STBVP6-RB1E02 BANNER ENGINEERING, STBVP6-RB1E02 Datasheet - Page 6

• Manufacturer Part Number: STBVP6-RB1E02
• Description: Safety; Duo-Touch; Run Bar System; LED Indicator; 2 NC Safety Contacts
• Manufacturer: BANNER ENGINEERING

Specifications of STBVP6-RB1E02

• Function: Proximity
• Primary Type: Photoelectric
• Sensing Mode: Through-Beam
• Technology: Photoelectric

DUO-TOUCH
6
The following example illustrates the use of
the formula to calculate separation distance for
a part-revolution clutch machine. This example
uses 0.50 seconds as a typical value for T
and 0.02 seconds for T
In this example, both hand controls must be
located no closer than 36" from the nearest
hazard point.
Hand controls must be mounted a safe
distance from moving machine parts, as
determined by the appropriate standard.
It must not be possible for non-qualified
persons to relocate them. Failure to
establish and maintain the required
safety distance could result in serious
injury or death.
Example Separation Distance (D
K = 63" per second,
T
T
T
D
s
r
h
s
P/N 131634 rev. B
= 0.50 seconds (measured by a
= K x (T
= 0.035 seconds
= 0.02 seconds
= 63" (0.50 + 0.035 + 0.02)
= 35"
stop-time measuring device)
WARNING . . .
Location of Touch
Button Controls
Calculation
s
+ T
r
+ T
h
:
h
)
®
Run Bar with STB Buttons
s
s
)
Separation Distance
Both hand controls must be located far enough away from the nearest hazard point that the
operator cannot reach the hazard with a hand or other body part before the hazardous motion
ceases. This is the “separation distance,” and may be calculated as follows.
For Part-Revolution Clutch Machinery
Where the machine and its controls allow the machine to stop motion during the
hazardous portion of the machine cycle, use the following formula.
For Full-Revolution Clutch Machinery
Where the machine and its controls are de s igned to complete a full machine cycle, once
ac ti vat ed, use the following formula:
For both formulas:
NOTES:
1. T he OSHA-recommended hand speed constant K has been determined by various studies, and although these studies indicate
2. T
3. T
Ds = the separation distance in inches,
K = 6 3" per second (the hand speed constant currently accepted by OSHA;
T
T
T
T
speeds of 63"/sec to over 100"/sec, they are not conclusive determinations. The employer should consider all factors, including
the physical ability of the operator, when determining the value of K to be used.
factor to account for brake system deterioration. If the stop-time of the two redundant machine control elements is unequal, the
slower of the two times must be used for calculating the separation distance.
when using electronic or electromechanical (i.e. powered) hand controls. In this example, STB response time = 0.02 seconds.
s
s
r
h
m
h
= t he stop time (in seconds) of the machine, measured from the ap p li c a t ion of the
is usually measured by a stop-time measuring device. If the specified machine stop time is used, add at least 20% as a safety
= t he response time of the slowest hand control (from the time when a hand dis e n-
is usually insignificant for purely mechanical switches. However, T
= t he maximum time (in seconds) the machine takes to cease all motion after
“stop” signal to the final ceasing of all motion, including stop times of all relevant
control el e m ents, and measured at maximum machine velocity (see NOTE 2)
= the response time of the Safety Module as measured from the time a stop
gag e s that control until the switch opens; see NOTE 3)
see NOTE 1, below)
is signalled by either hand control. (Banner AT.. Series IIIc two-hand control
Safety Modules approx. 0.035 seconds)
it has been tripped. For full-revolution clutch press es with only one engaging
point, T
the crankshaft. For full-revolution clutch presses with more than one engaging
point, T
T
N = number of clutch engaging points per revolution
T
cy
m
= (1/2 + 1/N) x T
= time (in seconds) necessary to complete one revolution of the crank s haft
where:
m
m
is equal to the time nec es sary for one and one-half revolutions of
is calculated as follows:
cy
D
D
s
s
= K x (T
= K x (T
Banner Engineering Corp. • Minneapolis, MN U.S.A.
www.bannerengineering.com • Tel: [phone]
s
m
+ T
+ T
h
r
should be considered for separation distance calculation
r
+ T
+ T
h
h
)
)