Connections to the (Male 15-pin D-Sub) connector are used to:
● remotely control the start and stop functions,
● set the rotation speed.
The connector wiring is the customer’s responsibility.
5.5.1 Digital input wiring
There are dry contact inputs. Do not add more connections than those provided: S1, S3, S4 and S5.
1
5
6
7
2
3
4
9
10
15
14
13
12
11
8
S1
S3
S4
S5
Fig. 4:
Remote control connector wiring
Contact
Function
S1 (7-8)
Pump Start/Stop
Contact open, S1=0: the pump stops
Contact closed, S1 =1: pump start-up
S3 (9-10)
S4 (11-12)
S5 (13-14)
Rotational speed setting Depending on the contact status (open or closed), the rota-
tion speed changes.
5.5.2 Setting of the rotation speed
Contact
Rotation speed
S3
S4
S5
Hz
min
-1
1
1
0
40
2500
1
0
0
50
3000
0
1
0
65
3900
0
0
0
80*
4800*
* Corresponds to the speed set on the cover plug delivered with the pump.
Tbl. 1:
Rotation speed
Influence of rotation speed on pump performances
Pump performances are guaranteed for a nominal speed of
80 Hz
. Changing the
rotation speed affects the pumping speed and the ultimate pressure of the pump. At
low speed, it is the customer’s responsibility to find the correct settings according to
the pump and the process.
● Do not exceed the maximum frequency
● Do not run the pump continuously at speeds
≤ 60 Hz
.
5.5.3 Digital output wiring
Contact
Function
S2 (5-6)
Status of the rotation speed
Contact closed: nominal speed reached
Installation
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Summary of Contents for ACP 28 CP
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