INSTALLATION AND OPERATING INSTRUCTIONS MODEL SIVF KB Part No. 9474 – Signal Isolator for KBVF Controls See Page 1 Pending See Safety Warning on Page 1 The information contained in this manual is intended to be accurate. However, the manufacturer retains the right to make changes in design which may not be included herein. A COMPLETE LINE OF MOTOR DRIVES © 1999 KB Electronics, Inc.
TABLE OF CONTENTS SECTION Page i. Safety Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . II. Installation Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . III. Connections to the SIVF . . . . . . . . . . . . .
i. SAFETY WARNING! PLEASE READ CAREFULLY This product should be installed and serviced by a qualified technician, electrician or electrical maintenance person familiar with its operation and the hazards involved.
FIGURE 1 – CONTROL LAYOUT 2
I. INTRODUCTION Thank you for purchasing the SIVF Signal Isolator (P/N 9474). KB Electronics, Inc. is committed to providing total customer satisfaction by producing high quality products that have been manufactured to the highest standards and techniques in the industry. The SIVF is engineered with state-of-the-art surface mount technology (SMT) incorporating advanced circuitry in a relatively small and user friendly package, making it convenient to operate and easy to install.
TABLE 1 – GENERAL PERFORMANCE SPECIFICATIONS Voltage Following Operation Input Range (V DC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 – 2.5 thru 25 Current Following Operation Input Range (mA DC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 – 20 Potentiometer Operation (KΩ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Output Voltage at P2 (V DC) . . . . . . . . . . . . . . . . . . . . .
FIGURE 2 – SIVF CONNECTION DIAGRAM 5
FIGURE 3 – SIVF MOUNTING DIAGRAM (Shown Mounted to Model KBVF-24D) 6
FIGURE 4A – SIVF MECHANICAL SPECIFICATIONS (Inches / mm) (Shown Mounted to 1/2HP KBVF – With Optional Finger-Safe Cover) 7
FIGURE 4B – SIVF MECHANICAL SPECIFICATIONS (inches / mm) (Shown Mounted to 1HP Model KBVF) 8
B. MOUNTING THE SIVF ONTO THE KBVF See figure 3, SIVF Mounting Diagram. See figures 4A and 4B, SIVF Mechanical Specifications, on pages 7 and 8. The SIVF is installed onto the KBVF using (2) two 6-32 X 1/2” screws provided. Note: The screws are a combination head type which allow the use of a readily available #1 or #2 phillips or slotted head screwdriver. Note: Before installing the SIVF be sure the wiring to the KBVF has been completed. See section II, Installation Instructions, on page 3 1.
Note: A connection must be made between FWD and COM or REV and COM in order for control to operate. Jumper shown installed in FWD direction. See Table 2, Terminal Block Wiring Information, on page 9. Note: The MIN and MAX trimpots on the KBVF are non-operational after the SIVF is installed. A. Signal Following In this mode, a signal source is used to vary motor speed. i. Voltage Following – Uses a voltage source to vary motor speed.
Be sure the positive (+) signal is connected to “SIG” terminal and the negative (-) is connected to the “COM” terminal. Figure 6 – Current Following Connection (Jumper J1 in “CUR” Position) When a 4mA DC signal is applied, the motor will operate at the minimum set speed (set by the MIN trimpot on the SIVF). When a 20mA DC signal is applied, the motor will operate at the maximum set speed (set by the MAX trimpot on the SIVF) B. Potentiometer Operation – Uses a potentiometer to vary motor speed.
nals of the SIVF. See figure 8, Unidirectional Operation. Figure 8 – Unidirectional Operation Note: A SPDT switch or contact can be used as an enable to turn control on and off electronically. Safety Warning! Do not use FWD-STOP-REV contacts as a safety disconnect since they are not fail-safe. Use only the AC line for this purpose. D. Bidirectional Operation i.
Making the connection between Figure 10 – Open Collector Connection (Forward-Stop-Reverse) “COM” and “FWD” terminals will operate the motor in the forward direction. Making the connection between the “COM” and “REV” terminals will operate the motor in the reverse direction. If no connections are made to either FWD or REV terminals, the motor will be in the STOP state. See figure 9, Switch Connections, on page 12. If the motor runs in the opposite intended direction, interchange FWD and REV connections.
A. B. C. 14 Calibrating the SIVF for Voltage Following (Jumper J1 in “VOLT” position): 1. Select FWD or REV direction. 2. Apply the maximum voltage input signal. 3. Monitor KBVF output and adjust the MAX trimpot on SIVF for the desired maximum setting. 4. Apply the minimum voltage input signal. 5. Monitor KBVF output and adjust the MIN trimpot on SIVF for the desired setting. Calibrating the SIVF for Current Following (Jumper J1 in “CUR” position): 1. Select FWD or REV direction. 2.
– ADDENDUM I – Instructions to Modify the Optional Finger-Safe Cover (KB P/N 9473). If using the optional finger-safe cover on the KBVF, it needs to be modified to install the KBVF. WARNING: HIGH VOLTAGE IS PRESENT WHILE LEDs ARE ILLUMINATED. Before removing the finger safe cover, or wiring the KBVF, disconnect all power to the KBVF and wait until “PWR” and “ST” LEDs are no longer illuminated.
FIGURE 11 – FINGER-SAFE COVER 16
– NOTES – 17
V. LIMITED WARRANTY For a period of 18 months from date of original purchase, KB will repair or replace without charge devices which our examination proves to be defective in material or workmanship. This warranty is valid if the unit has not been tampered with by unauthorized persons, misused, abused, or improperly installed and has been used in accordance with the instructions and/or ratings supplied.
