KEY SWITCH FUNCTIONS
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i401’s DB-15 User I/O connector allows system integrators or end-users to integrate I401 safety features
into their control system. I401’s key switch, shutter, and remote interlock functions serve to enable or
disable DC power to I401’s RF drive. Without DC power, the RF driver cannot supply RF energy to the
resonator, causing the CO2 gas to remain in a zero-energy state. I401 status indicators provide users
with a quick visual indication of the laser’s operational status. All power to the laser’s RF board is
removed when the RDY indicator is Off (Laser Ready output open).
Key switch functions
OEM lasers
On OEM lasers, the RDY LED illuminates on DC power-up (when the Remote Interlock input is enabled)
and five seconds later, DC power is applied to the RF driver. When the Shutter Open Request input is
inactive (SHT indicator Off) only tickle pulses are applied to the laser. PWM Command signals are
enabled only when voltage is applied to both Shutter Open Request and Remote Interlock inputs (INT
LED green, RDY LED On, and SHT LED On). Over temperature faults are reset by removing and then re-
applying DC power after the laser has cooled. Remote interlock faults are not latched; the RDY LED il-
luminates yellow as soon as the interlock circuit is closed (when the INT LED turns from red to green)
and five seconds later lasing is enabled.
Although a Remote Reset/Start Request input is not required to reset OEM faults, it can be used to
inhibit (disable) lasing. Disable the laser by applying a voltage in the range of ±5–24 VDC to Pin 2, the
Remote Reset/Start Request input. Removing voltage allows power to reach the RF driver and begins a
five-second countdown after which lasing is enabled (RDY LED illuminates yellow). The RF driver is
disabled as long as voltage is applied to Pin 2.
Your control system can monitor the laser’s ready status on the User I/O connector by connecting your
system’s input between Pin 8, Laser Ready, and Pin 13, Output Common (see Figure 4-16).
The Laser Ready output closes when the laser is enabled (RDY LED illuminated yellow), indicating that
lasing is possible. The output is open (RDY LED off) when lasing is disabled. After the Laser Ready
output closes, a five-second delay occurs before lasing is enabled.
Shutter functions
An internal electromechanical shutter is installed on all i401 lasers. Lasing is enabled when the shutter is
open (SHT LED illuminated blue) and disabled when the shutter is Closed (SHT LED off).
For i401 OEM lasers in automated systems, shutter actuation is provided by the Shutter Open Request
signal via Pin 10 on the User I/O connector. To use this feature, apply a voltage in the range of ±5–24
VDC to Pin 10, Shutter Open Request. This input signal causes the SHT LED to illuminate (provided the
RDY indicator is On) and opens the physical shutter to allow lasing. Removing voltage from the Shutter
Open Request input, causes the physical shutter to close and block the beam path, extinguishing the
SHT lamp and allowing only tickle signals to reach the tube.
Your control system can monitor the laser’s shutter status on the User I/O connector by connecting your
system’s input to Pin 14, Shutter Open, and Pin 13, Output Common (see Figure 4-16). The Shutter Open
output closes when a Shutter Open Request signal is present (SHT LED illuminated blue), and the Laser
Ready output is closed (RDY LED is On). The output is open (SHT LED Off) when the Shutter Open
Request signal is removed, or the Laser Ready output is open (RDY LED is Off).
Remote interlock functions
Содержание i401
Страница 1: ...ENGINEERED BY SYNRAD i401 Laser User Manual...
Страница 43: ...I401 LABEL LOCATIONS PAGE 43 i401 label locations Figure 2 1 Hazard label locations...
Страница 49: ...DECLARATION OF CONFORMITY PAGE 49 Declaration of conformity Figure 2 2 i401 Declaration of conformity...
Страница 97: ...I401 OUTLINE MOUNTING DRAWINGS PAGE 97 Figure 4 29 I401 outline mounting dimensions mounting feet removed...
Страница 98: ...I401 PACKAGING INSTRUCTIONS PAGE 98 i401 packaging instructions Figure 4 30 i401 packaging instructions...
Страница 132: ...INDEX PAGE 11...