Zener 8000 Application Manual page 12

Application SW08024: PID Irrigator
Preliminary Checks
The following should be performed with the ZENER 8000 in local mode to provide better control to carry out
the checks. Ensure the motor, pump and plumbing is ready and safe to operate.
To operate in local mode:
Remove the link in terminal 5, this
selects local mode.
25.0 Hz
35.0 FWD LOC
FWD REV ENTER
  
Check motor/pump direction:
Press FWD/ ▲ to start and increase the motor speed sufficient to test the direction. The ZENER 8000 will run
to the minimum speed. Use the ▲ to increase the speed above the minimum speed level.
If the motor shaft or pump rotates in the wrong direction, remove the input power, wait for the ZENER 8000 to
discharge and swap any two motor phase wires. Re-apply input power and recheck direction
Check pressure transducer feedback:
Press FWD/ ▲ to start & increase the motor speed until the desired operating pressure is indicated on the

pressure gauge. Press
below.

Check that the top display (PV) is displaying the
correct pressure as per the pressure gauge.
The service menu can be used to display the
mA being received from the transducer. If this
is not within acceptable tolerance, investigate
and rectify.
 Check the motor & pump are adequate and operating correctly.
Page 11 Document: IM00160A
1 2 3
EXIT STOP
C
ESC
(ENTER) to scroll through the operator displays (see page 5) to the PID display shown
15/07/19
ZENER 8000
Main Control PCB
4 5 6 7 8 9
Remove the link into terminal 5 to operate
motor/pump using local controls to test direction
REM= REMOTE OR PID MODE [Control using terminal inputs]
LOC = LOCAL MODE [Control using push buttons]
Top display: Actual Speed in Hz (50Hz = full speed)
Bottom Display: Set speed
Press FWD/▲ to start
Press FWD/▲ to increase the speed
Press STOP to stop the pump
Note:
If there is a minimum speed set it will go straight to that
speed. To increase above this speed you will need to hold down the
UP button until it goes above the minimum speed setting.
=
14 15 16
10 11 12 13
P
100.0 psi
V
S
100.0 psi FWD LOC
V
17
18