ABB DCS880 series - Page 55

Planning the electrical installation
55
3ADW000462R0401 DCS880 Hardware manual e d
4:DC contactor (US style):
The DC contactor (US style) K1.1 is a special designed DC contactor with one normally closed
contact for the dynamic braking resistor R
B
and two normally open contacts for C1 and D1. The DC
contactor should be controlled by 06.24.b10 Current controller status word 1. The acknowledge
signal can be connected to either 20.34 Mains contactor acknowledge source, or 20.35 DC breaker
acknowledge source. Use 20.33 Mains contactor control mode = DC contactor.
K16K15
K15
1
2
SF_CON4_001_E-stop_b.ai
1
2
K16
Off2
Off2
Off2 (current off)
1
DIL
XD24 2
+24 VD
Off3
DZ_LIN_006_E-stop_b.ai
Emergency stop
Speed
Block current control
Mains contactor (K1)
Emergency stop ramp Coast
Timer relay (K15)
Timer relay (K16)
Emergency stop reaction
U1 W1V1 PE
F100 - F102
C 1 D 1
M
+
_
L1
X10:
F+
F-
OnBoard field exciter
K1.1
R
B
SF_800_003_us_b.ai
DCS880
Internal voltage
measurement
DZ_LIN_007_us_c.ai
Mains contactor 06.24.b07
Dynamic braking contactor 06.24.b08
US style DC contactor 06.24.b10
t
Internal DC voltage
measurement
DC voltage measurement
at the motor terminals
Without field
weakening
20.44 Dynamic braking
delay ≥ 0.1 s.
20.44 Dynamic braking
delay ≤ -0.1 s.
With field
weakening
Not allowed.