Rockford Systems, LLC
30
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SSC-1500 Part Revolution Solid-State Control
SECTION 3—INSTALLATION OF COMPONENTS
PRIOR-ACTION STATION
(continued)
Continuous-On-Demand
Mode of Operation
According to ANSI Standard B11.1-1988 Paragraph 4.13.3.3 Operating Modes for
Continuous-On-Demand
operations:
A control system with a CONTINUOUS-ON-DEMAND mode of operation:
• Shall be capable of employer supervision. (Key-operated selector switch.)
• Shall require a setup and reset action or decision by the operator in addition to the selection of the CONTINUOUS-ON-DEMAND mode of
operation before stroke initiation. (Prior-action push button.)
• Shall have a timer to prevent initial activation or reactivation of CONTINUOUS stroking if the time expires between the initiating signals.
• Shall require a setup and reset action or decision by the operator in addition to the selection of the CONTINUOUS-ON-DEMAND mode of
operation when any STOP signal prevents successive strokes.
Automatic Single Stroke
Mode of Operation
According to ANSI Standard B11.1-1988 Paragraph 4.13.3.3 Operating Modes for
Automatic Single Stroke
operations:
A control system with an AUTOMATIC SINGLE STROKE mode of operation:
• Shall be capable of employer supervision. (Key-operated selector switch.)
• Shall require a setup and reset action or decision by the operator in addition to the selection of the AUTOMATIC SINGLE STROKE mode of
operation before stroke initiation. (Prior-action push button.)
• Shall have a timer to prevent successive automatic single strokes if the time expires between the initiating signals.
• Shall require a setup and reset action or decision by the operator prior to stroke initiation when any STOP signal prevents initiation of
successive automatic single strokes.
Operator-Maintained (Two-Hand-Maintained or Foot-Maintained)
Continuous
Mode of Operation
According to ANSI Standard B11.1-1988 Paragraph 4.13.3.3 Operating Modes for
Operator-Maintained Continuous
operations:
A control system with an Operator-Maintained Continuous mode of operation:
• Shall require a prior action or decision by the operator in addition to the selection of the OPERATOR-MAINTAINED CONTINUOUS mode of
operation. The slide shall stop when the actuating means is released.
Function Tests of Two-Hand Control
Two-hand control is furnished with the SSC-1500 press control and can be used as a point-of-operation device. If it is going to be used as a point-
of-operation device, the following function tests should be run before operating the press. These tests should be done at every operator, die, or
shift change, and every time maintenance is performed.
1.
Verify the two-hand control complies with the following before stroking the press.
a. Are the palm buttons protected against accidental operation (with ring guards or fabricated shields)?
b. Are the palm buttons separated by enough distance or configured to require the use of both hands to actuate the press?
c. Are the palm buttons at the proper safety distance based on the stopping time of the press on the downstroke? (See pages 27 - 28
for details.)
d. Are the palm buttons fixed in position?
(Continued on next page.)
