Mechanical Reversing Starter - SCHIEBEL AB3 Operating Instructions Manual

Operating Instructions for Actuators Type AB with Control Unit
OM-ENGLISH-ABCSC.V1.2-16xx-V2.02-2023.04.27
Resistance of common ground vs. earth: . . . . . . . . . . . . . . . . . . . . . . . typ. 330 k
Resistance of common ground vs. earth (floating version): . . . . . . > 10 M
Capacitance of common ground vs. earth: . . . . . . . . . . . . . . . . . . . . . . typ. 100 nF
Maximum allowed voltage of common ground vs. earth: . . . . . . . . max. 40 Vs
Fuse (Fuse FL1, see picture 52, page 33): . . . . . . . . . . . . . . . . . . . . . .1 A slow
Ground potential is the common ground of the controller and the analog inputs and outputs.
The auxiliary voltage output can be set in menu P6.5 (see Operating Instructions for SMARTCON Control
Units).
The power-save mode is defined as follows:
• No power supply (the controller is powered exclusively through the 24 V auxiliary voltage input).
• The backlight of the LCD display switches off automatically.
• No additional hardware options included (Profibus Interface, DeviceNet interface, relay board, etc. . . ).
• Binary outputs and the mA output are not enabled; when activating, the respective currents must be
added to the total current consumption.

15.6 Mechanical reversing starter

By default all phases of the motor are switched by a mechanical reversing contactor. The mechanical reversing
contactor is both electrically and mechanically interlocked to prevent unintented cross circuits.
Depending on the engine size results in the following assignments:
size
mW4
mW5
mW7
mW11
mW22
The mechanical life (switching cycles) of the reversing starter can be roughly estimated with the help of the
following diagram and the rated current (motor current):
Typ power of the motor (with 400V 3-phase current)
open-loop control
(operational mode S2)
K09 3kW
K12 5,5kW
D18 7,5kW
D25 11kW
D38 22kW
Figure 67
2
(Littelfuse 454 NANO Slo-Blo
closed-loop control
(operational mode S4)
1,5kW
3kW
5,5kW
7,5kW
11kW
15 Technical data
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37