Dynamatic CES, Инструкция по эксплуатации, Страница: 31 / 38

31
3A. Older controls have two EPROM’s provided with
each control.
a. One EPROM protects certain parameters that
are adjustable from the keypad from accidental
changes. These parameters are:
26 Maximum Speed
27 Line Voltage
28 Clutch Current
29 Brake Current
72 Number of Speed Feedback Periods
73 Baud Rate
78 Gear Box Ratio
79 Tach Pulses Per Revolution
80 Potentiometer Selector
b. One EPROM allows the above parameters to be
changed in the field if necessary. Each of the
above parameters should be verified as correct
for a particular installation and changed if found
to be incorrect.
3B. Newer controls have but one EPROM that protects
all changeable parameters except those from 30
through 41, 45 and 46. To change any of the
protected parameters the keypad must first be
unlocked using the password provided in separate
instructions.
4. Note that resolver must be connected when in test
mode or you will get a 222 fault. Enter the test
mode of the DMR by proceeding as follows:
a. Padlock the main motor of the press in the OFF
position.
b. Turn the Press Control OFF.
c. On the DMR keypad, enter the test mode as
follows:
1) Press the Top key. This will activate the top
row of the display.
2) Press the "6" and the "0" keys for parameter
No. 60.
3) "60" and "OFF" will appear in the top row of
display.
4) Press the up arrow (↑)
5) “60" and "ON" will appear in the top row of
display, indicating the test mode has been
activated.
d. Turn the CES circuit breaker to the OFF
position.
e. Remove the following incoming leads from the
terminal block and tape ends: 320, 321, 334,
302, 319 and 348.
f. Install the following jumpers: 302 to 320, 301 to
334 (to put 115 volts across the clutch contactor
ON signal), 15 to 16 (across CR2) and 26 to 27
(across the TD contact).
g. Turn the CES circuit breaker to the ON position.
h. The DMR will remember that it is in the test
mode. "60 On” will reappear in the top
row of display.
i. The test mode will be indicated by the "Test"
LED on the keypad and display board.
5. Enter the clutch test mode.
a. While in the test mode, the clutch test mode can
be entered by setting the clutch test mode
parameter No. 61 to "ON". Proceed as follows:
1) Press the Bot key. This will activate the
bottom row of the display.
2) Press the "6" and the "1" keys for parameter
No. 61.
3) "61 c1 OFF" will appear in the bottom row
of the display
4) Press the up arrow (↑).
5) "61 c1 ON" will appear in the bottom row,
indicating that the clutch test mode has been
activated.
b. The clutch current will go to its maximum value
as set by the Current Limit potentiometer.
c. Verify that the Clutch Current Limit
potentiometer limits the clutch current to the
proper value for the size of the mechanical unit.
Adjust the Current Limit potentiometer only if
necessary for the proper amps, +/-1amp.
d. To return the current to zero:
1) Press the down arrow (↓).
2) "61 cl OFF" will appear in the bottom row
of the display.
WARNING: Note that if the clutch current is left
ON for more than the setting of the Clutch
Current on Too Long Fault, a clutch current fault
will result, and it will take ten minutes before the
fault can be reset. The clutch current fault is
adjustable from 3 to 20 seconds.
e. Leave the clutch test mode by entering the
brake test mode.
6. Enter the brake test mode.
a. While in the clutch test OFF node set the brake
test mode parameter No. 62 to ON. Proceed as
follows:
1) Press the "6" and the "2" keys for parameter
No. 62.
2) "62 br OFF" will appear in the bottom
row of the display.
3) Press the up arrow (↑).
4) "62 br ON" will appear in the bottom
row, indicating that the brake test mode has
been activated
b. The brake current will go to its maximum value,
as set by the Brake Current Limit potentiometer.
c. Verify that the Brake Current Limit potentiometer
limits the brake current to the proper value for