Emerson SP4402 - Menu 3: Regen Sequencer; Menu 3 Regen Logic Diagram

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94 Unidrive SP Regen Installation Guide
www.controltechniques.com Issue Number: 2
9.3 Menu 3: Regen sequencer
In regen mode the drive assumes the mains is lost, it does not close the input, and does not attempt synchronisation if the DC bus voltage is below
the levels given in the table below.
If the unit is synchronised and the DC bus voltage falls below this level the unit is disabled and the Regen drive main contactor is opened.
The Regen drive also monitors the voltage at it's AC terminals (U, V and W) for mains loss and if this falls below the levels given in the table the unit
is disabled and the Regen drive main contactor is opened.
Figure 9-1 Menu 3 Regen logic diagram
Voltage
rating
DC voltage mains loss
detection level
AC voltage mains loss
detection level
DC voltage for supply
healthy
200 V 205 Vdc 75 Vac 215 Vdc
400 V 410 Vdc 150 Vac 430 Vdc
575 V 540 Vdc 225 Vac 565 Vdc
690 V 540 Vdc 225 Vac 565 Vdc
2.01
Output
voltage
5.02
2.01
Output
power
5.03
2.01
Reactive
power
3.01
2.01
Output
frequency
5.01
2.01
Input
inductance
3.02
Modulator
and power
circuit
2.01
DC bus
voltage
5.05
3.05
Voltage
set-point
Current
control
(Menu 4)
Voltage
controller
kp gain
Mains
supply
3.10
Power
feed-forward
compensation
Power to
current
conversion
0.XX
0.XX
Key
Read-write (RW)
parameter
Read-only (RO)
parameter
Input
terminals
Output
terminals
X
X
X
X
The parameters are all shown at their default settings
Enable
input
Regen
sequencer
3.08
Main
contactor
closed
3.04
Regen
restart
mode
2.013.03
Regen
status
3.07
3.09
Close start up
contactor
Enable
motor drive
25
31
24
+
+
+
_
41
42
Kp gain
3.06
Ki gain -
No user access