GE DS3800DLIB Digital I/O card
Electronic Viscosity – Provides passive damping at lower speeds. The ZETA6104 ships with electronic viscosity disabled. You must use the DELVIS command to enable electronic viscosity, and optimize it for a specific application (see procedure on page 29). The first two damping circuits—anti-resonance and active damping—work at speeds greater than three revolutions per second (rps). Electronic viscosity works at speeds from rest up to three rps. The ZETA6104 will automatically switch between the damping circuits, based upon the motor’s speed. The next drawing shows the effective range of each circuit.
Above 3 rps, the ZETA6104 automatically
enables either anti-resonance or active damping—but not both at the same time. They are mutually exclusive. If active damping is set to zero (DACTDPØ), the ZETA6104 enables anti-resonance. If the DACTDP command is set to any setting other than zero, the ZETA6104 enables active damping. This relationship is shown in the next drawing—notice in the drawing that anti-resonance can also be disabled with a command (DARENØ). Differences between anti-resonance and active damping are described next; refer to the block diagram below.
Common problem
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