ABB DCS 400 - Page 98

II K 4-74
Overview of Software
ParNo. Parameter name and significance Min Max Default Unit
(1)
custom.
setting
Grp 9 Macro Adaptation (continued)
9.10 MotPot Incr
MotorPot Increase speed function will be controlled
from a binary signal which is assigned in this
parameter.
Assignment identical with 9.05
only effective if MotPot Decr (9.11) is not set to
1 = Disable
State of binary signal:
0=hold speed
1=increase speed
accelerate speed at Acel Ramp (5.09 ) until
Max Speed (1.06)
0 10 0 Text x
9.11 MotPot Decr
MotorPot Decrease speed function will be controlled
from a binary signal which is assigned in this
parameter.
Assignment identical with 9.05
State of binary signal:
0=hold speed
1=decrease speed
decelerate speed at Decel Ramp (5.10) until
zero speed respectively MotPotMinSpeed (9.12)
if active. MotPot Decr has precedence
above MotPot Incr
0 10 0 Text x
9.12 MotPotMinSpeed
MotorPot minimum speed function will be controlled
from a binary signal which is assigned in this
parameter.
Assignment identical with 9.05
only effective if MotPot Decr (9.11) is not set to
1 = Disable
State of binary signal:
0=Start from zero.
MotPotMinSpeed is inactive.
1=Start from MotPotMinSpeed
activate MinimumSpeed. Speed can be
defined in parameter Fixed Speed 1 (5.13).
When the drive is started the speed will be
accelerated to this minimum speed and it is
not possible to set the speed below this
minimum with motor pot function.
0 10 0 Text x
9.13 Ext Field Rev
External field reversal will be controlled from a binary
signal which is assigned in this parameter.
Assignment identical with 9.05
State of binary signal:
0=no field reversal
1=field reversal
External field reversal with external field
reversing switch. Only for 2-Q application.
Depend on field reversal 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.
0 10 0 Text x
(1) no changes possible if the drive is in ON-status