Lenze Tmd Series Drives Modbus Communications - Manual (Page 15)

11 RG-TDMOD
Drive Control & Communication
4.8 Normal Control Operation Sequence
1. Power up drive.
2. Set parameter C01 (Control Source Setpoint) to selection 10 or 11.
3. Close terminal 28.
4. Unlock control by writing a zero to Register #48.
5. Set the network speed reference by setting bit 8 of Register #1. The drive must be in "NETWORK
SPEED REFERENCE" (Register #1, Drive Control) in order to control speed via Register #40.
6. Control drive operation via various commands to Register #1 (Start, Stop, Reverse direction, etc.) and
change the speed command by writing to Register #40.
7. If serial timeout is activated (n22 = 1, 2 or 3), keep it from timing out by assuring that repeated reads
of drive status (Register #24, 6 registers) are performed at reasonable intervals smaller than the time
set in parameter n23.
8. Lock Control when drive operations are complete by writing a 2 to Register #1. (assert bit 1 of Register
#1).
4.9 Start/Stop, Speed Control and Parameter Change Operation
The typical sequence for a Start/Stop, Speed Control or Parameter Change operation is listed herein.
1. Power up drive.
2. Set parameter C01 (Control Source Setpoint) to selection 10 or 11.
3. Close terminal 28.
4. Unlock Controls and Parameters by writing the current programming password (default 0) to Register
#48.
5. Control Drive Operation via various commands to Register #1 (Start, Stop, Reverse direction, etc.).
6. Set the network speed reference by setting bit 8 of Register #1. The drive must be in "NETWORK
SPEED REFERENCE" (Register #1, Drive Control) in order to control speed via Register #40.
7. Control Drive Speed by writing the Speed Commands to Register #40 (Serial Speed Command).
8. Change the programming parameters (e.g., change the acceleration rate by writing new acceleration
rate to register #62)
9. If serial timeout is activated (n22 = 1, 2 or 3), keep it from timing out by assuring that repeated reads
of drive status (Register #24, 6 registers) are performed at reasonable intervals smaller than the time
set in parameter n23.
10. Lock Controls and Parameters when drive operations are complete by writing a 2 to Register #1 (assert
bit 1 of Register 1).