OJ FC-W series Anleitung

I N S T R U C T I O N S
Type OJ FC-W
67046A 09/14 (KPA)
English
LIST OF FIGURES
The following figures are located at the back of the instructions:
Figure 1: Location within air flow
Figure 2: Power connection
Figure 3: Colour coded motor connection
Figure 4: Pre-made cables
Figure 5: Internal terminal connections
Figure 6: Control via OJ Air2 Fan IO
Figure 7: LED indicator lights
Figure 8: Dimensions FC-W base
Figure 9: Dimensions FC-W complete 0,75-3,30 kW
Figure 10: Dimensions FC-W complete 4,0-5,50 kW
Figure 11: Relationship between setpoint and min./max. frequency
INTRODUCTION
OJ FC-W frequency converters are used to control the speed of standard
three-phase synchronous motors used for fan operation. To ensure
adequate cooling, the frequency converter must always be positioned
directly in the fan air flow (fig. 1). The frequency converter can be mounted
on the wall or directly on the motor console. Thanks to its one-piece
aluminium housing, it is extremely robust and cannot be damaged by
vibration. The frequency converter is controlled via Modbus RTU and can
thus be fully integrated with the OJ Air2 system. Operating and range
parameters can easily be adjusted for the fan concerned via Modbus.
To ensure trouble-free operation and low installation costs, the frequency
converters are equipped with built-in EMC filter. The frequency
converters are easy to open and have plenty of space to facilitate service
and maintenance.
FUNCTION
The frequency converter controls the motor by changing frequency and
voltage. The frequency converter output signal is based on the "space
vector" principle. Voltage can be converted as a linear or quadratic function
of frequency and the voltage/frequency ratio can be set to ensure optimum
motor excitation current, thus minimising power consumption and noise
level. Switching frequency is factory set to 4.5 kHz (low) but can also be
set to 9 kHz (medium) and 18 kHz (high). Raising the switching frequency
increases energy loss within the motor. The motor therefore becomes less
efficient but any audible acoustic noise is also reduced.
As standard the frequency converter has the following built-in features:
• Modbus RTU
• Flying start in both directions
• Automatic restart (5 times) in the event of over/under-voltages, etc.
• Alarm if set number (5 times) of restarts is exceeded
• Alarms for overload, over-voltage and under-voltage
• Motor protector with built-in current limiter
• Short-circuit-protected frequency converter outputs
PRODUCT PROGRAMME
Frequency converter
Type
OJ-FC0.75
OJ-FC110
OJ-FC150
OJ-FC322
• English
OJ-FC322-230
• Deutsch
OJ-FC330
• Français
OJ-FC340
• Svenska
OJ-FC355
• Norsk
• Dansk MODBUS
The frequency converter is controlled via Modbus, for example from an OJ
Air2 Fan IO. The Modbus cable should be connected to the RJ12 socket
marked "B". The frequency converter can then be addressed from the OJ
Air2 Fan IO via the "B" socket.
The frequency converter has the following address area: 0x48 (72), 0x49
(73), 0x4C (76) and 0x4D (77), and its communication protocol is: 38.4 kBd,
1 start bit, 8 data bits, 1 stop bit and no parity.
SUPPORTED MODBUS COMMANDS
Coil Stat Bit (Length = 2)
Address Function
0
1
2
3
Input Stat Bit (Length = 8)
Addr. Bit name
0 Bit0:V_LoAlr
1 Bit1:V_HiAlr
2 Bit2:I_HiAlr
3 Bit3:TempAlr
4 Bit4:PhaseErr
5 Bit5:VrippelAlr
6 Bit6:I_HiLimit
7 Bit7:EksternStop External stop input
9 Bit9: EEPROM
Error
10 Bit10:SPI_Error
© 2014 OJ Electronics A/S
Product
FC 0.75 kW, 1x230 V
FC 1.10 kW, 1x230 V
FC 1.50 kW, 1x230 V
FC 2.20 kW, 3x400 V
FC 2.20 kW, 3x230 V
FC 3.00 kW, 3x400 V
FC 4.00 kW, 3x400 V / 3.00 kW, 3x230 V
FC 5.50 kW, 3x400 V / 4.00 kW, 3x230 V
Data range
Bit0: Motor ON/OFF (1=ON)
Bit1: Reset (1= Reset/Pulse)
Save setup to EEPROM
Load setup from EEPROM
Description
V intermediate circuit
LoLimit alarm
V intermediate circuit
HiLimit alarm
Over-current alarm
Over-heating alarm
Phase fault
Ripple voltage alarm
Current limiter active
Error in EEPROM (internal
error)
Error in Serial Peripheral
Interface (SPI) (internal
error)
Active level
0.1 1 = ON
0.1 1 = Reset
0.1 1 = Save
0.1 1 = Load
Data Active
range level
0.1 1 = Alarm
0.1 1 = Alarm
0.1 1 = Alarm
0.1 1 = Alarm
0.1 1 = Error
0.1 1 = Alarm
0.1 1 = Limit
0.1 1 = Stop
0.1 1 = Error
0.1 1 = Error
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