Page 8 - Instruction Manual 3

DYNODRIVE
D YNODRIVE 6
4.3.1 During Power Up was asserted and cascading upstream, each zone will
run for an additional period of time (Run-On-Time) until
When power is first applied, each control goes through a either the timer expires or a parcel is discovered.
selfcheck and reports its firmware revision as described
in 5.2 Firmware Version Display.
5. DIAGNOSTICS &

Beginning at the Exit end and then flowing zone by zone
after very brief intervals to avoid creating high inrush
current at the power supply, each zone then runs for a TROUBLESHOOTING
period of time (Runon-Time), or until a parcel arrives at
the respective zone sensor, whichever comes first.
5.1 LED Indicators
In this fashion, any parcels that may have been stranded The control provides four (4) LED indicators shown
between sensors when power was removed are as item 5 in Figure 1. These LEDs are often useful in
discovered and will then be processed by the conveyor in diagnosing various wiring and connection problems. If
either ZPA or ZIP control mode as determined by the power is connected there will always be at least one LED
switch settings. illuminated or flashing. When no LED is illuminated,
there is no power.
NOTE: 2.5 seconds is the nominal Run-On-Time
when the controls are set for maximum speed. This
time is increased if zones are set to a lower speed 5.1.1 Fuse LED (Red)
than maximum speed.
For example, if a zone is set to half its maximum CAUTION: The control’s internal fuse will not blow
speed, the nominal Run-On-Time is doubled to 5.0 under normal operating circumstances. Inspect all
seconds. wiring connections to assure that there are no short
circuits.
4.3.2 After Discharge of a Parcel from the This LED is off under normal circumstances. It
Downstream Edge of a Zone illuminates constantly if the internal 15 amp internal
fuse is blown and power is applied with the proper
It is not unusual for operators who are manually loading polarity. The 15 amp fuse on the board is not user-
parcels onto a conveyor to place two small parcels in accessible. If the blown fuse LED is illuminated, return
a single zone. If the zone stopped immediately after a the board to your distributor or supplier for analysis or
parcel passed its downstream sensor the second parcel repair.
could become stranded. NOTE: The control’s on-board fuse is NOT
replaceable.
Therefore, each zone will operate for the additional 5.1.2 Fault LED (Red)
period of time (Run-On-Time) after these events.
This LED is off under normal circumstances. If a
This is a local function that directly affects only the zone problem is detected, it provides one of the following five
that just discharged its parcel. signals:

4.3.3 After Removal of a Slug Mode Signal • One (1) flash in 4 seconds: The board has a hardware
problem. Return it to your supplier.
(If Reverse Slug is Not Active)
• Two (2) flashes in 4 seconds: The input voltage is too high.
During Slug mode of operation, parcels are not tracked • Three (3) flashes in 4 seconds: The input voltage is too low.
by the system logic. Some parcels will likely be between • Four (4) flashes in 4 seconds: There is a problem with the
sensors at the time the Slug signal is removed. motor cable or connection. Check to see that the cable is
not damaged and that all of the wires are secure.
Beginning with the zone where the Slug signal was • Five (5) flashes in 4 seconds: control over temperature.
asserted and cascading upstream, each zone will run for
an additional period of time (Run-On-Time) until either • Six (6) flashes in 4 seconds: Extreme over current.
the time expires or a parcel is discovered. • Constantly ON: The motor is stalled or the sensor
is continuously blocked. Check for mechanical
4.3.4 After Removal of a Rev Slug Signal obstructions.

(If Slug Mode is Not Active)

Since Reverse Slug causes the zones to coast, parcels
that were in motion will come to rest in more or less
random locations.
Beginning with the zone where the Reverse Slug signal

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