LMI chroma+scan 3155, Руководство пользователя

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6.4 Encoder
The user must provide a suitable encoder. The requirements are:
•
Differential quadrature output (maximum 18 V)
•
+5 VDC power supply input
The encoder interface on the Master provides the following:
•
X4 quadrature decoding
•
Maximum 300 kHz count rate
•
+5 VDC encoder voltage output
•
Maximum 200 mA encoder current output
•
Input voltage range: -8 to 13V
•
Differential voltage: +/- 200mV
We recommend using RS422/RS485 encoders instead of TTL encoder for reliable
performance. Additionally, the user should choose an encoder with the appropriate
number of pulses per revolution to match the transport mechanism and speed.
6.5 Wiring and Connections
Refer to the FireSync Network User Manual for details on connecting the power
supplies, encoder, Master, Slave, Station, and sensors in a scan 3x00 sensor
system.
6.5.1 Safety Interlock
Safety Interlock is a signal controlled by the Safety input on both the Master and the
Slave. Safety- must be connected to the 48VGND and must be energized by
+48 VDC before any lights in the system will receive power. If this input is disabled,
although the sensors are powered and running, the light sources are disabled.
Systems with Safety Interlock require:
•
Safety interlock-enabled sensors
•
FireSync Sensor Cordsets Version 2
•
An external switch connecting the Safety Interlock signal at the Master to +48
VDC
Refer to the FireSync Network User Manual for details on wiring the Safety Interlock
circuit.