7 application examples – GE Industrial Solutions AF-650 GP DeviceNet User Manual
Page 48
7 Application Examples
7.1 Example: Working with Instance 101/151 Process
This example shows how to work with I/O Instance 101/151, which consists
of Control Word/Status Word and Reference/Main Actual Value. The Instance
101/151 also has two additional words, which can be programmed to monitor
process signals, as shown in the figure.
The application requires monitoring of the motor torque and digital input, so
PCD 3 is set up to read the actual motor torque. PCD 4 is set up to monitor
the state of an external sensor via the process signal digital input. The sensor
is connected to digital input 18.
An external device is also controlled via control word bit 11 and the built-in
relay of the frequency converter.
Reversing is permitted only when the reversing bit 15 in the control word and
the digital input 19 are set to high.
For safety reasons the frequency converter will stop the motor if the Device-
Net cable is broken, the master has a system failure, or the PLC is in stop
mode.
Parameter
Function
Setting
par. H-08 Reverse Lock
Motor speed range/direction
Both directions [2]
par. E-01 Terminal 18 Digital Input
Digital input 18
No operation [0]
par. E-02 Terminal 19 Digital Input
Digital input 19
Reversing [10]
par. E-24 Function Relay
Function relay
Control word bit 11 [36]
Control word bit 12 [37]
par. O-03 Control Word Timeout Time
Control word timeout time
1.0 sec
par. O-04 Control Word Timeout Function
Control word timeout function
Stop [2]
par. O-10 Control Word Profile
Control word profile
Drive Profile
par. O-50 Coasting Select
Coasting select
Bus [1]
Quick-stop select
Bus [1]
par. O-52 DC Brake Select
DC-brake select
Bus [1]
par. O-53 Start Select
Start select
Bus [1]
Reversing select
Logic AND [2]
par. O-55 Set-up Select
Set-up select
Bus [1]
par. O-56 Preset Reference Select
Preset reference select
Bus [1]
Baud rate select
- set to match other DeviceNet stations
par. DN-02 MAC ID
MAC ID
- set desired station address
par. DN-10 Process Data Type Selection
Process data type selection
Instance 101/151 [1]
par. DN-12 Process Data Config Read
Process Data Config Read
PCD 3: Torque
PCD 4: Digital input
AF-600FP /650 GP DeviceNet Operating Instructions
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