PowerTec Digimax, Installation And Operation Instruction Manual

Page: 40 / 46

Page 32 © copyright 1992-1996 by Powertec Industrial Motors
Speeds attained by the UP and DN inputs become the new current speed in the MOP mode.
The MOP mode may be used as the speed control mode even if no external inputs are
used for the UP and DN functions. The front panel UP and DN buttons may be used for INC
and DEC. A SETPOINT may still be entered in the normal manner.
FLOAT OR FREEZE FLOAT OR FREEZE FLOAT OR FREEZE FLOAT OR FREEZE FLOAT OR FREEZE
Parameter #14 (page 18).
FREEZE -- The SETPOINT speed or ratio is not affected by starting or stopping. After
a stop, the DIGIMAX DIGIMAX DIGIMAX DIGIMAX DIGIMAX
®
will ramp back to the previous speed upon the next RUN command.
FLOAT -- In FLOAT mode, the SETPOINT (current speed) follows the motor speed.
If a stop command is given, the SETPOINT will float down to zero with the motor speed.
When the next run command is given, the UP command must be used to get the motor back
up to speed, or a new speed entered.
MASTER OR SLAVE MASTER OR SLAVE MASTER OR SLAVE MASTER OR SLAVE MASTER OR SLAVE
Parameter #8 (page 17)
Parameter #4 (page 16)
When a 0 is entered into parameter #8, the DIGIMAX DIGIMAX DIGIMAX DIGIMAX DIGIMAX
®
is in the MASTER MODE. The
MASTER mode generates its own frequency from the parameters and SETPOINT given.
When a 1 is entered into parameter #8, the DIGIMAX DIGIMAX DIGIMAX DIGIMAX DIGIMAX
®
is in the SLAVE MODE. The
SLAVE mode requires a frequency input to follow, and direct ratios are entered as
SETPOINTS.
When a 2 is entered into parameter #8, the DIGIMAX DIGIMAX DIGIMAX DIGIMAX DIGIMAX
®
is in the INVERSE SLAVE
MODE. This mode also needs a frequency to follow, but inverse ratios (1/Ratio) are entered
as SETPOINTS.
There are only a few differences between the setup for these modes. The significant
differences are in the SETPOINT, parameter #4, and parameter #8.