5
4) Since the Watchdog Timer is enabled, keep it from timing out by insuring that repeated reads of drive status
(Register #24 - 6 registers) are 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 TERMINAL mode (control from the drive’s terminal).
I) Start/Stop, Speed control and parameter Change Operation Typical Sequence.
1) Power up drive with serial enabled and TB1 closed.
2) Unlock Controls and Parameters by writing the current programming password (default 225) to Register #48.
3) Set parameter #5 (standard speed source) to 01 (keypad), and 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 #69).
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 TERMINAL mode (control from the drive’s terminal).
Minarik R 901 E. Thompson Ave. R Glendale, CA 91201 R Ph: (800)646-2745 R Fax: (800) 394-6334 R www.minarikcorp.com
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