LINK Systems OmniLink 5000 - Manual (Page 101)

7.9
Section 7.2.6 Flywheel Speed
The R/D MODULE provides an isolated analog input in order for the press control to measure and display
flywheel speed (spm). If configured for motor speed adjustment, it can also provide an analog output for
setting the spm command signal to the motor drive. This interface replaces the manually adjusted speed
pot and allows the stroking speed to be directly entered into the operator terminal and automatically sent
as an analog command (0 to 10 vdc) to the drive. The module also provides an analog input for motor
current (% load). In order to interface to eddy current drives with ac tach feedback (Figure 7.12 and 7.13)
or dc drives with 0-10 vdc feedback (Figure 7.14), the 5000-6B module provides four switches (accessed
by removing the module from the card rack). These switches allow the following settings:
Switch Function Default
S4 Closed if tach is referenced to gnd on eddy current drive Closed
Open if tach wires drive a bridge rectifier on drive
S3 Closed for eddy current drives (AC tach input) Closed
Open for 0-10vdc input
S2 not used Closed
S1 Closed for 330 ohm load for current input Open
Open for 15k ohm load for current input
Figure 7.12 Interface to Eddy Current with Ground
Reference Tach