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DATA SHEET D-431
SIRC
BIPOLAR SIGNAL ISOLATOR
for use with the
KBRC-240D Full-Wave 4-Quadrant
Regenerative Drive
Provides isolation
between non-isolated signal sources
and the KBRC-240D
SIRC (Part No. 8842)
STANDARD FEATURES
• Isolated Switching: Provides isolation for PLC open
collector or contact switching.
• Isolated +15V Power Supply: Used to power a transducer or to supply voltage for potentiometer operation.
• Enable: Used to start and stop the control electronically
with a contact closure.
• Accepts a Wide Range of Voltage Input Signals.
• Power On LED.
TRIMPOT ADJUSTMENTS (Multi-Turn)
• Maximum Speed (MAX)
• Offset (OFFSET)
OPTIONAL ACCESSORY
• Auto/Manual Switch (Part No. 9487): Selects a signal
input from either the SIRC Signal Isolator or the Main
Speed Potentiometer.
DESCRIPTION
The SIRC (Part No. 8842) is used with the KBRC-240D FullWave 4-Quadrant Regenerative Drive to isolate, amplify and condition DC voltage signals from any source (tach-generators, transducers, PLCs and potentiometers). It also provides an isolated input to
control motor direction and an isolated power supply for transducer
or potentiometer operation. All input connections are isolated from
the AC line and motor wiring. The SIRC installs easily on the inside
front cover and is wired with quick-connect terminals.
The SIRC features include a power on LED, barrier terminal
block to facilitate wiring, adjustable multi-turn trimpots (MAX,
OFFSET) and an enable circuit to start and stop the control electronically with a contact closure.
An optional accessory for use with the SIRC and KBRC-240D
is an Auto/Manual Switch (Part No. 9487) which selects a signal
input from either the SIRC Signal Isolator or the Main Speed
Potentiometer.
GENERAL PERFORMANCE SPECIFICATIONS
Parameter
Input Voltage Range (Volts DC)
Specification
1
0 - ±10 thru ±25
Maximum Speed Trimpot (MAX) Range
(with 10 Volts DC Input) (% Base Speed) 2
70 - 110
Offset Trimpot (OFFSET) Range
(with 0 Volts DC Input) (% Base Speed) 3
0 - ±50
4.85
[123.2]
0.15
J1
MAX
Operating Temperature Range (ºC)
ENABLE
0 - 45
Note: (Factory Settings): (1) 0 - 10, (2) 100, (3) 0
A Complete Line of Motor Drives
CON2
F+
F-
CON1
SIG COM EN
SIRC
Thermal Drift (millivolts per ºC)
TB1
0.1
EN
Input/Output Linearity (%)
2.80
[71.1]
OFFSET
5
COM
Potentiometer Operation (kΩ)
SIG
25
-15V
Power Supply (±15V) Maximum Load
Current Rating (milliamps DC)
+15V
Dry Contact or
Open Collector
PWR
Forward and Reverse Input Switch Types
MECHANICAL SPECIFICATIONS (Inches / [mm])
and CONTROL LAYOUT
SIRC (Part No. 8842) & KBRC-240D WITH AUTO/MANUAL SWITCH CONNECTION DIAGRAM
TO START/STOP SWITCH
OFFSET RACC FACC
GRAY
SIRC
RELAY
T+
TB3
J10
NO
NC
J5
LED BOARD
Y
10V
G
R
B
TCL J8
NTCL
TRQ SPD
J6
CON1
1.7A
2.5A
5A
7.5A
10A
EN COM COM +15V -15V
PWR ON
S/L
J4
OL
REV
EN
FWD
EN
NL
J7
A90
A180
T7
T50
BLACK
T-
CL
BLUE (SIG)
TCL
DB
ON
WHITE (-15V)
RESP
STOP
ORANGE
IR
15V
SIG START RET STOP
MAIN SPEED POTENTIOMETER
VIOLET (+15V)
MAX FWDCL REVCL
J3
EN
GREEN
RTS
J9
J11
CTS
AUTO/MANUAL SWITCH
CON1
SIG COM EN
OFFSET
PWR
J1
230V 115V
J2
115V 230V
KBRC
BROWN
L2B
L1A
L1B
MAX
TB1
TB2
F-
F1
L2A
F2
YELLOW
CON2
F+
F+
F-
M1
M2
L1
L2
-15V
SIG
COM
EN
ENABLE CIRCUIT CONNECTION
VOLTAGE FOLLOWING CONNECTION
COM
EN
+15V
-15V
SIG
COM
EN
J1
SIG
ENABLE
-15V
J1
+15V
TB1
TB1
SIG
0 - ±10 VDC
ENABLE
+15V
ENABLE
J1
TB1
V
REMOVE JUMPER
ENABLE
SWITCH OR RELAY
(CLOSE TO START)
COM
REMOTE POTENTIOMETER CONNECTIONS
-15V
SIG
COM
+15V
EN
TB1
-15V
SIG
EN
TB1
TB1
LOW (WHITE)
LOW (WHITE)
LOW (WHITE)
WIPER (ORANGE)
COM
WIPER (ORANGE)
REMOTE
POTENTIOMETER
UNIDIRECTIONAL FORWARD
WIPER (ORANGE)
REMOTE
POTENTIOMETER
REMOTE
POTENTIOMETER
HIGH (VIOLET)
HIGH (VIOLET)
HIGH (VIOLET)
ENABLE
+15V
J1
EN
ENABLE
COM
J1
SIG
ENABLE
-15V
J1
+15V
BIDIRECTIONAL
UNIDIRECTIONAL REVERSE
REVERSING CONTACT CONNECTIONS
-15V
SIG
COM
EN
TB1
FORWARD
REVERSE
SIG
COM
EN
REMOTE
POTENTIOMETER
TB1
LOW (WHITE)
FORWARD
REVERSE
HIGH (VIOLET)
OPEN COLLECTOR
-15V
TB1
LOW (WHITE)
WIPER (ORANGE)
+15V
WIPER (ORANGE)
ENABLE
+15V
J1
EN
ENABLE
COM
J1
SIG
ENABLE
-15V
J1
+15V
LOW (WHITE)
STOP
REMOTE
POTENTIOMETER
FORWARD
REVERSE
HIGH (VIOLET)
FORM C CONTACTS
KB ELECTRONICS, INC.
12095 NW 39th Street, Coral Springs, FL 33065-2516 • (954) 346-4900 • Fax (954) 346-3377
Outside Florida Call TOLL FREE (800) 221-6570 • E-mail – [email protected]
www.kbelectronics.com
WIPER (ORANGE)
REMOTE
POTENTIOMETER
HIGH (VIOLET)
SWITCH OR PLC
(A42109) – Rev. A – 6/2001