DAYLIFF DPL 550, Installation And Operating Manual

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In the event of failure of On/Off button, a separate emergency
power-off button may be installed in the control system,
otherwise it may result in personal injury.
Do not touch the terminals of the controller, even in shutdown
state as the terminals may still be electrified, otherwise it may
result in possible electric shock.
Do not touch the heat sink, as it may be hot and cause injury.
The factory reset parameters have been programmed to meet
customer requirements. Do not arbitrarily modify the controller
parameters as it may cause equipment damage.
The pump should be turned off before repairing, to avoid
accidents.
AC input power must not be connected to output terminals U, V,
W of the controller, as it will cause damage to the inverter.
Do not disassemble the cover when the pump is switched on, as
it may result in possible electric shock.
When the controller is set on automatic fault reset or after
power off, protection measures should be taken otherwise it
may result in personal injury.
Single phase motors are provided with overload protection;
they are connected directly to the power mains.
Do not make a static voltage test of the controller, as it will
cause damage to the controller.
For DPL 1100VS,