CERUS CI-007-P2 - Local;Remote Control Mode Selection; Modbus-RTU Communication Control Mode; Option Communication Card Control Mode; Function Settings and Descriptions

Chapter 5 – Parameter List
4-5
4.2.4 Local/Remote Control Mode
When VFD is controlled remotely and [LOCAL/REMOTE] key is pressed, the VFD control mode changes
from remote to local mode based on the parameter SET-90 selection. The parameter DRV-00 should show
the following screen with letter L (Local) next to parameter number. Now VFD is ready for a keypad control
mode.
The Start/Stop and speed control for this mode is
described in Keypad Control Mode in 4.2.2 section.
If [LOCAL/REMOTE] key is pressed again, VFD
returns to remote control mode.
4.2.5 Modbus-RTU Communication Control Mode
In order to control Start/Stop Forward or Reverse command and speed
reference of the VFD from external communication device via VFD Modbus-
RTU terminals, set Drive Mode parameter SET-09 to Int.485 and Speed Ctrl
parameter SET-10 to Int. 485. The parameter DRV-00 should show the
following screen.
Connect two-wire communication cable to VFD terminals and is ready to be controlled by external controller
via Modbus-RTU communication. VFD parameter address mapping is shown in parameter description tables
in Hex-Decimal format.
4.2.6 Option Communication Card Control Mode
The optional communication cards include: LonWorks, N2, BacNet communication protocols. When Option
card is installed, the COM parameter groups will be available.
In order to control Start/Stop Forward or Reverse command and speed reference of the VFD from external
communication device via VFD Option Card, set Drive Mode parameter SET-09 to Int.485, Speed Ctrl
parameter SET-10 to Int. 485 and Opt. Mode parameter COM-02 to Cmd. + Freq. The parameter DRV-00
should show the following screen.
Connect communication cable to Option Card terminals and VFD is ready to be
controlled via communication. VFD parameter address mapping is shown in the
option card manual.
4.3 Function Settings and Descriptions
4.3.1 Function parameters settings
All VFD parameters have default factory settings based on application and can be changed in programming
mode. Some parameters have critical role in VFD operation and motor protection and can be changed only
in stop mode. The VFD will run a motor with default settings but for better performance and reliable
operation it is recommended to set motor data, control and protection features based on the application.
The following table shows common parameter settings that should be checked before VFD startup.
Parameter Name Code Description (Default)
Application SET-00 Application Selection (none)
Input Phase SET-01 Single-Phase or 3-Phase power Selection (3-Phase)
Motor HP SET-02 Motor Horse Power Rating (Drive Rating)
Motor FLA SET-03 Motor Nameplate Full Load Amperes (UL Table FLA)
Motor RPM * SET-04
Motor Synchronous RPM (3600 for submersible pumps and 1800 for
other applications)
VAC SET-07 Input power voltage (240 or 480)
Motor Volt SET-08 Motor Voltage (240 or 480)
Drive Mode SET-09 Drive Start/Stop Control Mode (Remote-1)
Speed Ctrl. SET-10 Speed Reference Source (Keypad-1 for pumps and I for Fans)
PID Mode SET-20 Internal Proportional Control (Pump applications YES)
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