DLA71DB482P [ETC]

Monitoring Relays Pump alternating; 监控继电器泵交替


型号：	DLA71DB482P
厂家：	ETC
描述：	Monitoring Relays Pump alternating 监控继电器泵交替继电器监控泵
文件：	总4页 (文件大小：123K)
中文：	中文翻译
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Monitoring Relays

Pump alternating

Type DLA71

• Pump alternating relay for 2 or 3 pumps

• Output: 2 x 5 A SPST relay or 3 x 5 A SPST

• For mounting on DIN-rail in accordance with

DIN/EN 50 022

• 35.5 mm DIN-rail housing

• LED indication for relay and power supply ON

• Galvanically separated power supply

• Built-in delay for the second or third pump in case of

simultaneous activation is required

• Built-in function for automatic rotation of the pumps

Product Description

Ordering Key

DLA 71 T B23 3P

DLA71 is relay made to avoid big inrush current.

alternate 2 or 3 pumps in a

Housing

Function

multiple pump system. In The LED indicates the state Type

case of need (i.e.: overflow) of the alarm and the output Item number

the second, or even the third relay.

pump can be activated

Output

Power supply

together with the first one.

35.5 mm wide housing suit- Number of pumps

In case more than one pump able both for back and front

is required to start at the panel mounting.

same time, the pumps start

10 s after the previous to

Type Selection

Mounting

Output

Function

Supply: 24/48 VAC

Supply: 115/230 VAC

DIN-rail

2 x SPST

3 x SPST

For two pumps

For three pumps

DLA 71 D B48 2P

DLA 71 T B48 3P

DLA 71 D B23 2P

DLA 71 T B23 3P

Input Specifications

Output Specifications

Contact input

Terminals

Output

DLA71...2P

DLA71...3P

2 x SPST NO relay

3 x SPST NO relay

250 VAC

DLA71...2P (normal mode)

ON/OFF 1 pump

ON/OFF 2 pumps

Rated insulation voltage

C, S1

C, S2

Contact ratings (AgSnO₂)

Resistive loads

AC 1 5 A @ 250 VAC

DC 12 5 A @ 24 VDC

DLA71...2P (differential mode)

first pump starts

first pump stops

second pump start

second pump stop

Small inductive loads AC 15 1.5 A @ 250 VAC

DC 13 1.5 A @ 24 VDC

C, S1

C, S3

C, S2

C, S4

Mechanical life

Electrical life

≥ 30 x 10⁶operations

≥ 10⁵operations

(at 5 A, 250 V, cos ϕ = 1)

DLA71...3P (normal mode)

ON/OFF 1 pump

ON/OFF 2 pumps

Operating frequency

Dielectric strength

Dielectric voltage

≤ 7200 operations/h

C, S1

C, S2

C, S3

2 kVAC (rms)

ON/OFF 3 pumps

Rated impulse withstand volt. 4 kV (1.2/50 µs)

DLA71...3P (full mode)

ON 1 pump

ON 2 pumps

ON 3 pumps

OFF all pumps

C, S1

C, S2

C, S3

C, S4

Disabled

Enabled

Voltage

Current

> 10 kΩ

< 1 kΩ

< 25 V

< 2 mA

Specifications are subject to change without notice (01.09.06)

DLA71

Supply Specifications

General Specifications

Power supply

Overvoltage cat. III

(IEC 60664, IEC 60038)

Indication for

Rated operational voltage

through terminals:

A1, A2 or A3, A2

Power supply ON

One Pump ON

Two Pumps ON

LED, green, steady

as above, flashing 1 Hz

as above, flashing 2 Hz

B48: 24/48 VAC 15%

45 to 65 Hz, insulated

B23: 115/230 VAC 15%

45 to 65 Hz, insulated

Three Pumps ON(DLA71...3P) as above, flashing 3 Hz

Note: if more than one pump

is active, the indication refers

to the pump started last.

Dielectric voltage

Supply to input

Supply to output

Input to output

Environment

Degree of protection

Pollution degree

Operating temperature

Storage temperature

(EN 60529)

IP 20

-20 to 60°C, R.H. < 95%

-30 to 80°C, R.H. < 95%

4 kV (1.2/50 µs)

Rated operational power

3 VA

Housing

Dimensions

Material

35.5 x 81 x 67.2 mm

PA 66

Weight

Approx. 135 g

Screw terminals

General Specifications

Tightening torque

Max. 0.5 Nm

acc. to IEC 60947

Reaction time

Approvals

CE Marking

EMC

Immunity

Emission

UL, CSA

Yes

Closing input < 100 ms

Opening input < 100 ms

Minimum delay to activate

the rescue pumps 10 s

Electromagnetic Compatibillity

According to EN 61000-6-2

According to EN 61000-6-3

Continous working time to

activate the rotation pumps 6 h 10%

Mode of Operation

DLA71 is made for pumping Example 2

reached three pumps work ly starts. If also the second

systems where 2 or 3 pumps (emptying a basin, 2-pump at the same time. When they pump works continuously

are in parallel. It lets the system, differential mode)

pumps work alternatively, In this case the pumps are turned off in sequence start- stopped and the third pump

allowing more pumps to separately started and ing from the one running is then started.

work togheter in case of stopped by the two pairs of longer. If a couple of pumps is con-

tinuously working for

hours, the one running for

allows the pumps to work (emptying a basin, 3-pump more time stops and the free

switch back the pumps are alone for 6 hours, it is

need.

switches S1, S2 and S3, S4.

Appropriate positioning Example 4

Example 1

(emptying a basin, 2-pump together in case of need.

system)

system, full mode)

As soon as the liquid reach- This rotation is repeated

es switch S1 one pump every 6 hours of continuative

one starts.

As soon as the liquid reach- Note (2-pump system)

es switch S1 one pump If the system is continuously starts. When it drops below work of a pump or a couple

starts. As soon as S1 working with only one pump, switch S4 it stops. If switch of pumps.

switches back the pump after working for 6 hours, S1 is triggered again another

stops. When switch S1 is DLA71 stops the pump and pump starts. If switch S2 is Note (2 and 3-pump sys-

activated again the other the second one automatical- activated a second pump tems)

pump starts allowing uni- ly starts.

starts (rescue function). If In case the task is to fill a

form wear and tear of all the This rotation is repeated switch S3 is activated all the basin, all the switches are

pumps. If switch S2 is acti- every 6 hours of single and pumps operate. The only reversed in the basin itself.

vated both pumps start (2 continuative work of

pumps running at the same pump.

time). When S2 switches

switch to stop all the pumps

active at a certain time is S4.

back the pump running Example 3

Note (3-pump system)

since most time stops.

(emptying a basin, 3-pump If the system is continuously

system, normal mode)

The system works exactly as after working for 6 hours,

described in example DLA71 stops the pump and

except that if switch S3 is the second one automatical-

working with only one pump,

Specifications are subject to change without notice (01.09.06)

DLA71

Wiring Diagrams

DLA71...2P

DLA71...3P

48/230 VAC 24/115 VAC

Operation Diagrams

Example 1

Power supply

15 -18

15 -28

PUMP 2

PUMP 1

Automatic

rotation function

6 h

Working time

Example 2

Power supply

15 -18

15 -28

PUMP 2

PUMP 1

Automatic

rotation function

6 h

Working time

Specifications are subject to change without notice (01.09.06)

DLA71

Operation Diagrams

Example 3

Power supply

15 -18

15 -28

15 -38

PUMP 3

MP 2

PUMP 1

Automatic

6 h

rotation function

Working time

Example 4

Power supply

15 -18

15 -28

15 -38

PUMP 3

MP 2

PUMP 1

Automatic

6 h

rotation function

Working time

Dimensions

35..55

67.2

18.7

Specifications are subject to change without notice (01.09.06)

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