accelerate to 50Hz (the default value of P-01) under 
the control of the accelerating ramp time P-03.  The 
display shows  H  50.0 (50Hz) at max speed.  

ƒ

 

To display motor current (A), briefly press the 

Navigate key  

ƒ

 

Press 

 again to return to speed display. 

ƒ

 

To stop the motor, either turn the potentiometer back 

to zero or disable the drive by opening the control 
switch (terminals 1-2).  

 

If the enable/disable switch is opened the drive will 

decelerate to stop at which time the display will show 

StoP. If the potentiometer is turned to zero and the 

enable/disable is closed the display will show 0.0Hz, if 

left like this for 20 seconds the drive will go into 

standby mode, display shows Stndby, waiting for a 

speed reference. 

 

User Guide 

All rights reserved. No part of this User Guide may be reproduced 
or transmitted in any form or by any means, electrical or 
mechanical including photocopying, recording or by any 
information storage or retrieval system without permission in 
writing from the publisher. 

Copyright Invertek Drives Ltd 

©

 

2005 

The manufacturer accepts no liability for any consequences 
resulting from inappropriate, negligent or incorrect installation, or 
adjustment of the optional operating parameters of the drive or 
from mismatching of the drive to the motor. 
The contents of this User Guide are believed to be correct at the 
time of printing. In the interests of a commitment to a policy of 
continuous improvement, the manufacturer reserves the right to 
change the specification of the product or its performance or the 
contents of the User Guide without notice.

 

SAFETY 

This variable speed drive product (Optidrive) is intended for 
professional incorporation into complete equipment or systems. If 
installed incorrectly it may present a safety hazard. The Optidrive 
uses high voltages and currents, carries a high level of stored 
electrical energy, and is used to control mechanical plant that may 
cause injury. Close attention is required to system design and 
electrical installation to avoid hazards in either normal operation 
or in the event of equipment malfunction.  
System design, installation, commissioning and maintenance 
must be carried out only by personnel who have the necessary 
training and experience. They must read carefully this safety 
information and the instructions in this Guide and follow all 
information regarding transport, storage, installation and use of 
the Optidrive, including the specified environmental limitations. 
Please read the 

IMPORTANT SAFETY INFORMATION

 below, and 

all 

Warning

 and 

Caution

 boxes elsewhere. 

SAFETY NOTICES

 

WARNING

 is given where there is a hazard that could lead to injury 

or death of personnel 

CAUTION

 is given where there is a hazard that could lead to 

damage to equipment 

CAUTION

ƒ

 

Carefully inspect the Optidrive before 

installation to ensure it is undamaged 

ƒ

 

Store the Optidrive in its box until 

required. Storage should be clean and 
dry Temp. Range –40

o

C to +60

o

ƒ

 

Install the Optidrive on a flat, vertical, 

flame-resistant vibration-free mounting 
within a suitable enclosure, according to 
EN60529 if specific Ingress Protection 
ratings are required. Installation required 
in a pollution degree 2 environment. 

ƒ

 

Flammable material should not be 

placed close to the drive

 

ƒ

 

The entry of conductive or flammable 

foreign bodies should be prevented 

ƒ

 

Max. ambient temperature 50

o

C, min. –

5

o

C. Refer to table on reverse side. 

ƒ

 

Relative humidity must be less than 95% 

(non-condensing).

 

ƒ

 

The Optidrive is suitable for use on a 

circuit capable of delivering not more 
than 5KA (50Hp) / 10KA (51-200HP) 
symmetrical amperes, 480V maximum

.

 

 

WARNING ! 

ƒ

 

Optidrives should be installed only by qualified electrical persons and in accordance with 

local and national regulations and codes of practice. The Optidrive has an Ingress Protection 
rating of IP20. For higher IP ratings, use a suitable enclosure. 

ƒ

 

Electric shock hazard!

 Disconnect and ISOLATE the Optidrive before attempting any work on 

it. High voltages are present at the terminals and within the drive for up to 10 minutes after 
disconnection of the electrical supply 

ƒ

 

Where supply to the drive is through a plug and socket connector, do not disconnect until 10 

minutes have elapsed after turning off the supply 

ƒ

 

Ensure correct earthing connections 

ƒ

 

The earth cable must be sufficient to carry the maximum supply fault current which normally 

will be limited by the fuses or MCB 

SAFETY NOTICES 

It is the responsibility of the installer to 
ensure that the equipment or system into 
which the product is incorporated complies 
with the EMC legislation of the country of 
use. Within the European Union, equipment 
into which this product is incorporated must 
comply with 89/336/EEC,Electromagnetic 
Compatibility

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

WARRANTY 

All Invertek Drives Ltd (IDL) products carry a 
2-year warranty, valid from the date of 
manufacture. 
Complete Warranty Terms and Conditions 
are available upon request from your IDL 
Authorised Distributor. 

WARNING! 

The level of integrity offered by the 
Optidrive control functions – for example 
stop/start, forward/reverse and maximum 
speed, is not sufficient for use in safety-
critical applications without independent 
channels of protection. All applications 
where malfunction could cause injury or 
loss of life must

 

be subject to a risk 

assessment and further protection 
provided where needed. Within the 
European Union, all machinery in which 
this product is used must comply with 
Directive 89/392/EEC, Safety of Machinery. 
In particular, the electrical equipment 
should comply with EN60204-1. 

OPTIDRIVE   

 

USER GUIDE 

Invertek Drives Ltd                                       Tel:   +44 (0) 1938 556868       
Offa’s Dyke Business Park                       Fax:  +44 (0) 1938 556869 
Welshpool 
Powys                                                                  email: 

[email protected]

 

SY21 8JF 

                                               Internet:

www.invertek.co.uk

 

UK                                                                       Iss1.01 

                                                                            

 

ELECTRICAL INSTALLATION

Connect drive according to diagram (above), ensuring that 
motor terminal box connections are correct (see diagram, 
below). 
Refer to the 

ELECTRICAL DATA

 overleaf for the sizes of 

cabling and wiring.  
It is recommended that the power cabling should be 3-core or 
4-core PVC-insulated screened cable, laid in accordance with 
local industrial regulations and codes of practice. 

GENERAL TECHNICAL DATA

 

Supply frequency 48 to 62 Hz. 

 

Max. permissible 3-phase supply 

imbalance 3%. 

 

Max. ambient temperature 50 

o

C. 

 

Max. altitude 2000 m. 

 

Derate above 1000 m, 1% / 100 m. 

 

Derate output current 5%/

 o

C above 

max. ambient temp up to 55

o

C  

 

I

 

x t protection above 100% output 

current. 

 

150% overload protection for 60 sec. 

 

175% overload allowable for 2 sec. 

 

Storage temperature -40 to +60 

o

C

CAUTION 

ƒ

 

Ensure that the supply voltage, frequency and no. of phases (1 or 3 phase) correspond to 

the rating of the Optidrive as delivered. 

ƒ

 

An isolator should be installed between the power supply and the drive. 

ƒ

 

Never connect the mains power supply to the Output terminals U,V,W. 

ƒ

 

Protect the drive by using slow-blowing HRC fuses or MCB located in the mains supply of 

the drive 

ƒ

 

Do not install any type of automatic switchgear between the drive and the motor 

ƒ

 

Wherever control cabling is close to power cabling, maintain a minimum separation of 100 

mm and arrange crossings at 90

o

 

ƒ

 

Ensure that screening or armouring of power cables is effected in accordance with the 

connections diagram below 

ƒ

 

Ensure that all terminals are tightened to the appropriate torque (see table) 

 
 
 

L

         

ENCLOSURE 

HOLE

POSITIONS 

FOR 

MOUNTING

 

OPERATION – USING THE KEYPAD 

MANAGING THE KEYPAD 

When the drive is delivered from the factory, only the Standard 
Parameter Set (see overleaf) is accessible. 

To access the Standard Parameter Set

, press the Navigate key 

 

for 

>1 sec. 

 

Scroll through P-01 to P-14 (and roll over to P-01) by pressing    

or 

 

 

To display the 

parameter value

, press 

 

 

To 

edit

 the parameter value, press   or 

 

 

To 

return

 to the parameter number, press 

 

 

To 

store 

a value and / or

 exit

 from edit mode, press 

 for >1 sec 

or press no button for >20 sec. 

To 

access the Extended Parameter Set

, set P-14 = 101 and press 

 

 
 
 
 
 
 
 
 
 

NOTE

 To restrict unauthorised access, make P-37 = any value from 0 

to 9999. 

 

When in the Extended Parameter Set (except P-00), the display 
will revert to normal if no button is pressed for >20 sec.

Refer to the 
Digital Inputs 
table overleaf 
for details of 
the digital input 
functions 1 to 3 
 
If screened 
cabling is used  
for the control 
wiring, connect 
the cable 
screen to 0V of 
drive, terminals 
1,7 or 9. 

Υ

 (STAR) connection

 

 (DELTA) connection

 

U V W Wires from Optidrive 

IMPORTANT SAFETY INFORMATION

Safety of machinery, and safety-critical applications 

Optidrive hardware and software are designed and tested to a high standard and failures are 
unlikely.  

Electromagnetic Compatibility (EMC) 

 

Optidrive is designed to high standards of EMC. EMC data is provided in a separate EMC 
Data Sheet, available on request. Under extreme conditions, the product might cause or 
suffer disturbance due to electromagnetic interaction with other equipment. It is the 
responsibility of the installer to ensure that the equipment or system into which the product 
is incorporated complies with the EMC legislation of the country of use. Within the European 
Union, equipment into which this product is incorporated must comply with 89/336/EEC, 
Electromagnetic Compatibility. 
When installed as recommended in this User Guide, the radiated emissions levels of all 
Optidrives are less than those defined in the Generic radiated emissions standard EN61000-
6-4. When correctly fitted with an Optifilter (Mains filter), the conducted emission levels are 
less than those defined in the Generic radiated emissions standard EN61000-6-3 (class B) 
for screened cable lengths of < 5m and with EN61000-6-4 (class A) for screened cable 
lengths of < 25m. 

SIMPLE PARAMETER ADJUSTMENTS

The factory-set default parameter values may give satisfactory 
performance, however certain adjustments may be beneficial. 

Maximum and Minimum

 

Speeds

 P-01 & P-02 

Set P-01 to the maximum speed and P-02 to the minimum speed for 
your application. These limits are mirrored for negative speeds. If a 
non-zero minimum speed is set in P-02, the motor will ramp (P-03) to 
this minimum speed as soon as the drive is enabled.  

Acceleration and Deceleration

 P-03 & P04 

Ramps which are too short will cause the drive to deliver currents in 
excess of full load current and may result in it tripping out or the 
motor stalling 

Stop Mode

 P-05 

Select method of stopping required when drive is disabled. Ramp to 
stop (P-05 = 0) decelerates the motor at the rate set by deceleration 
ramp time P-04. Freewheel/ Coast to stop (P-05=1) disables the drive 
output immediately, allowing the motor to decelerate naturally due 
to friction or under the control of a mechanical brake 

Torque/Speed Characteristic

 P-06 

Certain loads such as fans and centrifugal pumps need very little 
torque at low speed. Set P-06=1 to reduce power loss at low speeds 
for this load type.  

Rated Current, Rated Frequency and Rated Speed

 P-08, P-09, P-10. 

Parameters P-08 and P-09 should to be set to correspond with the 
rated current and frequency shown on the motor rating plate.  
Parameter P-10 is optional. If this parameter is set to zero (default 
state), speed will be displayed in Hz; if speed indication is required 
in rpm, enter the motor rated speed (speed at full load) from the 
motor rating plate.  

Voltage Boost

 P-11 

Any load which is ‘sticky’ to start will benefit from a voltage boost 
on starting. P-11 permits a boost of up to 25% of full motor voltage 
to be applied. 
NOTE: Use of this parameter increases motor heating at low speeds 

Terminal or Keypad Control

 P-12 

Terminal control (P-12=0) is used when the drive needs to be 
controlled from some remote point,  such as a control panel 
interface or machine system. 
Keypad control (P12=1 or 2) is used for local, manual control and 
commissioning 

Extended Parameter Set

 P15 to P-40 and P-00 

The Extended Parameter Set is intended for use by specialist drives 

engineers and technicians and will not generally be required for 

simple applications. 

 
 

PARAMETER ZERO 

 

Provides a read only window into the motor control software 

allowing  

   key internal values to be viewed. This is useful            for following 
signals  
   through the drive control system when troubleshooting. 

 

Access, scroll, change and exit are as for any other parameter.  

   The selected variable is at the left hand side of the display. 

 

There are 9 different windows listed below: 

1 Unscaled analog input (%)        
2 Speed ref. via scaled analog input (Hz)   
3 Pre-ramp speed ref. (Hz)    
4 Post-ramp speed ref. (Hz)    
5 Not used     
6 Stator field frequency (Hz)          
7 Applied motor voltage (V) 
8 DC bus voltage (V)    

     9 Internal thermistor (NTC) value             

 

TO RESTORE ALL 
DEFAULT VALUES

stop the drive and 
when display shows 
StoP, press and 
hold the  , 

 and 

STOP keys 
simultaneously for 1 
second. The display 
will show P-dEF. 
Access code P-37 
will revert to 101 but 
the hours-run meter 
P-39 is not affected. 

Press STOP to 
resume normal 
operation. 

 

NAVIGATE

 

DISPLAY

 

 

 

START

 

 

 

RESET/ STOP

 

UP

 

DOWN

 

H   5 0 . 0

 

 

 

0V

Di

gi

ta

l I

/P

 1

Di

gi

ta

l I

/P

 2

Di

gi

ta

l I

/P

 3

+1

0

V

 O/P

A

nal

og I

/P

0V

A

nal

og O

/P

0V

Rel

a

y c

ontac

t

R

e

la

y c

o

mmo

n

Cl

os

ed: E

n

abl

e; O

p

en:

 D

is

abl

e

500 

Ω 

min.

0-10V

analog

O/P

Relay ratings

30V dc, 5A

240V ac, 5A

0-

1

0

V

4-20m

A

1

2

3

4

5

6

7

8

9 10 11

A

nal

og 

I/

P

 -

 Cl

os

ed: A

O

p

en

 :

V

C

los

ed: P

re

s

e

1; O

p

en: 

A

nal

og 

I/

P

* If fitted, a filter should be 
physically close to the Drive. 
For maximum effectiveness, 
the metal case of the filter 
and the heat sink of the drive 
should be electrically 
connected, ie screw both to a 
metal backplate and ensure 
metal-to-metal contact

Size 6 Input Choke 
Connection 

– When 

connecting the choke 
observe the following :- 
i) The order of the input 
phases (L1,L2,L3) is not 
important. 
ii) The choke can be 
mounted to suit the wiring, 
either above the drive or 
anywhere in the panel. 
Either set of terminals can 
be used for the Input or 
Output.  
iii) The choke should NOT 
be connected directly to the 
drive to stop any 
mechanical stress on the 
terminals of the drive. 

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