Lenze MC Series Drives - Manual (Page 13)

9 RG-MCMOD
Drive Setup & Operation
4.7 Monitoring Only Operation
1. Power up drive with serial enabled.
2. Simply read AC Tech Register #24 (Modbus Register #25) or any other readable register.
3. No unlocking or watchdog issues apply for monitoring.
4.8 Normal Control Operation Sequence
1. Power up drive with serial enabled.
2. Unlock control by writing a zero to Register #48.
3. Control drive operation via various commands to Register #1 (Start, Stop, Reverse direction, etc.).
4. If the Watchdog Timer is enabled, keep it from timing out by repeated reads of drive status (Register
#24 – 6 registers) performed at reasonable intervals (typically less than 5 seconds between reads
because the Watchdog typically faults at 10 seconds).
5. Lock Control when drive operations are complete by writing a 2 to Register #1 (assert bit 1 of Register
#1).
6. Drive is now returned to LOCAL mode (control from the drive keypad).
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 with serial enabled.
2. Unlock Controls and Parameters by writing the current programming password (default 19) to Register
#48.
3. Put drive in MANUAL mode so that it responds to speed commands from the Keypad Speed Command
register. This is done by sending 0200 hex to Register #1 (bit 9 asserted).
4. Control Drive Operation via various commands to Register #1 (Start, Stop, Reverse direction, etc.).
5. Control Drive Speed by writing the Speed Commands to Register #40 (Keypad Speed Command).
6. Change the programming parameters (e.g., change the acceleration rate by writing new acceleration
rate to register #59)
7. If the Watchdog Timer is enabled, keep it from timing out by insuring that repeated reads of any of the
registers are performed at reasonable intervals (typically less than 5 seconds between reads because
the Watchdog typically faults at 10 seconds). Note: It is suggested that the drive status register (#24)
be used for this function.
8. Lock Controls and Parameters when drive operations are complete by writing a 2 to Register #1 (assert
bit 1 of Register #1).
9. Drive is now returned to the control method programmed in Parameter 30, CONTROL (i.e., local control
from the drive keypad).