IWAKI IX-C060 S6 FA-RF, Инструкция по эксплуатации

Страница: 18 / 84

18
Operational functions
Protective functions
■ Interlock function (See page 42 & 43)
The start/stop of operation can be controlled by a signal from an external device. See page 30 "STOP signal"
for wiring diagram. Interlock function works in the same way as the STOP function but uses a preference cir-
cuit. Use this function for emergency stop.
■ Diaphragm rupture detection (See page 42 &43)
The pump stops right after a built-in sensor detects a leak in the compartment at the back of the diaphragm. In
this state the operation LED lights in red colour. Replace a broken diaphragm as necessary. See page 59 for
diaphragm replacement. To release this error condition, push the start/stop key (or the ESC key under Pro
fi bus
control.).
NOTE
This capacitance sensor does not work properly if liquid conductivity is 1mS/m or below. Before sending pure
water, oil or any other low-conductivity liquid, check its conductivity to see if it meets the minimum level. Do
not use this function when it is 1mS/m or below. Instead, check the diaphragm for damage and replace it on
fi nding a leak from the drain port. Otherwise, the pump may fail.
■ Pressure overload detection
The pump stops right after a built-in sensor detects 1.3-2.0 times higher discharge pressure than the maximum
level. In this state the operation LED
fl ashes in red colour. The pump resumes operation 30 seconds after the
stoppage. If pressure overload has recurred 5 times consecutively, the pump will not resume operation any
more and will keep still. Push the start/stop key to release this state.
NOTE
A detection level varies with operating conditions and a piping layout within the above pressure range. Set up
a relief valve if the pressure resistance of other related devices is lower than that rage.
OFF
ON
Run Stop
Sensor signal
Pump operation
A leak is detected.
OFF
ON
1 2 3 4 5times
30sec 30sec 30sec 30sec
Sensor signal
Pump operation
Run Stop