PowerTec Digimax, Инструкция по установке и эксплуатации

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Page 23
DIGIMAX
® ® ® ® ®
Manual
There are many options with the
DIGIMAX DIGIMAX
DIGIMAX DIGIMAX DIGIMAX
®
. This means that there are items of
information which must be decided before the set up and operation can take place. Some
options which are to be used must be connected electrically, and others involve the actions
of the software. The software options are conveyed by the parameters.
Some decisions about how the
DIGIMAX DIGIMAX
DIGIMAX DIGIMAX DIGIMAX
®
is to be used must be made before the unit
is installed, since connections must be made electrically on the rear terminal strips.
It is better to gather together certain information ahead of time, since it affects
parameter settings, and, if the information is not gathered together first, the programming
process will be delayed. Before attempting to program the parameters, gather the following
information for each unit to be programmed:
1. Maximum nameplate data (from the motor nameplate).
2. Relationship between motor speed and process speed.
3. What the display is to read.
4. Ramp times (accel and decel rates) necessary for the process.
5. Whether it is to be a MASTER or a SLAVE.
6. Relationship between MASTER and SLAVE motors.
7. If a preset speed is to be used, what the value is.
8. Whether MOP or JUMP mode is needed.
9. Where and how the SETPOINT is to be entered.
10. Whether an RS-422 communications link is to be used.
After this information has been gathered, it is relatively easy to program the
DIGIMAX DIGIMAX
DIGIMAX DIGIMAX DIGIMAX
®
to perform the desired functions. The following sections deal with the various steps in
programming the unit in approximately the order in which they will be faced. Refer to the
parameter tables on pages 14 and 20 and to the referenced sections.
SET UP CHOICES SET UP CHOICES
SET UP CHOICES SET UP CHOICES SET UP CHOICES
For set-up purposes, there are options which are used before the unit is actually placed
in operation. The
DIGIMAX DIGIMAX
DIGIMAX DIGIMAX DIGIMAX
®
may be set up locally or remotely, the setup or normal mode
must be chosen, and it can display the commanded or actual speed or ratio.
LOCAL OR REMOTE LOCAL OR REMOTE LOCAL OR REMOTE LOCAL OR REMOTE LOCAL OR REMOTE
Front Panel Alternate Key Function (page 12)
Parameter # 8 (page 17)
Parameter # 19 (page 19)
Choose a mode of operation which determines where the commands will originate:
LOCAL -- Press ALT-9 on the keypad. The
DIGIMAX DIGIMAX
DIGIMAX DIGIMAX DIGIMAX
®
is operated by param-
eters entered via the keypad. Speeds or ratios are entered via the keypad. The RS-422
comm link may read values, but not change them. All rear panel control inputs are active.
REMOTE -- Press ALT-9-1 on the keypad. The
DIGIMAX DIGIMAX
DIGIMAX DIGIMAX DIGIMAX
®
will get its SETPOINT
and setup commands from the RS-422 communications link and ignore all commands from
the keypad except the REM/LCL, CMD/ACT, and ALT keys. The rear panel inputs are all
active. An indicator LED in the front panel display indicates the REMOTE mode is active.
KEYLOCK -- This mode can only be initiated through the parameters or the RS-422
connection. All front panel commands are ignored except ALT, CMD/ACT and PGM/CLR.
This mode can only be exited through the parameters or through the RS-422 link. Rear panel
4.0 SETUP 4.0 SETUP
4.0 SETUP 4.0 SETUP 4.0 SETUP AND OPERA
AND OPERA
AND OPERA AND OPERA AND OPERATION
TION
TION TION TION