Nexen RSD100 964520 - Manual (Page 15)

1 FORM NO. L-21107-H-0108
Determine which signal type your machine uses and
set the Rotary Selection Switch (See Figure 9a).
Table 
. Run / Stop (Maintained)
When the Run/Stop signal is low, the RSD100 OUTPUT will hold at the STOPPED OUTPUT %. When the Run/
Stop signal transitions from low to high, the RSD100 will begin controlling and the RSD100 PROPORTIONAL
gain will be multiplied by the PROPORTIONAL MULTIPLIER. The duration of the PROPORTIONAL MULTI-
PLIER is set with the START DURATION parameter. When the Run/Stop signal goes low again, the RSD100 will
continue controlling for the duration of the START DURATION. After the START DURATION time has elapsed, the
OUTPUT will change to the STOPPED OUTPUT % at the rate set by the STOPPED BLEED RATE. For this type
of operation, the machine acceleration and deceleration rates should be the same. The START DURATION should
be > or = to the acceleration/deceleration time.
. Start/Stop (Momentary)
Before the Start/Stop pulse, the RSD100 OUTPUT will hold at the STOPPED OUTPUT %. The first time the
Start/Stop pulse transitions from low to high, the RSD100 will begin controlling and the RSD100 PROPOR-
TIONAL gain will be multiplied by the PROPORTIONAL MULTIPLIER. The duration of the PROPORTIONAL
MULTIPLIER is set with the START DURATION parameter. The second time the Stop pulse transitions from low
to high, the RSD100 will continue controlling for the duration of the START DURATION. After the START DURA-
TION time has elapsed, the OUTPUT will change to the STOPPED OUTPUT % at the rate set by the STOPPED
BLEED RATE. For this type of operation, the machine acceleration and deceleration rates should be the same.
The START DURATION should be > or = to the acceleration/deceleration time.
. Start Only (Momentary)
Before the Start Only pulse, the RSD100 OUTPUT will be either at 100% or 0% depending on the position of the
dancer arm. When the Start Only pulse transitions from low to high, the RSD100 will transition through a stop
(STOPPED BLEED RATE can be set fast) and then begin controlling and the RSD100 PROPORTIONAL gain
will be multiplied by the PROPORTIONAL MULTIPLIER. The duration of the PROPORTIONAL MULTIPLIER is
set with the START DURATION parameter.
. encoder (Pulses)
For those applications where a Start / Stop signal is not available, an encoder driven from the machine’s drive line
can be used to sense machine motion. Before the first Encoder pulse is detected, the RSD100 OUTPUT will hold
at the STOPPED OUTPUT %. When the first Encoder pulse is detected, the RSD100 will begin controlling and
the RSD100 PROPORTIONAL gain will be multiplied by the PROPORTIONAL MULTIPLIER. The duration of the
PROPORTIONAL MULTIPLIER is set with the START DURATION parameter. When the machine stops and the
Encoder pulse is not present for more than 5 seconds, the OUTPUT will change to the STOPPED OUTPUT % at
the rate set by the STOPPED BLEED RATE. Minimum and maximum encoder pulse voltage levels are defined in
the SPECIFICATIONS section.
Rotary Switch Position Machine State Signal
1 Start / Stopped (Maintained)
 Start / Stopped (Momentary)
 Run / Stop (Maintained)
 Start / Stop (Momentary)
 Start Only (Momentary)
 Encoder (Pulses)