Field Service Manual December 2003
Page 78 of 276
The electric diagram of the vacuum pump box is seen in next picture.
The Siemens Motor Starter 3RW3034-1AB14.
Description.
Electronic motor starters are build for soft start and soft stop of asynchronous motors.
A thyristor bridge takes over during start and stop.
While running you have a normal relays working.
Build to drive pumps ,compressors ,transport beld .
Specifications:
Start time t
R on
can be adjusted from 0s to 20s (we use 5 seconds start time)
Start voltage can be adjusted from 40% to 100% (we use 40% min)
Stop time t
R off
can be adjusted from 0s to 20s (we use 0 seconds stop time)
3 phase Voltages: 50/60Hz 200 to 460VAC(+-10%).
Power supply: 110VAC to 230VAC 50/60Hz.
Starts/hour: 20 starts/hour
Ambient Temperature: -25°C to +60°C.
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