Rockwell Automation 1771-QDC, D17716.5.87(Passport) CLAMP AND EJECT MODE - Manual (Page 47)

Configure the QDC Module's
Inputs and Outputs
Chapter 3
3-14
12. Return your ejector to the fully retracted position.
You may now download your adjusted values to the QDC module using
the MCC download procedure presented earlier in this chapter.
Determine Values for the Clamp Pressure Sensor (if used)
To complete the configuration for your clamp pressure sensor, enter
minimum and maximum pressures and corresponding signal levels from
manufacturer’s specifications in MCC31 - MCC34. Most applications
require no further spanning. If your application requires greater accuracy,
follow the procedure below:
1. Release system pressure to obtain minimum pressure at the clamp.
2. Read the pressure gauge at the clamp.
3. Record this minimum pressure value (usually 0000) on line 13 of
Worksheet 3-E for MCC31.
4. With your programming terminal, read the signal level returned in
SYS36 (Pro-Set 600 address N41:188) from your pressure sensor.
You may wish to zero your pressure sensor at this time.
5. Record this signal level on line 15 of Worksheet 3-E for MCC33
(should be at min signal if you zeroed your pressure sensor in step 4).
ATTENTION: Use extreme caution during the next steps
because you stress the hydraulic system to its maximum rated
pressure. Loose fittings or faulty components could fail, causing
possible damage to equipment and/or injury to personnel.
6. Re-torque all hydraulic connections and joints before proceeding.
7. Boost system pressure to obtain maximum pressure at the clamp.
Max system pressure may be obtained by positioning the clamp at
full open while keeping the clamp open valve in the maximum open
position. This forces the cylinder to press against the mechanical
limits of its travel and builds max system pressure. Also, if you
wish, you may move the clamp to its full forward (mold close)
position, and allow full system pressure to force the mold closed.
8. Read the pressure gauge at the clamp (maximum system pressure
should be read at full open or full close) while the clamp is
mechanically bound from moving further.
9. Record this maximum pressure on line 14 of Worksheet 3-E for
MCC32.