KB Electronics KBVF-48 - Manual (Page 8)

Models KBVF-45, 48
Unidirectional Speed Operation – Wire the potentiometer to Terminals “+5V” (high), “SIG1” (wiper),
“COM1” (low), of Terminal Block TB1 on the SIVFR, as described in Section 9.4.2, on page 18. Be
sure Jumper J1, on the SIVFR, is set to the “VOLT” position (factory setting). A jumper must be
installed between Terminals “0V” and “FWD”, of Terminal Block TB1, in order for the drive to operate.
Bidirectional Speed Operation – Wire the potentiometer to Terminals “+5V” (high), “SIG1” (wiper),
“– 5V” (low), of Terminal Block TB1 on the SIVFR, as described in Section 9.4.2, on page 18. Be sure
Jumper J1 (on the SIVFR) is set to the “VOLT” position (factory setting).
1.9 SIGNAL FOLLOWING – An analog signal input can be used to control motor speed instead of the
Main Speed Potentiometer. The drive output will linearly follow the analog signal input. A Signal
Isolator (SIVFR) is built-in on Models KBVF-45,48 and optional on Models KBVF-27, 29.
Models KBVF-27, 29
Wire the isolated* 0 – 5 Volt DC signal input positive lead (+) to Terminal “P2” and the negative lead (–)
to Terminal “P1”. See Section 9.5, on page 19.
*If a non-isolated signal is used, install the SIVFR Signal Isolator (Part No. 9597). The SIVFR accepts voltage (0 to ±2.5
thru 0 to ±25 Volts DC) or current (4 – 20 mA DC) signal inputs. See Section 3.5, on page 10.
Note: For signal following operation, the Minimum Speed Trimpot (MIN) must be set fully counter-
clockwise.
WARNING! The signal input must be isolated from the AC line. Earth grounding signal
wiring will damage the drive and void the warranty. It is highly recommended that the
SIVFR – Signal Isolator and Run/Fault Relay (Part No. 9597) be installed when using signal
following.
Models KBVF-45, 48
Wire the voltage (0 to ±2.5 thru 0 to ±25 Volt DC) or current (4 – 20 mA DC) signal input to Terminals
“SIG1” (+) and “COM1” (–) of Terminal Block TB1 on the SIVFR. For voltage following, be sure Jumper
J1 (on the SIVFR) is set to the “VOLT” position (factory setting). For current following, set Jumper J1
(on the SIVFR) to the “CUR” position. A jumper must be installed between Terminals “0V” and “FWD”,
of Terminal Block TB1, in order for the drive to operate.
2 SAFETY WARNING
Definition of Safety Warning Symbols
Electrical Hazard Warning Symbol – Failure to observe this warning could result in electrical
shock or electrocution.
Operational Hazard Warning Symbol – Failure to observe this warning could result in serious
injury or death.
8
This product should be installed and serviced by a qualified technician, electrician, or elec-
trical maintenance person familiar with its operation and the hazards involved. Proper instal-
lation, which includes installation of the Finger-Safe Cover, wiring, mounting in proper enclosure, fusing
or other current protection, and grounding can reduce the chance of electrical shocks, fires, or explo-
sion in this product or products used with this product, such as electric motors, switches, coils, sole-
noids, and/or relays. Eye protection must be worn and insulated adjustment tools must be used when
working with drive under power. This product is constructed of materials (plastics, metals, carbon, sili-
con, etc.) which may be a potential hazard. Proper shielding, grounding, and filtering of this product
can reduce the emission of radio frequency interference (RFI) which may adversely affect sensitive
electronic equipment. It is the responsibility of the equipment manufacturer and individual installer to
supply this Safety Warning to the ultimate end user of this product. (SW/FSC 5/2005) Be sure to follow
all instructions carefully. Fire and/or electrocution can result due to improper use of this product.