Mains Configurations Scu; Single Phase Supply (L-N) I < 64A - Eaton Holec Clink II User Manual

CLINK II SCU MANAGER
Note
• The main circuit contains fuse F1, isolator Q1 and contactors K1, K2 and K3. To be able to determine the
status (OFF, LOW, HIGH) of the main circuit, the status of K1 and K2 is read in by the Starter Control Unit
through the digital inputs DI_1 and DI_2 (see figure 32 and figure 33). The status of the isolator is read in
through digital input DI_0. Digital inputs are used for manual control (S10, S11 and S12). The auxiliary
relays K10, K11 and K12 are activated with the digital outputs DO_0, DO_1 and DO_2.
• Direct switch off via auxiliary circuit is possible with S1.
9.2

Mains configurations SCU

9.2.1 Single phase supply (L-N) I < 64A
Lx
N
Note
• Current measurement must be connected to the analog input I1 to enable correct Power Factor measure-
ment. Select the phase that has to be measured by using the setpoint Voltage Measurement Mode (see
5.2.1 on page 15).
• The contactor must be connected between the same phase and neutral as used for voltage measurement
by the SCU to enable Automatic Restart Function.
• Both MIU 21-16 and MIU 21-64 can be applied. For information regarding the MIU see the System Over-
view manual. Connection points are the same.
electric circuit diagrams scu
p1
CT1
p2
p1
CT2
p2
R1
9
p1
VT1
R2
10
p2
11
12
Figure 34: Single phase supply (L-N)
1
s1-1000
2
s1-250
s2
3
s1-1000
4
s1-250
s2
5
6
s1
s2
7
8
s2
MIU 21-16
version 5.0
SCU
I1
I2
I3
U
AGND
I∆N
83