KEBCO COMBIVERT F4-S Instruction Manual

COMBIVERT

INSTRUCTION MANUAL SIMPLE CONTROL

Important Note: The user should read this manual

completely prior to operating the inverter

POWER TRANSMISSION

01/00

This instruction manual must be made available to all users. Before
working with this unit the user must be familiar with it. This is especially
true for the attention, safety and warning guides. The meaning of the
icons used in this manual are:

Danger Attention, Information
Warning observe at Help
Caution all costs Tip

© KEBCO 0S.F4.0EB-K120 01/00

Table of Contents

Instruction Manual

1. Installation and connection....................................... 2

1.1 Definition of terminal strip X1 ........................................2

1.2 Connection of the control signals ................................................2

1.2.1 Digital inputs ....................................................................2

1.2.2 Analog inputs ...................................................................2

1.2.3 Outputs ................................................................3

2. Operation of the inverter.........................................3

2.1 Digital operator ........................................................................3

2.1.1 Interface operator ................................................................3

2.1.2 Keyboard .................................................................4

2.2 Parameter summary .................................................5

2.3 Password input ......................................................5

2.4 Operating display ..................................................6

2.5 Basic adjustment of the drive ....................................7

2.6 Special adjustments ..................................................9

2.7 The "Drive Mode" ....................................................14

2.7.1 Start / Stop "Drive Mode" ....................................14

2.7.2 Changing direction of rotation ..........................14

2.7.3 Speed setting .........................................................14

2.7.4 Leaving "Drive Mode" .............................................14

POWER TRANSMISSION

F4-S

Table of Contents

3. Error diagnosis ......................................................15

4. Glossary ...................................................17

5. Index .....................................................................18

6. Quick reference ..............................................19

7. Passwords ...........................................................20

1F4-S Instuction Manual

Installation and Connection

GND

98

1. Installation and connection

123456789101112

Size 05...15

13 14

1.1 Definition of
terminal strip X1

PIN Function Description
1 NO contact Relay output

2 NC contact Function see parameter CP.22
3 Switch contact ( factory setting: fault indication)

4 Fixed frequency 1 A signal at 4 and 5 give fixed frequency 3,
5 Fixed frequency 2 no signal and the speed reference becomes the analog input

6 Digital common Common terminal for digital inputs and outputs
7 +10V Supply voltage for speed reference potentiometer (max. 4mA)

8 Speed reference 0...10VDC for analog speed setting
9 Analog common Common for analog inputs and outputs

10 Analog output Analog output of actual frequency 0...10VDC = 0...102.4Hz
11 15V Voltage supply for digital inputs and outputs (max. 100mA)

12 Reverse Rotation direction; forward has priority
13 Forward

14 Control release Output voltage enabled; drive faults reset when signal removed

1.2 Connection of the
control signals

In order to prevent a malfunction caused by interference voltages on
the control inputs, the following steps should be observed:

- Use shielded/twisted cables

- Connect shields to earth ground only at the inverter

- Lay control and power wires separately (about 8 inches apart)

1.2.1 Digital input

EMC
Internal voltage supply

5 141312114

- Control and power wires should cross at a right angle
External voltage supply

GND

5 1413124

6

+

13...30VDC

1.2.2 Analog input

Analog speed reference

using potentiometer

987

GND

Analog speed

setting using 0...10V

GND

3...10 kW / 0.5 W

+

Ri = 4 kW

0...10 VDC

-

PLC

2 F4-S Instuction Manual

Installation and Connection

1.2.3Outputs

POWER TRANSMISSION

2. Operation of the
inverter

2.1 Digital operator

Part Number 00.F4.010-2009

321

109

GND

Analog output:

+

max. 5mA

0...10VDC at R

0...1mADC at R

Load

Load

56 kΩ

≤ 5 kΩ

When running the inverter without an operator, it runs with the last
stored values or factory setting. The red LED remains on constantly
when the unit is connected to supply voltage and functioning nor­mally. The LED will begin to flash in the event of an error condition.
To facilitate parameter adjustment and inverter monitoring, a keypad/
display operator is required. To prevent malfunctions, the inverter
must be brought into

nOP

status before connecting/disconnecting
the operator (remove the signal at the control release terminal 14).
The operator is available in different versions:

5-digit LED Display with double function keypad

Interface control
Transmit LED flickers
during active serial
communication

Operating-/Error
display
Normal - "LED on"
Error - "LED blinks"

2.1.1 Interface operator

Part Number 00.F4.010-1009

12345

6789

The Interface operator contains an additional isolated RS232/RS485­communication port for serial communication to and from the inverter.

Ground-Connection

RS232/RS485

PIN RS485 Signal Meaning

1 – – reserved
2 – TxD Transmit signal/RS232
3 – RxD Receive signal/RS232
4 A' RxD-A Receive signal A/RS485
5 B' RxD-B Receive signal B/RS485
6 – VP Voltage supply-Plus +5V (I

= 10 mA)

max

7 C/C' 0V Data reference potential
8 A TxD-A Transmit signal A/RS485
9 B TxD-B Transmit signal B/RS485

For information about other operator versions contact KEBCO!

3F4-S Instuction Manual

Operation of the Unit

2.1.2 Keypad

When switching on the inverter, the value of parameter CP.1 appears. (See Drive
mode to switch the keyboard function)

The function key (FUNC) changes
between the parameter value and

FUNC.

SPEED

parameter number.

With UP ( ) and DOWN ( ) the
value of the parameter number is
increased / decreased .

START

STOP

STOP

START

Generally, when a value is changed, parameter values are immediately
accepted and stored nonvolatile. With some parameters it is necessary to press
ENTER after changing the value in order for the new value to be stored
nonvolatile. When this type of parameter is changed, a decimal point appears
behind the last digit.

ENTER

F/R

If a drive fault occurs during operation, the current display changes to the fault
message, E.XXX. The faultmessage in the display is reset by pressing ENTER.

error

ENTER

F/R

Pressing ENTER only resets the error message in the display. In order
to reset the fault itself, the cause must be identified and removed and
a reset signal given on terminal 14 or a power-on reset (cycle supply
voltage off and then on) must occur. In the Inverter status display (CP.

2) the fault is still displayed until the inverter has been reset through
the steps listed above.

4 F4-S Instuction Manual

Operation of the Unit

2.2 Parameter summary

POWER TRANSMISSION

Display Parameter Adjust. range Resolution

Factory setting

CP. 0 Password input 0...9999 1 ­CP. 1 Actual frequency display read only 0.1 Hz ­CP. 2 Inverter status display read only - ­CP. 3 Actual load read only 1 % ­CP. 4 Peak load read only 1 % ­CP. 5 Rated frequency 0...409.58 Hz 0.0125 Hz 50.0 Hz
CP. 6 Boost 0...25.5 % 0.1 % 2 %
CP. 7 Acceleration time 0.01...300 s 0.01 s 10 s
CP. 8 Deceleration time 0.01...300 s 0.01 s 10 s
CP. 9 Minimum frequency 0...409.58 Hz 0.0125 Hz 0 Hz
CP.10 Maximum frequency 0...409.58 Hz 0.0125 Hz 70 Hz
CP.11 Fixed frequency 1 0...409.58 Hz 0.0125 Hz 5 Hz
CP.12 Fixed frequency 2 0...409.58 Hz 0.0125 Hz 50 Hz
CP.13 Fixed frequency 3 0...409.58 Hz 0.0125 Hz 70 Hz
CP.14 Max. ramp current 10...200 % 1 % 140 %
CP.15 Max. constant current 10...200 % 1 % 200 %
CP.16 Speed search 0...7 1 0
CP.17 Voltage stabilization 150...649 V,oFF 1 V oFF
CP.18 Slip compensation -2.50...2.50 0.01 0=oFF
CP.19 Autoboost -2.50...2.50 0.01 0=oFF
CP.20 DC-braking 0...9 1 0
CP.21 Braking time 0...100 s 0.01 s 10 s
CP.22 Relay output 0...25 1 2
CP.23 Frequency level 0...409.58 Hz 0.0125 Hz 4 Hz

2.3 Password input

From the factory, the frequency inverter is supplied without
password protection, this means that all parameters can be
adjusted. After programming, the unit can be protected
against unauthorized access thus preventing the values
from being changed.

Locking the
CP-Parameters
(Read only)

See the last page for the

actual password values.

Releasing the
CP-Parameters

FUNC.
SPEED

START

ENTER

F/R

FUNC.
SPEED

FUNC.

SPEED

START

ENTER

F/R

FUNC.

SPEED

5F4-S Instuction Manual

Operation of the Unit

2.4 Operating display

Actual frequency display

Inverter status display

The 4 parameters below can be used to monitor the frequency inverter's
operation.

Display of the actual output frequency with a resolution of 0.0125 Hz. The
rotation of the inverter is indicated by the sign.

Output frequency 18.3 Hz, rotation forward

Examples:

Output frequency 18.3 Hz, rotation reverse

The status display shows the actual working conditions of the inverter.
Possible displays and their meanings are:

" no Operation " control release (terminal 14) not con­nected, modulation switched off, output voltage = 0 V,
drive is disabled.

" Low Speed " no rotation signal F or R ( terminal 12 or 13),
modulation switched off, output voltage = 0 V.

" Forward Acceleration " drive accelerates with a forward
direction of rotation.

" Forward Deceleration " drive decelerates with a forward
direction of rotation.

Actual load

Peak load

" Reverse Acceleration " drives accelerates with a re­verse direction of rotation.

" Reverse Deceleration " drive decelerates with a reverse
direction of rotation.

" Forward Constant " drive runs with a constant speed
and a forward direction of rotation.

" Reverse Constant " drive runs with constant speed and
a reverse direction of rotation.

Other status messages are described with the parameters which are related
to them.

Display of the actual inverter loading in percent. 100% load is equal to the
inverter rated current. Only positive values are displayed, meaning there
is no differentiation between motor and regenerative operation.

This display makes it possible to recognize instantaneous load levels by
storing the highest value that occurred. The display occurs in percent
(100% = inverter rated current).

With the UP or DOWN key the peak value can be reset. Switching
off the unit deletes the peak value.

6 F4-S Instuction Manual

Operation of the
Unit

2.5 Basic adjustment
of the drive

POWER TRANSMISSION

The following parameters determine the fundamental operating data of
the drive. They should be checked and/or adjusted for the application.

Rated frequency

Boost

The inverter produces maximum voltage to the motor at the frequency set
in this parameter. This parameter is typically adjusted for the motor rated
frequency. Note: Motors can overheat when the rated frequency is
incorrectly adjusted!

V

U

A

Adjustment range: 0...409.58 Hz
Resolution: 0.0125 Hz

Out

100%

Factory setting: 50.0 Hz

Customer adjustment:_______ Hz

CP. 5

f

In the lower speed range losses in the motor become greater. This
parameter can be used to boost the voltage in order to over come these
losses. With proper adjustment, the torque output of the motor will
remain constant even at the lowest speeds.

U

A

V

Out

Adjustment range: 0...25.5 %
Resolution: 0.1 %
Factory setting: 2.0 %
Customer adjustment: _______ %

CP. 6

CP. 5

f

Adjustment: - Using CP.3, determine the load level during no-load

operation at the rated frequency

- Run the motor at 10 Hz and adjust the boost, so that the
same load level occurs as at the rated frequency.

- When the motor runs at low speeds continuously with too
much boost, overheating of the motor can result.

Acceleration time

This parameter determines the time required to accelerate from 0 to
100 Hz. The actual acceleration time is proportional to the change in
frequency. See below.

actual acceleration time =

Adjustment range: 0.01...300 s

change in frequency x CP.7

100 Hz

100 Hz

f

Resolution: 0.01 s
Factory setting: 10 s
Customer adjustment: _______ s

CP. 7

t

Example: CP. 7 = 10 s ; the drive accelerates from 10 Hz to 60 Hz

change in frequency = 60 Hz - 10 Hz = 50 Hz
actual acceleration time = (50 Hz / 100 Hz) x 10s = 5 s

7F4-S Instuction Manual

Operation of the

f

U

REF

CP. 9

CP.10

10 V0 V

Unit

Deceleration time

This parameter determines the time required to decelerate from 100 to 0 Hz.
The actual deceleration time is proportional to the frequency change.

Minimum frequency

actual deceleration time =

Adjustment range: 0.01...300 s
Resolution: 0.01 s

change in frequency x CP.8

100 Hz

f

100 Hz

Factory setting: 10 s
Customer adjustment: _______ s

CP. 8

t

Example: CP. 8 = 10 s ; the drive should decelerate from 60 Hz to 10 Hz

change in frequency = 60 Hz - 10 Hz = 50 Hz
actual deceleration time = (50 Hz / 100 Hz) x 10s = 5 s

The frequency the inverter outputs with 0V applied to the analog input
or if the activated fixed frequency (CP.11…CP.13) is lower than this
value.

Adjustment range: 0.0...409.58 Hz
Resolution: 0.0125 Hz
Factory setting: 0.0 Hz
Customer adjustment:_______ Hz

V

ref

Maximum frequency

The frequency the inverter outputs with 10V applied to the analog input
or if the activated fixed frequency (CP.11…CP.13) is greater than this
value.

Adjustment range: 0.0...409.58 Hz
Resolution: 0.0125 Hz
Factory setting: 70 Hz
Customer adjustment:_______ Hz

Fixed frequency 1...3

Three fixed frequencies can be adjusted. The selection of the fixed
frequencies is made with the terminals 4 and 5.

terminal 4

Adjustment range: 0.0...409.58 Hz
Resolution: 0.0125 Hz

terminal 5

Factory setting: 5/50/70 Hz
Customer adjustment 1:______ Hz
Customer adjustment 2:______ Hz
Customer adjustment 3:______ Hz

terminals 4 + 5

If the adjusted values are outside of the fixed limits of CP.9 and CP.10,
then the actual run frequency will be either CP.9 or CP.10.

8 F4-S Instuction Manual

Operation of the Unit

t

POWER TRANSMISSION

2.6 Special
adjustments

Max. ramp current

Max. constant current

The following parameters serve to optimize the inverter for the application.
These adjustments can be ignored at initial start-up.

This function acts as an adjustable current limit during acceleration or
deceleration. It can be used to prevent the load current from exceeding
the inverters peak current rating, thereby preventing shut down of the
inverter with an E.OC fault. When the load level reaches the adjusted
value , the acceleration or deceleration is stopped until the load drops
below the adjusted value. CP.2 displays "LAS" when the function is
active.

Adjustment range: 10...200%, 200% = off
Resolution: 1 %
Factory setting: 140 %
Customer adjustment: _______ %

This function acts as an adjustable current limit when operating at a
constant speed. It can be used to prevent the load current from
exceeding the inverters over current level, thereby preventing shut down
of the inverter with an E.OC fault. When the load level reaches the
adjusted value , the output frequency is reduced until the load drops
below the adjusted value, after which the frequency is increased again
to the previous value. CP. 2 displays "SLL" when the function is active.

CP.14

CP.15

on
off

on

off

Adjustment range: 10...200%, 200% = off
Resolution: 1 %
Factory Setting: 200 %
Customer adjustment: _______ %

t

LAD-stop

t

Current limit

f

actual

f

set

t

9F4-S Instuction Manual

Operation of the Unit

Speed search

Voltage stabilization

When starting the frequency inverter into a spinning motor, an E.OC fault
can be triggered because of the difference between the actual motor
speed and the inverter set speed. By activating speed search, the inverter
searches for the actual motor speed, adjusts its output frequency to
match. It will then accelerate with the adjusted ramp time to the given set
value. During speed search CP.2 displays "SSF". This parameter deter­mines under which conditions the function will operate.

Adjustment range: 0...7
Resolution: 1
Factory setting: 0
Customer adjustment: _______

Value Condition

0 function off
1 control release turned on
2 power on
3 control release & power on
4 after fault reset
5 after reset & control release
6 after reset & power on
7 all the above

This parameter can be used to regulate the output voltage in relation to
the rated frequency. Voltage variations at the input as well as in the DC
bus will have only a small influence on the output voltage (V/Hz­characteristic). The function can be used to adapt the output voltage for
special motors. In the example below the output voltage is stabilized at
230 V (The graph shows 0% boost).

Adjustment range: 150...649 V, off
Resolution: 1 V
Factory setting: off
Customer adjustment: _______ V

U

VI , V

N/UA

O

250 V

CP.17 = 230 V

190 V

CP.5 = 50 Hz

VO at VI = 250V unstabilized

VO at VI = 250V stabilized

VO at VI = 190V stabilized

VO at VI = 190V unstabilized

VI = input voltage
VO= output voltage

f

10 F4-S Instuction Manual

Operation of the Unit

POWER TRANSMISSION

Slip compensation

Autoboost

Slip compensation reduces speed variations caused by changes in the
load. The function will increase the output frequency, as the load current of
the motor increases, to maintain the same motor speed. To activate the
function, set the value at 1.00 and optimize as directed in the diagram below

Adjustment range: -2.50...2.50
Resolution: 0.01
Factory setting: 0.00 (= off)
Customer adjustment: _______

Autoboost gives automatic I*R-compensation. When the load torque
increases, the additional resistive losses reduce the magnetizing current in
the motor, leading to a reduction in motor speed. To compensate, auto
boost can be used to automatically increase the applied motor voltage as the
motor load increases. To activate the function set the value to 1.00 and
optimize as directed below. After making an adjustment, check the
response by monitoring the motor voltage. When the load is removed, the
voltage should drop to a lower level. If it does not, reduce the value of CP.19.

Adjustment range: -2.50...2.50
Resolution: 0.01
Factory setting: 0.00 (= off)
Customer adjustment: _______

Slip compensation and autoboost functions use a model of a standard motor
equal in power to the inverter rating. When using a special motor or in case
of inverter oversizing, both functions should be deactivated.

A

B

C

Torque

Motor
Speed

Motor
Speed

Motor
Speed

Motor load

t

t

t

t

Example

Torque

1) No compensation
Standard motor

1

2

3

Speed

curve,speed
decreases with
increasing torque

2) Good compensation
speed remains
stable with
increasing torque

3) Over compensation
speed is increased
too much

Slip compensation and autoboost adjustment steps see curves A,B,C above.

1. Measure "no load" speed with tachometer. Apply the load to the motor and the speed will drop as in curve A.

2. To begin compensation, set CP.18 and CP.19 to 1.00. Motor speed should increase.

3. If speed is still below "no load" value, increase CP.19. until speed does not change with further increase in
CP.19. See curve B.

4. Increase CP.18 to compensate for the remaining speed difference. See curve C.

5. Verify output voltage drops when load is removed.

11F4-S Instuction Manual

Operation of the Unit

DC-braking

During DC-braking, the motor is not decelerated by a controlled ramp.
Quick braking without regen voltage can be achieved by applying a DC
voltage to the motor winding. This parameter determines how the DC­braking is triggered.

Value Mode of Activation
0 DC-braking deactivated
1 DC-braking activates when direction signal is removed and

the output frequency has reached 0Hz. Braking time is
dependent on CP.21 or until a direction of rotation signal is
given.

2 DC-braking activates as soon as the direction signal is

removed. Braking time dependent on the actual frequency.

3 DC-braking, activates as soon as the direction of rotation

changes. Braking time dependent on the actual frequency.

4 DC-braking activates when rotation signals are removed and

the actual frequency goes below 4 Hz.
5 DC-braking, when the actual frequency goes below 4 Hz.
6 DC-braking, activates when the set value goes below 4 Hz.
7 DC-braking deactivated
8 DC-braking deactivated
9 DC-braking before the acceleration ramp when a direction

signal is given. The time is dependent on CP.21.

Braking time

Factory setting: 0
Note: Enter-Parameter
Customer adjustment: _______

The actual braking time is calculated using one of the two methods listed
below. The value of CP.20 determines which one is used.

- entered time = braking time

- entered time relates to 100 Hz and increases/decreases
proportionally to the actual frequency.

Adjustment range: 0.00...100 s

f

100Hz

Resolution: 0.01 s

f

Factory setting: 10 s

actual

Customer adjustment: _______

Calculation of the braking time:

tbrake

actual

CP.21 x f

=

actual

time
brake
actual

CP.21

100 Hz

12 F4-S Instuction Manual

Operation of the Unit

POWER TRANSMISSION

Relay output

The relay output (terminals 1,2,3) is adjusted as a fault relay at the factory.
This parameter can adjust the function of the output to any function listed
in the table below.

Value Function

0 No function
1 On when unit has voltage applied to it
2 Fault relay
3 No function
4 Overload alert signal (10s before inverter switch off)
5 Over temperature inverter alert signal
6 Over temperature motor alert signal (10s before switch off)
7 No function
8 Stall load level (CP.15) exceeded

9 LA-/LD-Stop load level (CP.14) exceeded
10 DC-braking active
11 No function
12 Load level (CP.3) > 100%
13 No function
14 Actual value=set value (CP.2 = Fcon or rcon only;

not during noP, LS, error, SSF)
15 Acceleration (CP.2 = FAcc, rAcc, LAS)
16 Deceleration (CP.2 = FdEc, rdEc, LdS)
17 Forward rotation (not during noP, LS error)
18 Reverse rotation (not during noP, LS error)
19 Actual direction of rotation = set direction of rotation
20 Actual frequency > frequency level CP.23
21 Set frequency > frequency level CP.23
22 No function
23 Operating signal (active after initialization; off when fault occurs)
24 Run signal
25 No function

Frequency level

Factory setting: 2
Note: Enter-Parameter
Customer adjustment: _______

This parameter determines the switching point for the relay output
terminals 1,2,3 when CP.22 = "20” or “21”

After the switching of the relay, the frequency can move within a 0.5 Hz
window, without the relay changing states.

Adjustment range: 0.0...409.58 Hz
Resolution: 0.0125 Hz
Factory setting: 4 Hz
Customer adjustment: _______

13F4-S Instuction Manual

Drive mode

2.7 The "Drive Mode"

2.7.1 Start / Stop
"Drive Mode"

The drive mode is an operating mode of the F4-S inverter used to start the
drive manually through the digital operator. After applying a signal to the
control release terminal 14, the set frequency and rotation direction can be
adjusted by the buttons on the digital operator. In order to activate the drive
mode, a password in CP.0 must be entered. Refer to page 20 for
password information. The display changes as follows.

Status

Direction of rotation

F=forward / r=reverse

At first the inverter
is in standby mode

By pressing
the motor accelerates
to and runs at the
adjusted value

START

noP = no control release signal /

LS = neutral position /

50.0 = actual frequency

STOP

By pressing the
motor decelerates to 0 rpm
and returns to standby
mode.

2.7.2Changing
Direction of
Rotation

2.7.3 Speed Setting

2.7.4Leaving
"Drive Mode"

ENTER

Pressing
changes direction of
rotation

The set frequency can be changed by pressing or
while holding the key down.

To exit the drive mode the inverter must be in standby (display shows noP
or LS). Press the FUNC and ENTER keys simultaneously for about 3
seconds in order to leave the drive mode. The CP-parameters appear in
the display.

F/R

FUNC.

SPEED

FUNC.

The display changes when
is pressed. The set frequency is
displayed.

START

SPEED

STOP

FUNC.

SPEED

14 F4-S Instuction Manual

+

ENTER

F/R

for 3 seconds

Error Diagnosis

POWER TRANSMISSION

3. Error diagnosis

Error messages are represented with an "E. " followed by a code that
defines the type of error. When an error occurs, inverter operation stops
and the motor is no longer controlled by the inverter. The errors and their
causes are described below.

Undervoltage

Occurs, when the DC bus voltage falls below the permissible value.
(for 230V units 255VDC, for 460V units 425VDC)

Possible Causes

- input voltage too low or unstable

- inverter sized too small for given load

- missing input phase or input not connected properly

- connection to an unbalanced supply (i.e. corner
ground delta)

Overvoltage

Occurs, when the DC bus voltage rises above the permissible value.
(for 230V units 400VDC, for 460V units 800VDC)

Possible Causes

- input voltage too high

- voltage spikes on supply voltage

- PF correction capacitor switching at sub-station

- deceleration time too short and or braking resistor
not connected.

Possible solutions

- install boosting transformer to increase voltage

- step up to next larger sized inverter

- check protective fusing for blown fuses, verify connections

- install ∆ to Y isolation transformer between inverter and
main supply voltage

Possible solutions

- install buck transformer to decrease voltage

- install line choke on input to inverter

- install buck transformer or choke on inverter input

- lengthen decel time or add/connect braking resistor

Overcurrent

Occurs, when the peak current level of the inverter has been exceeded
or during a ground fault condition. For specific current levels consult the
power stage instruction manual and refer to the technical data section.

Possible causes

- motor larger than recommended for inverter size

- acceleration or deceleration times too short

- voltage boost (CP.6) set too high

- rated frequency (CP.5) of inverter is not adjusted
correctly

- 50 Hz 400V motor running on inverter connected to
480V

Overload

Occurs when inverter load is greater than 105% for longer than the
allowable time. Consult inverter specifications. See also E.nOL .

Possible causes

- motor larger than recommended for inverter size

- increased friction or jam in the mechanical system

- motor incorrectly wired

- rated frequency (CP.5) of inverter is not adjusted
correctly

- 50 Hz 400V motor running on inverter connected to
480V

Possible solutions

- increase size of inverter, consult inverter specifications

- lengthen times and/or activate LAD stop function (CP.14)

- lower adjusted value

- check motor rated frequency and adjust inverter rated
frequency the same except in case listed below

- change rated frequency from 50Hz to 60 Hz when input
voltage is 460V or greater

Possible solutions

- increase size of inverter, consult inverter specifications

- check machine for wear, clear obstructions

- verify motor connection

- check motor rated frequency and adjust inverter rated
frequency the same except in case listed below

- change rated frequency from 50Hz to 60 Hz when input
voltage is 460V or greater

15F4-S Instuction Manual

Error Diagnosis

Cooling down phase
completed

After an E.OL error you must wait for the inverter to cool down. This
message appears after the cooling down phase is completed. The
E.OL error can only be reset after this message is displayed.
Removing the supply voltage will not defeat the cool down period;
leave supply voltage on until message is displayed.

Overheat

Possible Causes

- insufficient cooling

- insufficient cooling

- ambient temperature too high

- cooling fan (when installed) not functioning

External Overheat

Occurs, when the inverter heat sink temperature is greater than 158°F.

Occurs when resistance between "OH terminals becomes greater
than 1650 ohms.

Possible Causes

- factory jumper loose (not using this function)

- ambient temperature around motor too high

- motor overload, see E.OC and E.OL causes

- Motor temperature sensor cable broken

Possible solutions

- observe proper mounting clearances

- clear heatsink of all dirt and debris

- install cooling device to reduce air temp below 113°F

- check for fan obstructions, blades should spin freely.

Possible solutions

- tighten black jumper wire between OH terminals

- install cooling device to reduce air temp

- see E.OC and E.OL solutions

- repair cable

Overheat cleared

Internal or external temperature has dropped to a safe level.
Error "E. OH" can be reset.

Charging relay error

Occurs when the charging relay does not close after the DC bus voltage
reaches its normal operating level.

Possible Causes

- see causes listed under E.UP

- charge relay or charge resistor has failed

Possible solutions

- see solutions listed under E.UP

- replace unit with new unit and return old unit for repair

16 F4-S Instuction Manual

Glossary

4. Glossary

POWER TRANSMISSION

Analog/Digital Common

EMC

Energy-Saving Function

Frequency-dependent Switch

Actual Value

The F4-S inverter has potential separated (galvanically isolated)
digital inputs and power supply. With this design, electrical noise
and leakage currents are greatly reduced. As a result, the digital
common (6) serves as a reference for the power supply and all
digital inputs. The analog common (9) serves only as a common
for the analog signals. For best results, it is important to avoid
connecting these two commons together.

Electro- magnetic compatibility, guidelines for reducing high
frequency interference caused by the inverter.

When motors are running under "no-load" conditions, the voltage
can be reduced, and as a result energy can be saved.

Relay or transistor output that activates at a preset frequency.

A value that is measured by sensors in the inverter or a value that
is calculated from a measured value and a preexisting condition.

LA-Stop

RS232/485

Set Value

Speed Search

Stall

Acceleration stop, prevents over current errors during acceleration
by stopping the ramp. The current level is specified by the max.
ramp current (CP.14).

RS232, is the standard serial interface for connection between an
inverter and computer or PLC with a cable length of 45 feet
maximum . RS485, is the standard serial interface for multiple
inverters connected to a computer or PLC . Maximum cable length
is 3000 feet.

The preset analog or digital value with which the frequency inverter
shall operate.

Speed search prevents an over current error when starting the
inverter into a running motor. The motor speed is determined and
the inverter begins to accelerate the motor at this frequency.

The Stall-function protects the inverter against an E.OC error while
running at a constant speed. When exceeding the level adjusted
with CP.15, the output frequency is reduced until the load level
drops below the level in CP.15.

17F4-S Instuction Manual

Index

5. Index

A

Acceleration stop 17
Acceleration time 5, 7, 19
Actual frequency display 5, 6, 19
Actual load 5, 6, 19
Actual V alue 17
Analog inputs 2
Analog output 2
Autoboost 5, 11, 19

B

Basic adjustment 7
Boost 5, 7, 19
Braking time 5, 19

C

Change direction 14
Common 2
Control release 2
Cooling down phase 16
Current limit 9
Current limit resistor error 16

D

DC-braking 5, 12, 19
Deceleration time 5, 8, 19
Digital inputs 2
Digital common 2
Drive Mode 14

K

Keyboard 3, 4

L

LAD -stop 9, 17
LED 3

M

Max. constant current 5, 9, 19
Max. r amp current 5, 9, 19
Maximum frequency 5, 8, 19
Minimum frequency 5, 8, 19
Modulation 6, 14

O

Operating Display 6
Optimize 11
Overcurrent 15
Overheat 16
Overload 15
Overvoltage 15

P

Pass word input 5, 19, 20
Peak load 5, 6, 19
Peak value 6

R

V

V oltage stabilization 5, 10, 19

X

X1 2

E

EMC 17
Energy-Saving Function 17
Error diagnosis 15

F

Fixed frequency 2, 5, 8, 19
Forward 2
Frequency v alue 5, 13, 19
Frequency-dependent s witch 17

I

I*R - compensation 11
Interface operator 3
Interference voltage 2
Inverter status display 5, 6, 19

Rated frequency 5, 7, 19
Relay output 2, 5, 13, 19
Releasing 5
RS232/485 3, 17

S

Set value input 2
Set-point value 17
Slip compensation 5, 11, 19
Special adjustments 9
Speed search 5, 10, 17, 19
Stall-function 17
Start / Stop 14

U

Undervoltage 15

18 F4-S Instuction Manual

Quick Reference

POWER TRANSMISSION

6. Quick reference

Display Parameter Adjust. range Resolution Customer setting

CP. 0 Password input 0...9999 1 ­CP. 1 Actual frequency display Read only 0.1 Hz ­CP. 2 Inverter status display Read only - ­CP. 3 Actual load Read only 1 % ­CP. 4 Peak load Read only 1 % ­CP. 5 Rated frequency 0...409.58 Hz 0.0125 Hz ____________
CP. 6 Boost 0...25.5 % 0.1 % ____________
CP. 7 Acceleration time 0.01...300 s 0.01 s ____________
CP. 8 Deceleration time 0.01...300 s 0.01 s ____________
CP. 9 Minimum frequency 0...409.58 Hz 0.0125 Hz ____________
CP.10 Maximum frequency 0...409.58 Hz 0.0125 Hz ____________
CP.11 Fixed frequency 1 0...409.58 Hz 0.0125 Hz ____________
CP.12 Fixed frequency 2 0...409.58 Hz 0.0125 Hz ____________
CP.13 Fixed frequency 3 0...409.58 Hz 0.0125 Hz ____________
CP.14 Max. ramp current 10...200 % 1 % ____________
CP.15 Max. constant current 10...200 % 1 % ____________
CP.16 Speed search 0...7 1 ____________
CP.17 Voltage stabilization 150...649 V,oFF 1 V ____________
CP.18 Slip compensation -2.50...2.50 0.01 ____________
CP.19 Autoboost -2.50...2.50 0.01 ____________
CP.20 DC-braking 0...9 1 ____________
CP.21 Braking time 0...100 s 0.01 s ____________
CP.22 Relay output 0...25 1 ____________
CP.23 Frequency level 0...409.58 Hz 0.0125 Hz ____________

The function key (FUNC) changes between the
parameter value and parameter name.

With UP ( ) and DOWN ( ), the value of the
parameter or the parameter number is increased/
decreased. The values of "Read Only Parameters"
can not be changed.

START

Value Name

FUNC.

SPEED

STOP

START

STOP

19F4-S Instuction Manual

Passwords

7. Passwords

A - Locking the

CP-Parameters from
change (read only)

B - Releasing the
CP-Parameters,
allowing changes

FUNC.
SPEED

START

ENTER

F/R

FUNC.

SPEED

FUNC.
SPEED

START

ENTER

F/R

C - Activating
"Drive Mode"

D - Leaving "Drive Mode"

FUNC.
SPEED

FUNC.
SPEED

+

ENTER

F/R

FUNC.

SPEED

XX

START

ENTER

F/R

FUNC.

SPEED

for 3 seconds

20 F4-S Instuction Manual

POWER TRANSMISSION

Special Notice to Customer

Prior to delivery all products pass several quality and performance inspections in order to guarantee
the product is free from defects in manufacturing. When used in accordance with the operating
instructions, failure of the unit is not likely. However, if you have reason for concern please contact
KEBCO at 800-899-3226 and ask for inverter technical support. From this point our technical
support engineers can help you determine the cause of the problems and also the proper solution.

Listed values in this manual are standard values only and do not pertain to special units. We reserve
the right to make technical changes without notification.

KEBCO Limited Warranty

KEBCO will repair or replace, at KEBCO's discretion, any inverter which shows signs of defect
in material, workmanship or fails to meet factory specifications with in one year from original date
of shipment from KEBCO in St. Paul. The serial number will be used to track the shipping date.
Operation of the inverter outside the rated specifications printed in the instruction manuals will void
the warranty.

KEBCO does not assume any liability ( cost of removal, cost of installation, down time, production
delays, or damage to other items associated with the inverter) for failures which occur during or
after the warranty period.

To make a warranty claim contact the Electronic repair department at the number listed above, and
request a Return Goods Authorization (RGA) number. The inverter is to be shipped prepaid to
the address listed below. Suitable packaging must be provided to prevent the inverter from
incurring damages during shipping as damages of this nature will void the warranty.

KEBCO will inspect the inverter to determine the cause of the problems in the inverter and will
repair or replace the inverter at its discretion.

KEBCO Inc.
Attn. ELECTRONIC REPAIR (RGA#)
1335 Mendota Heights Road
St. Paul, MN 55120

POWER TRANSMISSION

KEBCO Inc. • USA Headquarters
1335 Mendota Heights Road
St. Paul, MN 55120
PH:800-899-3226 / 651-454-6162
FAX:[phone]
WEB:www.kebco.com

With Sales Offices in:
Atlanta, Georgia
Columbus, Ohio
Dallas, Texas

KEBCO 0S.F4.0EB-K120 01/00