II K 4-18
Overview of Software
4.2.7 Macro 7 - ext Field Rev with remanence contactor
Description of I/O’s functionality
I/O Param Function
DI1 External field reversal with external field reversing switch. Only for 2Q application.
DI1=0=no field reversal
DI1=1=field reversal
Depend on field reversal (DI1=1) the signal „Field reversal active“ has log. state „1“.
Field reversal is only possible when the drive is OFF (DI7=0).
When field reversal is active the polarity of speed actual value is changed in the software.
It’s recommended to use a remanence contactor relay to store the state of this relay when the main
supply failes. Otherwise the relay contactors can burn due to the field inductance.
DI2 2.01 Jog speed 1. Speed can be defined in parameter 5.13.
Accel/Decel Ramp for Jogging can be defined in parameter 5.19/5.20.
DI3 External fault signal. Triggers a fault response and trips the drive
DI4 External alarm signal. Triggers a warning in DCS400
DI5 Emergency stop. Closed-circuit principle, must be closed for operation
DI6 Reset. Faultacknowledgement, reset faults signaled by the drive
DI7 Drive ON / OFF. DI7=0=OFF , DI7=1=ON
DI8 Drive START / STOP. DI8=0=STOP , DI8=1=START
DO1 6.11 Ready for Run. Converter switched ON, but not yet STARTed
DO2 6.12 Running. Drive is STARTed (Current controller enabled)
DO3 6.13 Field reversal active
DO4 6.14 Group fault signal. Common signal for all faults or alarms
DO5 6.15 Main contactor on. Controlled by ON command (DI7)
AI1 5.01 Speed reference
AI2 3.15 External torque limitation possible. First the parameter Cur Contr Mode 3.14 has to be changed
from Macro depend to Lim Sp Ctr. Without changes the factory settings for torque limitation is
effective (100%).
AO1 6.05 Speed actual
AO2 6.08 Armatue voltage actual
Parameter settings, shaded areas are set by macro - all others are set during commissioning
1 - Motor Settings 2 - Operation Mode 3 - Armature 5 - Speed Controller 6 - Input/Output
1.01 Arm Cur Nom 2.01 Macro Select
[ext Field Rev]
3.04 Arm Cur Max 5.01 Speed Ref Sel
[AI1]
6.01 AI1 Scale 100%
1.02 Arm Volt Nom 2.02 Cmd Location
[Terminals]
3.07 Torque Lim Pos 5.02 Speed Meas
Mode
6.02 AI1 Scale 0%
1.03 Field Cur Nom 2.03 Stop Mode 3.08 Torque Lim Neg 5.03 Encoder Inc 6.03 AI2 Scale 100%
1.04 Field Volt Nom 2.04 Eme Stop Mode 3.14 Cur Contr Mode
[Speed Contr]
5.09 Accel Ramp 6.04 AI2 Scale 0%
1.05 Base Speed 3.15 Torque Ref Sel
[AI2]
5.10 Decel Ramp
6.05 AO1 Assign
[Speed Act]
1.06 Max Speed 3.17 Stall Torque 5.11 Eme Stop Ramp 6.06 AO1 Mode
3.18 Stall Time 5.12 Ramp Shape 6.07 AO1 Scale 100%
5.13 Fixed Speed 1 6.08 AO2 Assign
[Arm Volt Act]
5.14 Fixed Speed 2 6.09 AO2 Mode
5.15 Zero Speed Lev 6.10 AO2 Scale 100%
5.16 Speed Level 1 6.11 DO1 Assign
[Rdy for Run]
5.17 Speed Level 2 6.12 DO2 Assign
[Running]
5.19 Jog Accel Ramp 6.13 DO3 Assign
[FieldReverse]
5.20 Jog Decel Ramp 6.14 DO4 Assign
[Flt or Alarm]
5.21 Alt Par Sel
[Sp < Lev1]
6.15 DO5 Assign
[Main Cont On]
5.26 Aux Sp Ref Sel
[Const Zero]
6.22 MSW Bit 11 Ass
[none]
6.23 MSW Bit 12 Ass
[none]
6.24 MSW Bit 13 Ass
[none]
6.25 MSW Bit 14 Ass
[none]
Short description
Non Field Reversal Mode:
• DI1 = 0 V (contact open),
only effective if drive is in
OFF state (DI 7 = 0) ð DO3
= 0 V - non active ð Relay
K2 is in „off" position ð Con-
tactor K3 is in „non reversal"
position.
• If anything happens now
with power supply / elec-
tronics supply, contactor K3
will keep the "non reversal"
position.
Field Reversal Mode:
• DI1 = +24V (contact
closed), only effective if drive
is in OFF state (DI 7 = 0) ð
DO3 = +24V relay K2 is en-
ergized ð Relay contact K2
is in "on" position ð Contac-
tor K3 is in „reversal" posi-
tion.
If anything happens now with
power supply / electronics
supply then:
• If shut down of power sup-
ply contactor K3 will keep
the „reversal" position.
• If shut down of electronics
supply (phase L1) then elec-
tronics supply and supply
for remanence contactor
failes at the same time.
Relay K2 will keep the "on"
position for a while until shut
down of SDCS-CON-3A.
Contactor K3 can not switch
over from "on" to "off" posi-
tion because of phase L1 is
interrupted.
Contactor k3 will keep the
„reversal" position.
When phase L1 is returning
then:
• Contactor K3 switches over
to "off" position.
• After signal „Field reversal
active" is active again relay
K2 switches contactor K3 to
"on" position again but the
drive is in OFF state at this
moment.
The drive can be started now
in "Field Reversal Mode"
again.
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