Rockford Systems Safeguarding Devices Catalog

DETECT-A-FINGER ® DROP-PROBE DEVICES
RKC-OOO AND RKC-001 SERIES (CONTINUED)
RKC-500 SERIES
ADDITIONAL COMPONENTS
If the machine that is being safeguarded with an RKC- or DAF-series
drop-probe device has single-stroke capability, additional components
may be required to trip or cycle the machine.
ADDITIONAL COMPONENTS
PART NO.
RCL-001
RCL-002
RCL-003
RCD-140
RCL-043
RCD-071
DESCRIPTION
50 lb Pull Air Cylinder – 1-1/8” Bore x 1” Stroke
100 lb Pull Air Cylinder – 1-1/2” Bore x 1” Stroke
200 lb Pull Air Cylinder – 2” Bore x 2” Stroke
1/4” Monitored Dual-Solenoid Air Valve Assembly
1/4” Filter-Regulator-Lubricator Assembly
1/4” Air Lockout Valve
RCL-001
RCL-002
RCL-003
FOR SAFEGUARDING RESISTANCE-TYPE SPOT WELDERS
The RKC-500 series Detect-A-Finger ® drop-probe device reduces
accidents at the point of operation where an operator’s fingers can
enter. The key components of this device are a sensing probe module
with the rod shaped to fit over or around the workpiece, and a control
module. When the operator initiates a machine cycle, the sensing probe
is released and drops by gravity over or around the workpiece. If the
operator’s fingers are still in the hazard area, the sensing probe will not
reach its preset position and will not allow the spot welder to start its
cycle. If there are no obstructions to prevent the sensing probe from
dropping, when it reaches its preset position, the control unit will allow
the machine to cycle.
The compact design of the sensing probe module allows it to be
attached to the welder arm. The drop-probe stroke is 15/8”.
CTD-011
Foot Switch – Hinged Flap
Rocker-Arm Welder
Air-Operated Welder
Note: For push-type or longer stroke air cylinders, please consult the factory.
SINGLE-STROKE TRIP-CONTROL SYSTEM
If the machine that is being safeguarded with an RKC- or DAF- series
drop-probe device obtains its force from a flywheel but does not have a
single-stroke mechanism, a component package can be furnished. For
best safety practices, choose the control box and component package
plus an appropriate sized air cylinder from above.
CONTROL BOX NO. FPF-000-F PLUS
COMPONENT PACKAGE NO. FNF-011 CONSISTING OF:
PART NO.
RCD-140
RCL-043
CTD-062
CML-002
CMK-103
DESCRIPTION
1/4” Dual-Solenoid Air Valve
1/4” Filter-Regulator-Lubricator Assembly
Air Pressure Switch
Cam and Strap Assembly
Limit Switch Assembly
RCD-140
RCD-071
RCL-043
CTD-011
CMK-103
Press-Type Resistance Welder
To Welder
Controller
To
Power
115 V AC
Detect-A-Finger ®
Sensing Probe
Assembly
Sensing Probe
Detect-A-Finger ®
Control Box
Foot Switch
TYPICAL APPLICATIONS
Transformer
(if required)
Rocker-Arm-Type Resistance Welder
Main
Power
Disconnect
Switch
To Welder
Controller Detect-A-Finger ®
Control Box
Detect-A-Finger ® Sensing- Probe
Assembly
Foot Switch
Sensing
Probe
CTD-011
Foot Switch
HOS-4000
Self-Latching Emergency Stop Palm Button
For fused disconnect switches or magnetic motor starters, please refer
to Catalog SFM. Call us toll-free at 1-800-922-7533 or visit our Web
site at www.rockfordsystems.com for the latest catalog.
FPF-000-F
CML-002
This Detect-A-Finger ® drop-probe assembly may be mounted either to
the moving member of a welder (upper arm), like the rocker-arm type
illustrated above, or may be mounted to a fixed part of a welder, like the
press-type illustrated above. Depending on the type of welder, a singlestage
or a two-stage foot switch may be required.
The Detect-A-Finger ® may also be applied to mechanical foot pedaltype
welders. To convert from a mechanical operation, the mechanical
pedal must be removed and replaced with an air cylinder to operate
the arm and foot switch. The cylinder bore and stroke (push- or pulltype)
can be determined from actual machine measurements, and
the method and location of attachment to the welder linkage. The air
cylinder can be controlled by a three-way normally closed 115-V AC
solenoid air valve. Adjustable flow control valves may be employed to
smooth the welder arm movement, and an air filter-regulator-lubricator
assembly may also be required. See the previous page for these
components.
CTD-062
HOS-4000
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