4B HTAS1V34 Manuale operativo - Pagina 14
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OPTION 1: SENSOR DETECTING TARGET ON PADDLE -
Under normal running conditions, the target bolt passes through the sensor's field and a pulse is sent to
the speed relay. If the chain becomes slack, the target bolt will drop below the field and the pulses will
stop, causing the relay contact to change state.
1 to 3 Inches
Over 3" Ensures
Sensor Does Not
Detect Steel Flight
Steel Flight
OPTION 2: SENSOR DETECTING STEEL FLIGHT -
Under normal running conditions, the steel flight passes through the sensor's field and a pulse is sent to
the speed relay. If the chain becomes slack, the steel flight will drop below the field and the pulses will
stop, causing the relay contact to change state.
OPTION 3: SENSOR WAITING TO DETECT STEEL FLIGHT -
Under normal running conditions, the steel flight is out of the sensor's field, so no pulses are sent to the
speed relay. If the chain becomes slack, the steel flight comes into the sensor's field and a pulse is sent
to the speed relay, causing it to change state.
PULSE
Target or Bolt
(3/8 Inch Diameter)
1 to 3 Inches
1 to 3 Inches
1"
PAGE 14
To Speed Relay
PULSE
NO PULSE
Speed Relay
(SR2V5-1)
To Speed Relay
To Speed Relay