Zener ECODRIVE 8000 Installation Manual Supplement page 22

ZENER VARIDRIVE SOLUTIONS
Solar Pressure Control Wiring:
The following control wiring is recommended when the application for 'Pressure Solar' or 'Pressure solar AC' is selected.
Input D1 (2): Operating mode
Remove link for 'Solar Only' operation. The ECODRIVE will
run only when 'SOLAR GOOD' conditions are met. This will
prevent operation under low solar conditions. Install link
for "Solar & Auxiliary AC operation.
Input D2 (3): Level Switch
Not used – Ensure a link is installed as shown.
Input D3 (4): Run Input
Close to run when operating in AUTO/'REMOTE Mode'.
Input D4 (5): REMOTE/LOCAL Mode Selection
See AUTO/MANUAL below. Close for AUTO (REMOTE MODE).
REMOTE = AUTO & LOCAL = MANUAL
AN1 (10,11) Irradiance Sensor Input:
An irradiance sensor is optional for solar only but
mandatory with an Aux AC power supply.
Flow Switch (D3)35:
A flow switch can be connected to trigger idle mode. This
may be required for installations with multiple set points
or a variable set point where the '% Load ' method may
not be suitable. Refer to page 46 or explanation on Idle
mode.
Input Opt. D4 (37):
Bore/Well Level Probe/Switch:
Running completely dry can damage the pump. A probe
should be installed in the pump well to detect a loss of
water and turn off the pump before running dry. When
the water level is low the ECODRIVE will stop the pump.
When the water level returns and the contact closes, the
ECODRIVE will wait for the preset time and then restart.
Additional Protection:
Additional protection may be required depending on the
application. Protection that is critical to an operation or
may result in damage to equipment or material in the
process should be engineered to operate independent to
the ECODRIVE with adequate fail safe measures considered.
Suggested Control Wiring:
IM00130
Note:
MANUAL ("LOCAL" MODE): this mode normally
provides control from the front console and is
active when D4(5) is off/inactive. In this mode
of operation the following inputs remain active.
•
D1(2) 'Operating mode'
•
D2(3) Tank Level Control
•
Opt D4(37) Bore level protection
Auto/Manual switch (if fitted or wired externally):
Auto: With this wiring configuration, "Auto" mode will control the load depending on the solar
intensity. If required, an additional run switch can be installed for remote start/stop or other
remote control. When there is sufficient Solar Power available the ECODRIVE will run on Solar,
and automatically switch off or changeover to auxiliary AC supply when the solar intensity is
'LOW'. When sufficient solar intensity returns the ECODRIVE will automatically start or switch
back to Solar if running with an auxiliary AC supply.
Manual (LOCAL MODE) : "Manual" Mode allows control from the local console and with the
wiring shown, configured to operate from solar only.
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ZENER ECODRIVE® 8000
20/07/2018 3:59 PM