This preview shows page 1. Sign up to view the full content.
Unformatted text preview: eld converter sets the firing
angle to maximum . The contactors are opened, when
the actual current has reached zero.
ON = 0 internally forces RUN = 0.
Emergency off Field and armature current are removed as fast as
possible. After the current has reached IDC = 0 the
contactors are opened. The normal start command is
accepted when OFF2_N = EME_OFF_N = 1.
Emergency stop Command EME_STOP = 0 gives the same procedure
as RUN = 0 (normal stop) except that the ramp is
switched from deceleration to emergency stop and the
state ON_INHIBIT is entered when the speed has
The normal start command is accepted when OFF3_N
= EME_STOP_N = 1.
The reference handling and current limitation is controlled by EME_STOP_MODE.
Fault reaction Power up When the electronics power supply is switched on the
drive stays in the ON_INHIBIT state until ON = 0 is
detected. In case of a fault the drive stays in the FAULT
Normal start Status bit RDY_ON = 1 signals that no faults are
pending and that the device is ready to close the main,
fan and field contactor.
A rising edge of the ON command closes fan, field and
main contactor and activates the field control.
Status bit RDY_RUN = 1 indicates that the field
converter is active and that the drive is ready to generate
A rising edge of the RUN command activates speed and
Status bit RUNNING = 1 indicates that the drive is in
normal operation. Depending on the actual fault the armature current
and/or field current is reduced to zero as fast as possible
with single pulses and maximum firing angle. Contactors are opened when the current has reached zero.
Then the state TRIPPED is entered and after a successful reset the state ON_INHIBIT.
The following state diagram shows the transitions
between the different states. II F 3-2
3ADW000072R0601 DCS600 System description e f Voltage
switched off Switch on
inhibit Status Disable
ON INHIBIT (MSW Bit6=1) Power ON OFF 1 ( MCW Bit0=0) not ready
to swich on Control and
Status Status Not ready for startup
OFF (MSW Bit0=0) ABC DE F from every device status Main Control word basic condition
(MCW=XXXX XXXX XXXX X110 ) disable operation
(MCW Bit3=0 RUN) Inhibit
active Fault ready to Ready from every device status
OFF1 (MCW Bit0=0) Stop drive *) according to
- DECELER TIME (22.02)
at speed control
- TORQ RAMP DOWN (25.06) /
TORQ REF A FTC (25.02)
at torque control
then open Main Contactor
(not ready for startup,
MSW Bit0=0) Stop drive
(MSW Bit3=1) Fault Inhibit
Status Ready for startup
RDY_ON (MSW Bit0=1)
operation (MSW Bit2=0 RDY_REF )
ON (MCW Bit0=1) OFF1
active ABB Drive Profile
for DC-drives Error corrected
RESET (MCW Bit7= 1) Status Ready for operation
RDY_RUN (MSW Bit1=1) Release
from every device status
OFF3 (MCW Bit2=0)
Stop drive *)
eme stop mode n=0 / I=0 (n=0 / I=0) OR (MCW Bit3=0 (RUN)) from every device status Emergency Off
OFF2 (MCW Bit1=0) OFF2
active Coast Stop
(MSW Bit4=0) Status:
(MSW Bit5=0) BCD RFG-output
RAMP_OUT_ZERO ) Enable
Operation Release electronics and pulses
RDY_REF (MSW Bit2=1) Status Operation released CD
A RFG stop
RAMP_HOLD) RFG: Enable
RAMP_IN_ZERO ) MCW
RFG = Main Control Word
= Main Status Word
View Full Document
This note was uploaded on 08/22/2011 for the course EEE 230 taught by Professor Subramanian during the Spring '07 term at Berkeley.
- Spring '07