NOLATRON MODEL TB-1 START BAR
The Nolatron TB-1 machine start bar is a complete OSHA compliant ergonomic two hand starting system. It increases productivity while operator fatigue and stress are decreased. It features a 16 gauge steel NEMA 12 enclosure, guarded hand sensors and an anti-defeat ("anti-tie-down") control with front panel indicator lights. When properly installed, the TB-1 start bar meets OSHA requirements of section 1910.217(6) which covers two-hand controls.
Features:
Anti-tiedown - The TB-1 start bar requires an operator to have both hands on start switches in order to start machine operation. This minimizes the possibility of the operator starting the machine while his hand is in the work area.
Control Reliability - The TB-1 start bar is designed to meet the OSHA classification of “control reliability” as defined in Sec. 1910.217(b)(13).
Redundant Output Contacts - The TB-1 start bar uses double “positive guided” output relays. Each relay is checked for proper status prior to beginning a machine cycle.
Flexible Mounting - The TB-1 can be mounted horizontally above or below the point of operation. It can also be mounted vertically beside the point of operation.
Pricing:
| Part#: | Price: | |
| TB-1 | Start bar with optical hand sensors | $599.00 |
| TB-1A |  Start bar with field effect sensors |
$599.00 |
| TB-1AE |  Start bar with field effect sensors and emergency stop switch |
$672.00 |
| TB-1AETS | Start bar with field effect sensors, emergency and top stop switches |
$744.00 |
Operation:
| The start bar's internal anti-defeat safety
control performs a test prior to each machine cycle. This is done to ensure that the
output relays and electronic circuits are functioning properly. The
"Ready" light on the front of the bar will then turn on indicating that the bar
is ready to be started. You must concurrently touch both hand sensors in order to
start the machine cycle. The "Output" light will then turn on, indicating
that the load has energized. If either start sensor is continuously energized
("tied down"), another machine cycle cannot be started.
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| Momentary Output -
To begin a machine cycle, both hand sensors must be touched within a window of
time.* The load will then energize as long as the hand sensors are held or the
optional Reset switch is momentarily opened. The Reset switch must be closed in
order for the bar to be ready for the next machine cycle. * This time is factory set at .5 seconds and is adjustable.
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| Maintained Output - An
optional Hold switch can be wired into the start bar to provide a maintained output. When
the Hold switch is closed, the load will stay energized even after the start switches are
released. The Hold switch must not close until the machine passes the pinch-point, and it
should remain closed for the rest of the machine cycle. If the optional Reset switch is opened at any point during the machine cycle, the outputs will de-energize and the control will reset. Both start switches must be released and the Reset switch must be closed before another machine cycle can be started. |
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Wiring:
| Wiring to the supply. |
| Connect a green ground wire to the
terminal identified as "GROUND". This wire must be connected to the main ground terminal of the machine and must not be fused. Connect a black (hot) wire to the terminal
identified as "115 VAC". Connect a white (neutral) wire to the terminal identified as "COMMON". |
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| Wiring to a 115v load. |
| Install a jumper wire between the
terminal marked "115 VAC" and the output contact terminal to the left of it.
Connect a black load wire to the other output contact terminal. Connect a white load wire to the terminal marked "COMMON". To switch other voltages, do not install the jumper and do not connect any load wires to the terminal marked "COMMON". The output can then be treated as a "dry contact". |
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| Wiring the Reset switch. |
| An optional switch can be used to
reset the start bar when a machine cycle is completed. Remove the jumper wire from the terminals marked "RESET" prior to installing the wires connected to the reset switch. One terminal is shared with the optional Hold switch (if installed). The Reset switch is normally closed and will reset the control
when it is opened. |
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| Wiring the Hold switch. |
| An optional Hold switch can be
used to allow the load to remain energized after the hand switches are released.
This feature is useful for applications that have long machine cycles. The Hold switch is normally open and must not be closed until the operator can no longer reach into the point of operation. Once the Hold switch is closed, it should remain closed for the rest of the machine cycle. The Hold switch circuit does not become functional until the machine cycle has started. The Hold switch is connected to the terminals marked "HOLD". One terminal is shared with the reset circuit. Do not remove the reset jumper wire unless the optional reset switch is being used. |
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Parts list for TB-1
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Specifications:
Physical Dimensions |
31.5" x 3.25" x 2.75"
(L x W x H) 6.25" high measured to top of guard |
| Weight | 9.25 lbs. |
| Power Requirements | 115 VAC, 50/60 Hz, 1 watt standby, 8 watts output energized |
| Output Load Rating | 8 Amps @ 120 VAC (Switching) 6 Amps @ 120 VAC (Continuous) |
| Output Life | 10 million cycles minimum
(mechanical) 500,000 cycles (electrical @ 120VAC / 8 amps) |
| Switches must be activated within: | Factory set at .5 seconds |
| Terminal Strip | Accepts 14 - 22 gauge stranded wire |
| Start Switches | Model TB-1 Electronic infrared photo sensors, approx. 80ms. response time. Model TB-1A, TB-1AE,
TB-1AETS |
| Temperature Range | 20 - 140 degrees F |
| Origin | Made in U.S.A. |
Call us at (717) 564-3398 or E-Mail us for more information.