4.2 Receiver Specifications
Response Time
Dependent on the number of sensing beams; for the response time, see
EDM Input (Available with 8-Conductor Models)
+24 V dc signals from external device contacts can be monitored (one-
channel or no monitoring) via the EDM terminal in the receiver.
High Signal: 10 to 30 V dc at 30 mA typical
Low Signal: 0 to 3 V dc
Recovery Time
Blocked to Clear (OSSDs turn On): Dependent on the number of beams
and whether the first beam (CH 1 synchronization beam) has been
blocked. For specific values, see
on page 16.
CSSI Status Output Switching Capacity
Current-sourcing (PNP) solid-state output, 24 V dc at 100 mA maximum
Output Signal Switching Devices (OSSDs)
Two redundant solid-state 24 V dc, 0.5 A max. sourcing OSSD
(Output Signal Switching Device) safety outputs (Use optional
interface solutions for ac or larger dc loads)
ON-State voltage: > Vin – 1.5 V dc
OFF-State voltage: 0 V dc typical, 1 V dc maximum (no load)
OFF-State, maximum allowed external voltage: 1.5 V dc
2
Maximum load capacitance: 1.0 µF
Maximum cable resistance to load: 5 ohms per wire
Maximum leakage current: 50 µA (with open 0 V)
OSSD test pulse width: 200 µs typical
OSSD test pulse period: 200 ms typical
Switching current: 0 A minimum; 0.5 A maximum (per OSSD)
Fault Output Switching Capacity (Available with 8-Conductor Models)
Current-sourcing (PNP) solid-state output, 24 V dc at 70 mA
maximum
Scan Code Input (Available with 8-Conductor Models)
High Signal: 10 to 30 V dc at 30 mA typical
Low Signal: 0 to 3 V dc
Scan Code Selection: 8-pin/8-wire connection only (5-pin systems are
Scan Code 1)
•
Select Scan Code 1 by connecting pin 8 (violet wire) to 0 V dc or
leaving it open (not connected)
•
Select Scan Code 2 by connecting pin 8 (violet wire) to +24 V dc
Status Indicators
Amber Run Mode Indicator: indicates the System is ready for
operation
Bi-color (red/green) Status indicator: indicates general system and
output status
Bi-color (red/green) Alignment Status indicators: indicate condition
(clear or blocked beam) of a defined group of beams (±35 mm of
indicator)
7-Segment Diagnostic indicator (1 digit): indicates proper operation,
scan code, error code, or total number of blocked beams
Ambient Light Immunity
10,000 lux at 5° angle of incidence
Strobe Light Immunity
Totally immune to one Federal Signal Corp. "Fireball" model FB2PST
strobe
4.3 Emitter Specifications
Emitter Elements Wavelength
Infrared LEDs, 850 nm at peak emission
Fault Output Switching Capacity
Current-sourcing (PNP) solid-state output, 24 V dc at 70 mA maximum
Position ID Input (Available with 8-Conductor Models)
Input connected to +24 V dc to identify emitter's position as a stand-
alone or the first (master) in a cascade system.
Status Indicators
One bi-color (Red/Green) Status Indicator: indicates operating mode,
lockout or power Off condition
7-Segment Diagnostic indicator (1 digit): indicates proper operation,
scan code, or error code
Scan Code Input (Available with 8-Conductor Models)
High Signal: 10 to 30 V dc at 30 mA typical
Low Signal: 0 to 3 V dc
Scan Code Selection: 8-pin/8-wire connection only (5-pin systems are
Scan Code 1)
•
Select Scan Code 1 by connecting pin 8 (violet wire) to 0 V dc
or leaving it open (not connected)
•
Select Scan Code 2 by connecting pin 8 (violet wire) to +24 V
dc
2
The maximum voltage allowed on the OSSDs in the OFF-state without a lockout occurring. This voltage may occur, for example, from the input structure of a safety relay module
connected to the EZ-SCREEN LS OSSDs.
EZ-SCREEN
®
LS Safety Light Screen
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