Servicing - Tapeswitch GS-120 Technical Manual

Release 7/2009 Ver. 1.0
5.2

SERVICING

The GS-120 system is designed to be serviced at unit
level. There are no user-serviceable parts within the
units.
When a safety-critical fault occurs in the GS-120 system
or in the machine interface, the machine will be
disabled. It is first necessary to establish whether the
fault is in the GS-120 system or in the machine
interface.
Use Tables 1 and 2 in section 2.4 and Table 3 below to
identify faults within the GS-120 system.
STATE OF
UNIT
INDICATORS
Amber LED
not lit.
Red LED
Emitter
lit steady
Red LED
flashing
Amber LED
not lit
Red LED
fully lit (no
obstruction
of curtain)
Receiver
Yellow LED
flashing
Yellow LED
Steady
Table 3 – Fault Table
NOTE: The emitter and receivers are not matched
pairs. They become mated pairs only upon
power up. It is not necessary to replace both
units, should one become faulty.
TAPESWITCH CORPORATION
100 Schmitt Boulevard
Farmingdale, New York 11735
CAUSE(S) ACTIONS(S)
No power
Connect power
to unit
Test input
Close test input
is open
Emitter unity Replace emitter
faulty unit
No power
Connect power
to unit
Units out
Check alignment
of alignment
Test input
open on
Check emitter
emitter
red LED
Emitter unit
faulty
No power on Check emitter
emitter unit amber LED
Receiver
Remove short
outputs are
between outputs
shorted
Reconnect hand
Light Curtain
held blanking unit
has been
and re-configure
programmed
to correct setting
Technical Manual: GS-120 Light Curtain Systems
5.3 MAINTENANCE
There are no mechanical, electrical or optical
adjustments necessary.
cleaning of the windows on the emitter and receiver
units, GS-120 systems are maintenance free. Use a
soft, lint-free cloth and an anti-static cleaner.
Do not use solvents of any kind.
41
Apart from occasionally
Phone: 631-630-0442
Fax: 631-630-0454
www.tapeswitch.com