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REOVIB MFS 268 UL/CSA
Operating Instructions
4
ELEKTRONIK
t ON
t OFF
Sensor
Feeder
ON
OFF
ON
OFF
Soft Start
Soft Stop
2.1 Track control
The
output
can
be
switched ON and OFF
from a track component
sensor,
using
internal,
adjustable time delays (ton
and toff).
The queue of components
rises above and drops
below the track sensor
position.
The
controller
output switches on when the sensor cannot detect product and a switch-on time delay has elapsed. The
output is switched off when product is detected and a switch-off time delay has elapsed (FULL displayed
in the LED window). Gaps in the product feed cause resetting of the time delay. The time will always be
precise from the last or first component, respectively. The ON and OFF time delays are set in the pro-
gramming menu. The first decimal point in the display blinks to indicate that an internal timer is running.
An additional “Sensor-Time-out“ timer is started when the feeder switches on. This can be set (30...240
sec.) to switch off the feeder if no product is sensed in the time out period. The status relay indicates that
the feeder is not running and the LED window displays ERROR and SE alternately. This function is op-
tional and must be selected in the Track Settings Menu with function EEn = 1.
2.2 Operating with two speeds (2 set points for coarse/fine switching)
Coarse/Fine control can be used instead of track control (Menu C 003). The second set point is activated
through the same sensor input that is used for track control. Either contacts or a 24 VDC signal can be
used to change the set point from coarse to fine. The second set point is activated, immediately, by apply-
ing a 24 V signal
(The track control function is invalid)
2.3 Control inputs and output
2.3.1 Enable input
External switch or 24 VDC signal voltage.
External control function to switch the power output ON or OFF e.g. Networking of several controllers
from a central PLC.
2.3.2 Sensor input for track control
Sensor for monitoring the queue of components on the track or an input for switching to the second set
point 24 VDC (PNP).
2.3.3 External set point
The feeder amplitude set point can be provided from and external, analog 0...10 V, DC, 0(4)...20 mA, or a
10 kR Potentiometer. Parameter ESP in Menu C003 must be set to I, for an external set point source to
be used.
If a potentiometer is used, must additionally parameter "POT" set to I. (not on 16A IP 20 units).
Setting the minimum output value when external set point = 0:
Before changing the ESP parameter to accept an external set point source, the minimum value can be
adjusted by using the cursor keys, on the front panel, and this will remain when the ESP is changed over
from 0 to I.