Dynamatic 015-000248-2002, Instruction Manual

Page: 42 / 68

EC-2000-CES MANUAL
42

MICRO INCH REVERSE MODE (SET UP)
The controller will be in the micro inch reverse mode if the following conditions exist:
1. Enable signals are present
2. No fault is present
3. Reverse is not present
4. Micro Inch is present
5. Inch is not present
6. Clutch contactor ON signal is present
7. Brake contactor is closed
8. The main motor is programmed to run in the reverse direction
When in the micro inch reverse mode, the controller functions in the following manner.
A clutch ON command with enables closes the clutch contactor. Upon initiation of the run mode,
the control reference signal ramps up from zero at the inch acceleration rate parameter C.3, until
the drive reference equals programmed reference parameter F.1). When the enables are
released the control reference ramps down according to the stop deceleration rate Parameter C.4
to zero set point is reached. At the time the enable is removed, the clutch timer is initiated. After
the delay time is reached, the clutch contactor is dropped out by control removing clutch on or the
internal brake delay timing out (parameter D.10).
The micro inch reverse mode will be indicated by simultaneous display of the "Inch L" and
“Reverse" on the keypad display.

FAULT MODE
Two fault indicators designed into the controller are the Fault display and Fault LED’s. While in
the fault mode, the fault is displayed on the top line of the display regardless of the display
assignment for that line, The fault can also be read at parameter G.1.
The fault mode is entered if any fault is generated. Once the fault mode has been entered by the
initiation of a fault, the controller remains in the fault mode until the fault mode is remotely reset
by the press control issuing a fault reset command. The fault mode can be reset locally from the
controller keypad. Call up Parameter G.6, Clear Faults, and using the Down Arrow (↓) change to
enable. Press enter and faults are cleared. The last four prior faults are stored at parameters G.2
through G.5. These are read only.
Note: If you clear faults with the keypad when there is no fault, fault history is cleared.
This function does not occur with the reset input allowing the clear fault button to be pressed with
no fault without clearing fault history.
In the fault mode, the current fault and last four faults are stored, indicated and can be
transmitted to the press control by the controller on request. (see serial port section) In the case
of all faults, the press is stopped. There are various levels of faults; and the urgency with which
the press is stopped differs with the different levels of faults. The four faults that the CES
controller will diagnose are as follows: Stop Main Motor Fault, Stop Now Fault, Stop-On-Top-Fault
and Control Fault. These are fully in sections 10 & 12.