8
Electrical control panel
for 2 drainage pumps
with three-phase motor
QTLD 2D 12A-FA
OPERATING INSTRUCTIONS
Index
1.
Types
2.
Operating conditions
3.
Components
3.1.
DR 2000 electronic card
3.1.1. Settings of the DR 2000 electronic card
4.
Installation
5.
Electrical connection
5.1.
Motors connection
5.1.1. Inversion of the rotational direction
5.2.
Float switches connections
5.2.1. 3 float switches connections
5.2.2. 4 float switches connections
5.3.
Thermal protector connections
5.4.
Control panel for remote alarm connections
5.5.
Probe sensitivity setting
6.
Amperometric protection setting
7.
Operating
7.1.
Operating with 3 float switches
7.2.
Operating with 4 float switches
8.
Motors with thermal protectors
8.1.
Motors with thermal protectors with cables
to bring the signals to the terminals board of
the control panel.
8.2.
Motors without thermal protectors
9.
Control panels for remote alarm
10.
Outside of box cover
11.
Inside of the box
12
Declaration of conformity
1. Types
Type
Setting
QTLD 2D 12A-FA
6 ÷ 12 A
2. Operating conditions
- Mains:
400V 3~ ±10% 50/60 Hz
(other voltages on request).
- Ambient temperature from -5 +40 °C.
- Protection IP 55.
- Dimensions 315x235x170 mm.
- Weights kg 2,5.
3. Components
Standard construction
Control panel with protection for two submersible
drainage pumps with three-phase motors, with a
12A max. nominal current.
Functions managed by a DR 2000 type electronic
card with microprocessor.
Components
- Box in thermoplastic material.
- Line selector switch with door-locking device.
- Power line fuses.
- Auxiliary circuit fuses.
- Contactors.
- Amperometric transformers.
- DR
2000
type
electronic
card
with
microprocessor.
- Connection terminals for float switches.
- Connection terminals for remote alarm control
panel RA 100E, RA 100A type.
- Cable glands.
3.1. DR 2000 electronic card
The functioning of the pumps is managed by the
DR 2000 electronic card that incorporates the
following functions:
- changes pumps at every pump arrest.
- changes working pumps after 30 minutes of
uninterrupted operation.
- automatic functioning test of each individual
pump every 48 hours of inactivity (with pumps in
the automatic functioning mode).
- Pump control with signals coming from:
-
3 float switches:
for starting-up and stopping
pump 1, for starting-up and stopping pump 2,
for the alarms (maximum level is optional).
-
4 float switches:
for starting-up pump 1, for
starting up pump 2, for stopping the pumps and
for the alarms (maximum level is optional).
