Tapeswitch GS-120 Technical Manual page 51

Release 7/2009 Ver. 1.0
5.0 FUSES
The BSRUA-2 is equipped with two fuses, F1 and F2.
Both fuses are located on the top of the Din Rail
enclosure. These fuses are secured with a spring-
loaded twist mechanism. They are easily accessed with
a common flathead screw driver. Fuse F1 is a 1 amp,
250 Vac, quick-blow type, and is intended to protect
from potential shorts and surges on the high-voltage
side of the interface unit. Fuse F2 is a 2 amp, 250 Vac
quick-blow type, and is intended to protect from shorts
and surges in the low-voltage, 24 Vdc circuitry of the
interface unit. It is recommended that external fuses be
used to prevent the safety output contacts from welding
(as described in section 4.1.1 of the main document).
6.0 TEST INPUT
The BSRUA-2 interface provides a test input for each
light curtain. This input is used to check the interface
between the photo-electric safety system and the
machine. It electrically simulates an obstruction in the
corresponding light curtain. While in the normal or run
mode, the test input is jumpered (closed). It is opened
and closed when used for testing.
control logic can verify that the safety output relays did,
in fact, cycle, thereby exposing any fault before the next
machine cycle.
This test should be conducted during a safe part of the
machine cycle, or at the end of the cycle. While this
input is open, power is removed from the corresponding
light curtain (both emitter and receiver). Once the test
input is closed, power is restored. The emitter and
receiver may take a few seconds to re-synchronize, and,
consequently, the safety outputs may take a few
seconds to resume their normal state. The device
connected to the test input should have a dry contact
which is closed during the run mode and momentarily
opened during the test mode.
The test inputs are located at terminals 7 and 8 for light
curtain number one and terminals 19 and 20 for light
curtain number two. The test input on terminals 19 and
20 is active for the TWO light curtain configuration
ONLY. This input will have no effect in the single light
curtain configuration. If these inputs are not used,
jumpers should be installed on these terminals. (This
feature is seldom used and, therefore, removable
jumpers are installed at the factory).
TAPESWITCH CORPORATION
100 Schmitt Boulevard
Farmingdale, New York 11735
7.0
The machine's
Connecting
51
Technical Manual: GS-120 Light Curtain Systems
TECHNICAL SPECIFICATIONS
Specifications
110 VAC
240 VAC
Supply Voltages
24 VDC
Positively guided, forced
Type
contact
Contacts Two normally open (NO)
Safety
Outputs 4.0 A resistive load @ 240VAC
Rating 4.0 A resistive load @ 24VDC
5 Hz maximum rate
Fusing 3.0 A recommended, by user
6.00 in. (152mm) long,
Dimensions
2.88 in. (73mm) wide,
4.65 in. (118mm) high
Weight
Approximately 2 lbs.
Enclosure Rating
IP 20
Enclosure Mounting
DIN EN 50 022-35
Type Captive terminals
Terminals
Capacity Two 2.5mm sq. (AWG 14)
Data Tolerance
+ 10%
- 15%
+ 10%
- 15%
Phone: 631-630-0442
Fax: 631-630-0454
www.tapeswitch.com