ABB DCS550 Series, Manual

Page: 206 / 316

206
Signal and parameter list
3ADW000379R0501 DCS550 Manual e e
Signal / Parameter name
m
in.
ma
x.
def
.
uni
t
21.05 - 21.13 Unused
21.14 FanDly (fan delay)
After the drive has been switched off [UsedMCW (7.04) bit 0 On = 0], both fans (motor and converter) mustn't
switched off before FanDly (21.14) has elapsed. If motor or converter overtemperature is pending, the delay
starts after the temperature has dropped below the overtemperature limit.
Int. Scaling: 1 == 1 s
Type: I Volatile: N
0 300 0 s
21.15 Unused
21.16 MainContCtrlMode (main contactor control mode)
MainContCtrlMode (21.16) determines the reaction to On and Run commands [UsedMCW (7.04) bits 0 and
3]:
0 = On
main contactor closes with On = 1, default
1 = On&Run main contactor closes with On = Run = 1
2 = DCcontact If a DC-breaker is used as a main contactor, it will be closed with On = 1. Additionally
the armature voltage measurements are adapted to an open DC-breaker by clamping
SpeedActEMF (1.02), ArmVoltActRel (1.13), ArmVoltAct (1.14) and EMF VoltActRel
(1.17) to zero when the drive is Off.
The clamping is released:
−
either 100 ms after an On command (MCW bit 0) is given in case DCBreakAck
(10.23) = NotUsed or
−
when using the DC-breaker acknowledge with DCBreakAck (10.23) = DIx until the
acknowledge signal indicates that the DC-breaker closed.
Note:
The DC-breaker (US style) K1.1 is a special designed DC-breaker with one normally closed contact for the
dynamic braking resistor RB and two normally open contacts for C1 and D1. The DC-breaker should be
controlled by CurCtrlStart1 (6.03) bit 10. The acknowledge signal can be connected to either MainContAck
(10.21) or DCBreakAck (10.23):
Int. Scaling: 1 == 1 Type: C Volatile: N
On DCc
o
n
ta
c
t
On -