Zener ECODRIVE 8000 Installation Manual Supplement page 36

ZENER VARIDRIVE SOLUTIONS
[SETUP for Tank Fill / Basic Pumping]
Low Speed trip
Lo Speed Trip time
20 secs
AC
When the ECODRIVE is operating in solar mode it may track below minimum speed depending on the available power.
This will result in an alarm 'Lo Speed Trip'. It is recommended to configure this under minimum speed protection
where operation below a 'minimum speed' for a prolonged period may cause damage to the pump or motor. The 'LO
SOLAR Q' time adjusted to 1 second and the 'LO SPEED TRIP' time should be changed to 2-3 seconds. This protection
may be modified or removed if required.
Single Phase In
Single Phase In
Disabled
AC
Confirm the operation of all controls and the system functions correctly.
1. With Solar Only: Check that the ECODRIVE operates the pump at the desired speed under full sunlight conditions. The
conditions in which solar operation switches on & off, will depend on the PV capacity and the settings. Fine tune as
required.
2. With Solar and Auxiliary AC supply: Check that ECODRIVE operates the pump at the desired speed under full sunlight
conditions. Check that the Auxiliary AC power supply switches in as required. The conditions where the solar operation
cycles will depend on the PV capacity and the settings. Fine tune as required.
3. Check that all level switches provide the correct operation under all conditions.
4. Check that adequate protection is in place and functions correctly.
IM00130
During 'Tracking' only, if the output speed operates below the minimum speed the
ECODRIVE will fault. This setting adjusts the trip time. It should be set as short as possible
to provide the required protection of the pump/motor but longer than the 'LO SOLAR Q
Time'. This is feature is to provide protection for the pump and is the system is correctly
configured system it should not result in a 'LOW SPEED' Trip.
If the Auxiliary AC supply is a single phase supply this parameter must be 'enabled'. For a 3
phase supply change to 'Disabled'.
P a g e | 34
ZENER ECODRIVE® 8000
20/07/2018 3:59 PM