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Diagnostics Optimization CT MODBUS RTU Technical Data
136 Installation and System Design Guide
Issue Number: 1
5.17.6 NV Media Card warning suppression flag
• 9666 / 9555 - Setting, clearing NV Media Card warning suppression flag
If the option module installed in the source and destination drive are different or are in different slots the drive will produce a 'Card Option' trip. If data
is being transferred to a drive of a different voltage or current rating a 'Card Rating' trip will occur. It is possible to suppress these trips by setting the
warning suppression flag. Once the suppression flag is set the option module, rating dependent parameters are not transferred.
• Setting 9666 in Pr mm00 will set the warning suppression flag
• Setting 9555 in Pr mm00 will clear the warning suppression flag
5.17.7 NV Media Card read only flag
• 9888 / 9777 - Setting and clearing the NV Media Card read only flag
The NV Media Card may be protected from writing or erasing by setting the read only flag. If an attempt is made to write or erase a data block when
the read only flag is set, a 'Card Read Only' trip is initiated. When the read only flag is set only codes 6yyy or 9777 are effective.
• Setting 9888 in Pr mm00 will set the read only flag
• Setting 9777 in Pr mm00 will clear the read only flag
5.18 Elevator Connect PC tool
The discovery protocol feature which is supported on the Elevator Connect PC tool will discover Elevator drives automatically which are connected to
a PC.
To allow operation with the Elevator Connect PC tool on the E300 Elevator drive a comms cable is required. See section 5.20.1 485 Serial
communications on page 136 for details.
5.19 Changing the operating mode
Changing the operating mode returns all parameters to their default value, including the motor parameters. User Security Status (H02) and
User Security Code (H01) are not affected by this procedure.
Procedure
Use the following procedure only if a different operating mode is required:
1. Ensure the drive is not enabled, i.e. the Safe Torque Off (STO), Drive enable on Terminal 31 is Off (0)
2. Enter either of the following values in Pr mm00, as appropriate:
1253 (50 Hz AC)
1254 (60 Hz AC)
3. Change the setting of Drive Control Mode (B01) as follows:
4. Either:
• Press the red reset button
• Toggle the reset digital input
Entering 1253 or 1254 in Pr mm00 will only load defaults if the setting of Drive Control Mode (B01) has been changed.
5.20 Communications
The E300 Elevator drive offers a 2 wire EIA-485 interface. This enables the drive set-up, operation and monitoring to be carried out with a PC or
controller if required.
5.20.1 485 Serial communications
The EIA-485 option provides two parallel RJ45 connectors allowing easy daisy chaining. The drive only supports MODBUS RTU protocol.
The serial communications port of the drive is a RJ45 socket, which is isolated from the power stage and the other control terminals (see section 4.5
Communications connections on page 88 for connection and isolation details).
The communications port applies a 2 unit load to the communications network.
USB/EIA-232 to EIA-485 Communications
An external USB/EIA-232 hardware interface such as a PC cannot be used directly with the 2-wire EIA-485 interface of the drive. Therefore a suitable
converter is required.
Suitable USB to EIA-485 and EIA-232 to EIA-485 isolated converters are available as follows:
• CT USB Comms cable (CT Part No. 4500-0096)
• CT EIA-232 Comms cable (CT Part No. 4500-0087)
When using the CT EIA-232 Comms cable the available baud rate is limited to 19.2 k baud.
When using one of the above converters or any other suitable converter with the drive, it is recommended that no terminating resistors be connected
on the network. It may be necessary to remove / deselect the terminating resistor within a non-CT converter, depending on which type is used.
The information on how to link out the terminating resistor will normally be contained in the user information supplied with the converter.
Serial communications set-up parameters
Drive control mode (B01) Operating mode
Open-loop (1) Open loop mode
RFC-A (2) RFC-A mode
RFC-S (3) RFC-S mode
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