Deblocking; Signalling - ITT HXC 501-1 Betriebsanleitung

HXC 501-LXCD 655 20.10.2006
49
8:16 Uhr Seite 49
english

6.5 Deblocking

Switch pump off.
Shut the stop valves before and after the pump.
Risk of burning if the pump is touched.
The pump, motor and electronic equipment
can be very hot (80 °C).
There is a risk of scalding
Depending on the temperatur and system pressure, hot pump
medium can escape in the form of liquid or steam.
After undoing the screw plug (water emerges through
the bearing clearance) deblock the rotor shaft with a screwdriver.
Rotate the shaft end until the resistance decreases.
Fit screw plug.
Open the stop valves before and after the pump.
Switch pump on.
Depending on the operating pressure
Warning
(sealing, slide valve), the pump rotor can become
blocked.
In the case of pumps with a screw plug,
check the direction of rotation of the shaft.

6.6 Signalling

A two-color LED, red/green, is integrated for the signalling
of operational and error states
Function
Pump OFF
Pump running in range A
Pump running in range B
Pump running in range C
Electronics fault
Minimum speed
Pump blocked
LED Message Message
Operation Fault
off off
lit green on
flashes green on
irregularly**
flashes green on
regularly*
flashes red off
regularly
flashes on
green/red
lit red off
* = flashing regularly:
1 s on/ 1 s off
** = flashing irregularly:
1.5 s on/ 0.5 s off/ 0.5 s on/ 0.5 s off
1)
= after 12 min.
off
off
off
off
on
1) 1)
off
on
1) 1)