Nexen RSD200 964531 - Manual (Page 11)

11 FORM NO. L-21161-E-0108
The RSD200 determines the start/stop state of a machine through the Start/Stopped Signal Input. The RSD200 was
designed to accommodate many different types of machine state signals.
The following figure and descriptions detail the variations of Start/Stopped signals that the RSD200 accepts.
After choosing the appropriate signal, set the rotary switch on the RSD200 printed circuit board per Table 2.
S
taRt
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ignal
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eleCtiOn
(6) Encoder
(Pulses)
(5) Start Only
(Momentary)
(2) Start / Stopped
(Momentary)
(1) Start / Stopped
(Maintained)
0%
100%
Machine Speed
Pulse Time (t) must be > 100ms -t-
Time
Figure
Start / Stopped Signal (maintained)
When the Start/Stopped input signal is maintained low, the RSD200 assumes the machine is stopped. When the
Start/Stopped input signal transitions to a maintained high, the RSD200 algorithm will begin adapting to account
for the roll’s diameter and inertia, and in the case of the RSD200P, web tension. The web must be in motion when
this signal goes high otherwise the Adaptive Gain will increase to maximum. After the Start/Stopped signal transi-
tions back to low, the Adaptive Gain will return to a constant value (See OPERATIONS section).
Start / Stopped Signal (momentary)
When the Start/Stopped input signal pulses high, the RSD200 algorithm will begin adapting to account for the
roll’s diameter and inertia, and in the case of the RSD200P, the web tension. The web must be in motion when this
signal goes high otherwise the Adaptive Gain will increase to maximum. After the Start/Stopped signal pulses high
a second time, the Adaptive Gain will return to a constant value, because the RSD200 assumes the machine has
stopped (See OPERATIONS section).
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