Jump Down Change; Up-To-Speed Tolerance; Display Sample Rate; Setup During Run - PowerTec Digimax Installation And Operation Instruction Manual

Advanced microprocessor controlled digital speed/ratio controller
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#11
#11

#11 JUMP DOWN CHANGE

#11
#11
JUMP DOWN CHANGE
JUMP DOWN CHANGE
JUMP DOWN CHANGE
JUMP DOWN CHANGE
This parameter is the same as #10 (Jump UP Change), but in the downward direction.
This number is subtracted from the displayed number. It may be changed while running.
#12
#12

UP-TO-SPEED TOLERANCE

UP-TO-SPEED TOLERANCE
#12 UP-TO-SPEED TOLERANCE
#12
#12
UP-TO-SPEED TOLERANCE
UP-TO-SPEED TOLERANCE
In the MASTER mode, enter a number between 0 and 255 to set how close the actual
speed must be to the SETPOINT to turn on the Up-to-Speed circuit (both the front panel LED
and the output at TB2 terminal 15). This number is an absolute value. For example, if this
parameter has a value of 5 and the commanded speed is 1500, the speed must be between
1495 and 1505 RPM. The AT SPEED source is set in parameter #40 (see page 22).
The Up-to-Speed LED is always ON in SLAVE mode and the AT SPEED output does
not change while in the SLAVE mode except when it is slewing to a new ratio.
This parameter may be changed while in the RUN mode.
#13
#13
JUMP / M.O.P.
JUMP / M.O.P.
#13 JUMP / M.O.P.
#13
#13
JUMP / M.O.P.
JUMP / M.O.P.
Enter a 0 for JUMP mode, or a 1 for MOP mode. Any other number will generate an
error code in the display. This number may be changed while running. See page 31.
In JUMP mode, the UP button or the TB2 terminal 9 input will add the AMOUNT of the
value in parameter #10 to the current speed or ratio. If the current speed is 1100 and 50 is
stored in parameter #10, the speed will increase to 1150 as long as the UP button or UP input
is active. When the button is released, the speed returns to its previous value. This temporary
operation is the same for ratios and for the DN button or the DN input at TB2 terminal 10.
In MOP mode, the closure of the UP button or input will increase the SETPOINT (speed
or ratio) as soon as the closure takes place by the AMOUNT in parameter #10. If the button
or input is released in less than half a second (0.5 sec), the SETPOINT will stay at the new
value. If the contact stays closed for more than 0.5 second, then the SETPOINT will continue
to increase at the rate set by the Acceleration Time (parameter #6). The increase will
continue until the circuit opens, at which point the speed or ratio will remain at the new value.
In MOP mode, the closure of the DN button or input will decrease the SETPOINT by
the AMOUNT in parameter #11 immediately, and, after 0.5 second continue to decrease the
SETPOINT at a rate determined by the Deceleration Time (parameter #7). If the circuit is
opened before 0.5 second elapses, the decrease is by the amount in parameter #11 only.
#14 FLOAT / FREEZE
#14
#14
#14
#14
FLOAT / FREEZE
FLOAT / FREEZE
FLOAT / FREEZE
FLOAT / FREEZE
Valid values are 0 or 1. This parameter may be changed while running.
If this parameter is set to 0, the SETPOINT is lost when the DIGIMAX
this parameter is set to 1, the SETPOINT value is stored in non-volatile memory and is
retained while the motor is stopped. (This parameter used to be tied to the MOP function,
but no longer.)
If power is turned off, the SETPOINT is lost if this parameter is set to 0.If this parameter
is set to 1, the SETPOINT will be remembered after power is restored.
#15
#15

#15 DISPLAY SAMPLE RATE

DISPLAY SAMPLE RATE
DISPLAY SAMPLE RATE
DISPLAY SAMPLE RATE
#15
#15
DISPLAY SAMPLE RATE
The valid values for this parameter are 1 to 255. It may be changed while running.
A setting of 1 is a 1 second update period. Higher numbers also reflect the number of
seconds. The higher the number entered, the longer the period before the display changes.
#16

#16 SETUP DURING RUN

#16
SETUP DURING RUN
SETUP DURING RUN
SETUP DURING RUN
#16
#16
SETUP DURING RUN
If the value in this parameter is 0, and the operator presses the PGM/CLR button, an
error code flashes in the display. The error code is "Err15". The PGM/CLR button should
be pressed again to clear the error code and the COM/ACT key to restore the display.
A 1 enables changes while in RUN.
The number can be changed from 1 to 0 while running, but obviously not from 0 to 1.
Page 18
© copyright 1992-1996 by Powertec Industrial Motors
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