3UG4633-1AL30 SIEMENS, 3UG4633-1AL30 Datasheet - Page 26

• Manufacturer Part Number: 3UG4633-1AL30
• Description: RELAY, DIGITAL MONITORING, VOLTAGE
• Manufacturer: SIEMENS
• Series: 3UGr

Specifications of 3UG4633-1AL30

• Power Consumption: 2W
• Supply Voltage Max: 275V
• Relay Mounting: DIN Rail
• Control Voltage Type: AC / DC
• Contact Termination: Screw
• External Depth: 86mm
• External Length / Height: 110mm
• External Width: 22.5mm
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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3UG Monitoring Relays for Electrical and Additional Measurements
Speed monitoring
Overview
Function
The underspeed monitoring relay operates according to the
principle of retriggerable OFF-delay. During the time (value) set
on the front side, another pulse must arrive at input IN1 or IN2 to
ensure that the output relay remains picked up. The monitoring
relay evaluates the rising edge of the signal, i.e. a continuous
signal is also recognized as a missing pulse. If the retrigger
pulse does not arrive, indicating a reduction in speed, the output
relay drops. In order to be able to start an operating mechanism,
the output relay remains picked up during the ON-delay time T,
even if the speed is still below the set value (motor starting
override time). The first pulse must come within this time.
The monitoring relay can be used for all functions where a
continuous pulse signal needs to be monitored (belt travel
monitoring, completeness monitoring, passing monitoring,
clock-time monitoring).
Speed monitoring without memory (NO MEMORY)
When the speed of the operating mechanism drops below the
set value, the output relay drops. It picks up again when the
speed is greater than the set value plus the fixed hysteresis.
7/86
Monitoring Relays
A1/A2
Siemens LV 1 T · 2007
2
1
4
1
2
3
4
Set value
Hysteresis
Actual value
Output relay
T
3
NSB0_00965
© Siemens AG 2007
The 3UG30 51 monitoring relay is used together with a sensor to
monitor operating mechanisms for underspeeding.
Speed monitoring with memory (MEMORY)
When the output relay drops, this state remains stored even
when the speed reaches a permissible value again. The stored
state can be ended by a control signal at the reset terminal or by
interrupting the supply voltage for at least 200 ms.
A1/A2
5
2
1
4
5
1
2
3
4
6
Set value
Hysteresis
Actual value
Output relay
Reset
Storage (MEMORY)
3
T
6
NSB0_00966
6
T