7
Section 4 Continued…
7. RELAY FUNCTI ONS
The unit may be user configured for several relay options.
Ensure that the necessary hardware options are installed i.e. 1 or 2 relays. The relays are solid state
devices. These relays are rated at a maximum of 100mA at 24vdc. Connections to the relays are via
terminal connections close to the devices designated 1 & 2 = relay 1 contacts 3 & 4 = relay 2 contacts.
These relays are volt-free contacts unless specified
Three modes of relay control are selectable along with 3 patterns of operation as detailed.
a. Standard Batcher (MENU> WEI GHMODE< code 4: [ 4000x] )
This allows a batching sequence utilising a single relay control.
Press the MODE key the display will briefly prompt TRIP1” and then the existing value will be shown. To
clear existing data first press the ZERO key to clear the value, the far left digit will show “E” indicating that
the display is in keyboard mode. Press the PRI NT key to increment the least significant digit and press the
TARE key to shift the digit to the left i.e. to input a value of 4000 press the PRI NT key 4 times and then
press the TARE key 3 times.
Repeat the above if Trip 2 is installed.
Ensure that the indicator shows zero by selecting the ZERO or TARE key.
Press the PRI NT key to initiate the sequence.
The relay will close and remain closed until the target is reached. I f a tare is selected this will be cancelled,
further batching is inhibited until the display indicates zero. Use of the TARE key to zero the display is
intended for silo batching operations from a loaded silo.
b. One trip batcher mode (MENU> WEI GHMODE< code 5 – AUTOMATI C: [ 5000x] ) .
This mode controls a single relay continuously.
c. Tw o trip batcher mode ( MENU> WEI GHMODE< code 6 – AUTOMATI C: [ 6000x] ) .
This mode controls two relays continuously.
RELAY PATTERN SELECTI ON
Refer to the menu code table and menu setting instructions.
3 relay patterns are available and each may include fast or normal integrate speeds.
MENU> FUNCTI ON< code 0/ 1
will operate normally
open
contacts, the relays will
close
if equal too or
greater than trip values.
MENU> FUNCTI ON< code 2/ 3
will operate normally
closed
then
open
if equal too or above the trip
values.
MENU> FUNCTI ON< code 4/ 5
is intended for a low/ high system. Relay 1 is normally
closed
below its trip
value then
open
above its trip value and relay 2 is normally
open
below trip value and
closed
at the preset
high level trip value.
8. A.E.O. ( Analogue Expansion Option) : Menu select [00400]
This menu setting relates to the Analogue Expansion Card that, when fitted, will transmit 4-20mA, 0-5vdc or
0-10vdc @ 16bits resolution. This output is an analogue value of the displayed weight. Refer to the data
sheet supplied with the unit for more details.
Correct Procedure to charge unit:
1. With the adaptor
AND
Junior switched
OFF
plug the adaptor jack into the unit.
2. Switch on the Adaptor and allow approx 12 hours to fully charge (from a fully discharged state). You can
use the unit whilst in charging mode.
3. Once the charge cycle is complete press and hold the ZERO key to switch off the Junior and
sw itch OFF
the adaptor via the mains outlet.
4. Disconnect the Adaptor jack from the Junior and use normally until the Battery Low indicator is indicated
then complete cycle.
