Configuring The Frequency Converter; Fig. 17 - Variable Frequency Drive - Automatic Systems BL 227 EVO Technical Manual

7.2. CONFIGURING THE FREQUENCY CONVERTER

The factory settings protect the variable frequency drive and the gear motor from all malfunctions. The settings of the variable
frequency drive should therefore never be modified.
ANY MODIFICATION OF THESE PARAMETERS WITHOUT PRIOR EXPRESS PERMISSION FROM AUTOMATIC SYSTEMS IS YOUR
FULL RESPONSIBILITY AND WILL AUTOMATICALLY VOID THE PRODUCT WARRANTY.
The frequency converter used is connected in Modbus.
The configuration is performed via Modbus. The only parameter to be entered manually is the Modbus address (add = 1) and the
baudrate (tbr = 38,400). These can be accessed via the configuration menu:
CoNF (Configuration)
CoNF (Configuration)
Switch the power supply at the circuit breaker off and then on again to take into account the modifications.
Once the control logic restarts, the frequency converter should display a value. For example:
7.2.1.1. MAIN ERROR MESSAGES (ATV12)
In the event of a fault, the frequency converter can indicate the origin of the fault via codes.
The most common faults are described below.
AFTER SWITCHING OFF THE POWER SUPPLY, THIS CODE DISAPPEARS AND WILL NO LONGER BE VISIBLE WHEN IT IS
SWITCHED ON AGAIN.
IT IS THEREFORE IMPERATIVE TO RECORD THIS CODE BEFORE REINITIALIZING THE BARRIER.

Fig. 17 - Variable frequency drive

 FrL  Mdb
 FuLL  CoM
(Modbus)
(Communication) 

CODES DESCRIPTION
OHF (OHF) VFD temperature rise.
OLF (OLF) Motor overload.
ObF (ObF) Excessive braking.
SLF1 (SLF1) Modbus communication fault: check that the
cable between the control logic and the variable
frequency drive is correctly connected.
OPF1 (OPF1) Loss of one phase at the output of the variable
frequency drive.
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BL 227 EVO
Add
Tbr (Transfer baud rate) = 38400
= 1