Baldor LD Series Installation And Operating Manual

Baldor LD Series Installation And Operating Manual Manual pdf 23 page image

2-6 Installation MN1269Input Wiring ConnectionsLeft Limit, Right Limit(Pins 8 & 9 for Normally Open, 17 & 18 for Normally Closed)When the Left or Right limit is pulled to common (for normally open switches), output isinhibited in that direction. This function disables the control and the motor will coast to astop. This function can be used for an axis overtravel limit to prevent further operation inthe inhibited direction, but it does allow the drive to back out of the limit. Jumper P1 onthe servo control allows you to select either normally open or normally closed limit inputs.The normal position as shipped is P1 jumper right (pins 1 to 2). If normally closedswitches are to be used, then this circuit must be first activated by placing jumper P1 inthe left position (pins 2 to 3).Note: If P1 is in the left position and limit switches are not used in the application,the control will assume the switch has opened and disable its output in thatdirection, unless the right and left limits (pins 17 & 18) are tied to common.Optional WiringSingle Voltage Input (pin 4 to 2)The servo control can be configured to operate using a single ended positive or negativevoltage command input signal. Move jumper P2 from its right position to its left position(pin 2 to 3).Use the servo control Signal (S) pot to scale the single voltage input. Rotate (A) pot fullcounterclockwise.Current Monitor Interface (Pins 7 & 11).Decoupled Current Sense (DCS) is an analog representation of servo control current.Using an oscilloscope, the output current can be viewed. An analog output voltage of 1volt peak to peak represents approximately 1/10 of peak current. If you have aLD3015HS servo control card and your DCS voltage is 1.5V peak, amplifier outputcurrent is:30 amps peak 1/10 x 1.5 = 4.5 amps outputOR3 x DCS voltage = output current (for LD3015)Figure 2-4 Optional Input Signal WiringServo Systems Co. • 115 Main Road • P.O. Box 97 • Montville, NJ, 07045-0097(973) 335-1007 • Toll Free: (800) 922-1103 • Fax: (973) 335-1661www.servosystems.com