KB Electronics Installs on end of KBVF - Manual (Page 7)

“The Right Control for Your Application.” 12095 NW 39 Street, Coral Springs, FL 33065-2516
Telephone: 954-346-4900; Fax: 954-346-3377
KB Electronics, Inc. www.KBelectronics.com
SIVFR Signal Isolator and Run/Fault Relay (Part No 9597) SIVFR Signal Isolator and Run/Fault Relay (Part No 9597) SIVFR Signal Isolator and Run/Fault Relay (Part No 9597) SIVFR Signal Isolator and Run/Fault Relay (Part No 9597)
Supplemental Information for Installation and Operation Manual Part No. A40264 Supplemental Information for Installation and Operation Manual Part No. A40264 Supplemental Information for Installation and Operation Manual Part No. A40264 Supplemental Information for Installation and Operation Manual Part No. A40264
(A42132) – Rev. B01 – 9/18/2006 – Z3017B01 Page 7 of 8
3 3 3 3 TRIMPOT ADJUSTMENTS TRIMPOT ADJUSTMENTS TRIMPOT ADJUSTMENTS TRIMPOT ADJUSTMENTS
The SIVFR contains multi-turn trimpots which are factory set for most applications. See Figure 1, on page 1, for the location of the
trimpots.
The SIVFR is factory set for Voltage Following Operation to run the motor from zero speed to full speed with a 0 to ±5 Volt DC analog
signal input. For Current Following Operation (4 – 20 mA DC), see Section 3.2.
Some applications may require readjustment of the trimpots in order to tailor the drive for a specific application. The trimpots may be
readjusted as described below.
WARNING! If possible, do not adjust trimpots with the main power applied. If adjustments are made with the main
power applied, an insulated adjustment tool must be used and safety glasses must be worn. High voltage exists in this drive.
Fire and/or electrocution can result if caution is not exercised. Safety Warning, on page 1 of the SIVF manual, must be read and
understood before proceeding.
3.1 MAXIMUM SPEED (MAX): The MAX Trimpot is factory set to run the motor at full speed with a ±5 Volt DC analog signal input. For
a higher analog signal input (±25 Volt DC max.) rotate the MAX Trimpot counterclockwise. For a lower analog signal input (±2.5 Volt
DC min.) rotate the MAX Trimpot clockwise. See Figure 15.
Note: The MAX Trimpot on the KBVF has been factory set to an Upper Frequency Limit of 60 Hz (50 Hz, for 50 Hz motors). If the
application requires a slightly higher maximum frequency (up to 66 Hz), rotate the MAX Trimpot on the KBVF to full clockwise
position.
3.2 SIGNAL OFFSET (OFFSET): The OFFSET Trimpot is used to recalibrate the drive for Current Following Operation. The SIVFR will
run the motor from zero speed to full speed with a 4 – 20 mA DC analog signal input. For a higher minimum speed setting, rotate
the OFFSET trimpot clockwise. For a lower minimum speed setting rotate the OFFSET Trimpot counterclockwise. See Figure 16.
Note: The MIN Trimpot on the KBVF is not functional when the SIVFR is installed.
Figure 15
Maximum Speed Trimpot
Figure 16
Offset Trimpot
+ +
4 4 4 4 RUN/FAULT RELAY RUN/FAULT RELAY RUN/FAULT RELAY RUN/FAULT RELAY
The Run/Fault Relay Output Contacts are located at TB2 of the SIVFR and can be used to turn on or off equipment or to signal a warning
if the drive is put into the Stop Mode or if a fault has occurred. See Figure 17.
See Table 2 for the drive operating condition and Run/Fault Relay Contact status.
For normally open contact, set Jumper J2 on the SIVFR to the “NO” position. For normally closed contact, set Jumper J2 on the SIVFR to
the “NC” position. See Figure 18.
Figure 17
Run/Fault Relay Connection
Figure 18
Run/Fault Relay Output Contact Selection
Normally Open Contact
(J2 Installed in “NO” Position)
(Factory Setting)
Normally Closed Contact
(J2 Installed in “NC” Position)