Appendix Frequency converters
Version 3.3 of Corrigo ventilation supports the frequency converters listed below:
• Vacon NXL
• Lenze
• Omron V1000
• Emerson Commander
• LS
• EBM
• Danfoss FC 101
When communicating via frequency converters through Modbus, it is sometimes necessary to
change certain settings in the frequency converter. Below are described what settings are necessary
in the various models:
Vacon NXL
No settings necessary.
Lenze
No settings necessary.
Omron V1000
Connected via RS485:
• R+ is connected to S+
• R- is connected to S-
• R+/S+ is connected to B on port 1 or 2
• R-/S- is connected to A on port 1 or 2
Parameters
The following parameters must be set from the display of the frequency converter:
• H5-01 (0x425): Slave address, set to = 1 for Supply air fan and = 2 for Exhaust air fan
• H5-07 (0x42B): RTS Control, set to = 1 (enabled) for activation of RS485
• o1-03 (0x502): Frequency reference units, set to = 1 for 0-100%.
• H5-03 (0x427): Parity, set to = 0 (no parity)
Default values should be used for remaining parameters. The following values may not be changed:
• H5-02 (0x426): Communication speed, default =3 (9600)
• H5-04 (0x428): Stopping method after communication error, default = 3 (no stop)
• H5-11 (0x43C): Communication Enter Function, default=1 (Enter command not
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