Introduction
The Jain C3+ Platform can remotely control and monitor the Yaskawa Intelligent Pump Controller for synchronous and asynchronous motors.
The installation of the Pump Controller is not detailed in this article, installation should be carried out by a qualified electrician. This article focuses on the interface between the C3+ and Yaskawa VFD Pump Controller. Jain will provide support ONLY for the C3+ configuration (though note that the MODBUS map below MUST be followed).
Remote control capability should not replace local on/off control or any other fail-safe hardware. An Emergency Stop button and appropriate power disconnects should always be in place at the same location as the VFD.
Application
As part of a Jain system, the device can show:
- Status
- Pressure
- Pressure Setpoint
- Faults
- Output Frequency
- Output Current
- Power
- Energy Consumption
- Drive Mode
Supported Models
iQpump1000 AC Drive
Electrical Connection and Installation
Connection to the VFD is via the C3's RS485 MODBUS port. The field unit should be located as close as possible to the controller.
- Separate the communications cable from the main circuit cables and other wiring and power cables. Use shielded cables for the communications cables, and properly shielded clamps to prevent problems with noise.
- With the power shut off, connect the communications cable to the C3 and the drive as shown in the diagram below. Use terminals TB5. Connect S+ to R+, and S- to R-.
- Set the DIP switch S2 to the ON position.
- Switch the power on.
- Set the parameters needed for serial communication using the digital operator as described in the next section.
System Protection
Please note that Jain do not take any responsibility for the safety and protection of the system. This is assumed to be the responsibility of the VFD. Any further protection requirements above those provided by the VFD are the responsibility of the installer.
Configuring the Yaskawa Panel
The VFD acts as a MODBUS Slave device with the C3+ as the Master. Follow the steps below to configure the VFD for MODBUS communication.
- Set the following parameters needed for serial communications using the digital operator:
|
Parameter |
Description |
Value |
|
H5-01 |
Address |
0x1F |
| H5-02 | Comms Speed/Baud rate | 3 (9600bps) |
| H5-03 | Parity | 0 None |
| H5-07 | RTS Control Selection | 1 |
| H5-12 | Run Command Method | 0 |
|
b1-01 |
Frequency Reference Selection 1 | 2 Modbus |
|
b1-02 |
Run Command Selection 1 |
2 Modbus |
|
b5-01 |
PID Function Setting |
1 |
- Shut the power off and wait until the display on the digital operator goes out completely.
- Turn the power back on.
- The drive is now ready to begin communicating with the C3.
Adding the driver to Global
The Yaskawa VFD Pump Drive can be found under the 'Pump Control' category in Manage Equipment.
Required MODBUS register map
The configuration of the VFD MODBUS register layout must follow the below:
|
Description |
Parameter Description |
Parameter |
Register Offset |
Register Offset in Hex |
|
Motor Control |
Operation Commands |
- |
1 |
0x0001 |
| Setpoint Write | PID Target | - | 6 | 0x0006 |
| Control Selection Setting | Control Selection Setting | - | 15 | 0x000F |
| Pressure | Pump Feedback | U1-91 | 2982 | 0x0BA6 |
| Setpoint Read | Auto Setpoint | U5-99 | 5529 | 0x1599 |
|
Status |
Drive Status |
U1-12 |
75 |
0x004B |
| Faults | Fault Contents 1 | - | 33 | 0x0021 |
| Output Frequency | Output Frequency | - | 36 | 0x0024 |
|
Output Current |
Output Current | - | 38 | 0x0026 |
| Power | Output Power | - | 39 | 0x0027 |
| Energy Consumption | kWh | U4-10, U4-11 | 92-93 | 0x005C,0x005D |
| Feedback Device Scaling | Feedback Device Scaling | P1-03 | 3074 | 0x0C02 |
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