Synrad Pulstar P100 Series, Руководство оператора

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technical reference
3
14 Synrad Pulstar p100 operator’s manual
User I/O connections
Input signals
A total of four user inputs allow control of Pulstar lasers. Remote Interlock , Shutter Open Request , and
Remote Reset/Start Request inputs are optoisolated and bi-directional, allowing for positive or negative
polarity signal inputs. These three signals also share a common return connection, Input Common , which
is separate from chassis ground to completely isolate control signals for optimal EMI performance. The
fourth input,
PWM Input , is optoisolated and has a separate return, PWM Return , to fully isolate PWM
signals from the other three user inputs. Note that throughout this manual, input voltage levels are speci-
fied with respect to their corresponding return line.
Pin 1 PWM Return
Connect the return side of your PWM Command signal to this pin. Refer to Table 3-5 for input
circuit specifications.
Pin 2 Remote Reset/Start Request input
Apply a positive or negative voltage (±5–24 VDC) with respect to Pin 11, Input Common , to
disable the laser. The laser remains disabled while voltage is applied to this pin. Removing voltage
from the
Remote Reset/Start Request pin causes the laser’s RDY lamp to illuminate, indicating
that lasing is enabled . Because all DC power is removed from the RF driver when this input is ac-
tive, no lasing can occur until voltage is removed from Pin 2. Refer to Table 3-5 for input circuit
specifications.
Pin 3 Remote Interlock input
Apply a positive or negative voltage (±5–24 VDC) with respect to Pin 11, Input Common , to
enable lasing. If your system does not use a remote interlock, this pin must be connected to a
voltage source in the range of ±5–24 VDC. Refer to Figure 3-9 for a diagram showing how the
Remote Interlock input is factory-jumpered on the
Quick Start Plug
. Because all DC power is re-
moved from the RF driver when this input is inactive, no lasing can occur until voltage is applied
to Pin 3. Refer to Table 3-5 for input circuit specifications.
Remote Interlock faults (
INT
LED illuminates red) are not latched on OEM p100 lasers. Re-
applying a voltage to Pin 3 enables the
RDY
indicator and lasing is possible, provided the Shutter
Open Request signal is also present (
SHT
indicator illuminated).
Pin 9 PWM Input
Connect your PWM Command signal to Pin 9. This pulse width modulated Command signal
controls laser output in relation to modulation frequency and duty cycle. Refer to
Controlling laser
power in this chapter for further information on laser control signals. Connect the PWM signal
source return to Pin 1, PWM Return . See Table 3-5 for input circuit specifications.
Pin 10 Shutter Open Request input
Apply a positive or negative voltage (±5–24 VDC) with respect to Pin 11, Input Common , to
enable lasing. If your system does not supply a Shutter Open Request signal, then this pin must
be connected to a voltage source in the range of ±5–24 VDC. Refer to Figure 3-9 for a diagram
showing how the
Shutter Open Request input is factory-jumpered on the
Quick Start Plug
. Be-
cause all DC power is removed from the RF driver when this input is inactive, no lasing can occur
until voltage is applied to Pin 10. See Table 3-5 for input circuit specifications.