Calpeda SDP Betriebsanleitung Seite 93

∆-∆ DIRECT STARTING WITH CONNECTION
For 12CS-R 220 ÷ 400 motors
For 380 V operating voltage rating
For 400 V operating voltage rating
For 415 V operating voltage rating
For 440 V operating voltage rating
For 460 V operating voltage rating
Y DIRECT STARTING WITH CONNECTION
For 380 V operating voltage rating and 220 / 380 V motor
For 400 V operating voltage rating and 230 / 400 V motor
For 415 V operating voltage rating and 240 / 415 V motor
For 440 V operating voltage rating and 250 / 440 V motor
For 460 V operating voltage rating and 260 / 460 V motor
For 660 V operating voltage rating and 380 / 660 V motor
For 700 V operating voltage rating and 400 / 700 V motor
For 720 V operating voltage rating and 415 / 720 V motor
6 USE AND MANAGEMENT:
6.1 Start-up:
Only qualified personnel can carry out the necessary checks/maintenance. In this case, contact Calpeda or authorised service centres.
Always refer to the order data and the additional technical documentation provided by Calpeda for further
specifications based on the variants/special features/configurations of the product purchased.
If the electric pump fails to start (no "run-up"), do not repeatedly attempt to start as this could damage the unit. Identify the malfunction and repair.
If an indirect starting system is used, the starting transient must be brief and must never last more than a few seconds.
The first start-up must be accomplished with the isolating sluice valve only partially open. This will limit the entrainment of any sand or silt to the minimum.
If the water is turbid, throttle the sluice valve still further until only clear water is delivered.
Now gradually open the sluice valve, checking that the pump delivers not more than 40 g/m
When the pump is running, check that the power draw is no higher than that indicated on the motor data plate and that the machine operates regu-
larly.
The thermal relay must be set according to the power draw of the unit. Proceed in the following way:
1) set the electric pump to top power draw conditions, normally that of the maximum flow rate, with the relay set to the amperage value given on the
motor data plate;
2) lower the setting by steps until the relay trips (if the relay fails to reach the tripping position even when the minimum amperage value is
reached, it will be necessary to replace it since it will either be defective or oversized in relation to the power draw of the unit. Following
this, repeat the entire sequence);
3) now set the relay setting pointer to the minimum non-tripping amperage value.
REFERENCE PARAMETERS PER TYPE OF STARTING SYSTEM
2 poles
Motor
6CS-R
6CS-R
8CS-R
8CS-R
8CS-R
8CS-R
P2 = motor power rating / Vs = starting voltage / Vn = rated voltage / Is = starting current / In = rated current
NOTE: the minimum voltage value in the table refers to a voltage dip of not more than 3%.
Star - Impedance or
Delta
auto-transformer
P2
Max. time Max. time with
with star op.
Vs> 0.65 Vn
[kW]
[s] [s]
1,5 1
4÷15
18,5÷45
30÷37
2
1,5
45÷59
66
75÷110
2,5
U1
Powering cables
Motor cables
U1
(U)
L1
U1 V1
Powering cables
Connection kit
Motor cables
U1 V1
(U) (V)
(40 parts/million) solid matter at most.
3
Soft - starter
Max.
Vs
Is
acceleration
min
min
time
[% Vn] [% In] [s]
1,5
60% 400%
2
2,5
Electrical equipment
L1 L3
L2
V1 W1
Connection kit
U2 V1 V2 W1 W2
(X) (V) (Y) (W) (Z)
L2 L3
Electrical equipment
W1
Connect with each other and
insulate with the connection kit
W1 W2 U2
(W) (Z) (X)
Inverter
Max.
acceleration
time
[s]
1,5
2
2,5
GB
V2
(Y)
21