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CHAPTER 4 - Start-up and adjustment of the drive
MANIU04.9607 GB 03/97
Page 4.4
P6, ACC_RP
,
Acceleration ramp counterclockwise:
it represents the positive speed ramp
counterclockwise (acceleration), expressed in seconds, within a range 00.01 s
÷
30.00 s, with
all intermediate values.
P7, DEC_RP
,
Deceleration ramp counterclockwise:
it represents the negative speed ramp
counterclockwise (deceleration), expressed in seconds, within a range 00.01 s
÷
30.00 s, with
all intermediate values.
P8, ACC_RN
,
Acceleration ramp clockwise:
it represents the positive speed ramp clockwise
(acceleration),expressed in seconds, within a range 00.01 s
÷
30.00 s, with all intermediate
values.
P9, DEC_RN
,
Deceleration ramp clockwise:
it represents the negative speed ramp clockwise
(deceleration), expressed in seconds, within a range 00.01 s
÷
30.00 s, with all intermediate
values.
P10, IN3_CF
,
Input 3 configuration:
it is the configuration of input 3 (on terminal board
TE,J1/5 ):
7 configurations are possible (see table 5/1).
P11, IN4_CF,
Input 4
configuration:
it
is the configuration of input 4 (on terminal board
UE,J1/2
): 7 configurations are possible (see table 5/1).
P12, OUT1_A,
Analog output 1:
it shows the configuration of the analog output
DAC1, J1/21
,
within a range ±10V; the several possible configurations are described in table 5/3.
P13, DA1SHF
,
Analog output 1 shift:
it is the number of shifts (divisions by 2) of the
numerical value to be represented with the analog output DAC1, to return within the allowed
limits or to increase the resolution within a given range. In other words, it is the scaling factor
between the numerical value and the analog value of the internal variable to be visualized.
P14, OUT2_A
,
Analog output 2:
it shows the configuration of the analog output
DAC2, J1/22,
within a range ±10V; the several configurations are described in table 5/3.
P15, DA2SHF
,
Analog output 2 shift:
it is the number of shifts (divisions by 2) of the
numerical value to be represented with the analog output DAC2, to return within the allowed
limits or to increase the resolution within a given range. In other words, it is the scaling factor
between the numerical value and the analog value of the internal variable to be visualized.
On defauft configuration OUT1_A=4 (actual speed monitor) and OUT2_A=5 (torque signal
monitor) are set, already normalized according to the maximum values set with
P4, W - MAX
and
P5, l_MAX
(the parameters DA1SHF and DA2SHF are set to zero), corresponding to a
signal full scale factor equal to 7.5V.
P16, DIG_01,
Digital output 1:
configurable digital output, available on terminal board on
DIG1, J1/10
, with signal 0
÷
+15V (for size 224 0
÷
+24V) (see configuration table 5/2).
P17, DIG_02,
Digital output 2:
configurable digital output, available on terminal board on
DIG2, J1/11
, with signal 0
÷
+15V (for size 224 0
÷
+24V) (see configuration table 5/2).
P18, IN_MOT,
Rated motor current:
it defines the rated current of the motor or the current at
which thermal steady state is reached. Its dynamics is set by the thermal time constant,
defined with P19, TH_MOT; in practice, together with P19, it defines the intervention
threshold of the motor I
2
t protection. lt is expressed as a percentage of the rated current of
the drive.
P19, TH_MOT
,
Motor thermic time constant:
it
defines, in seconds, the thermal time constant
of the motor, that must be specified by the motor manufacturer; together with IN_MOT, it
defines the intervention threshold of the motor I
2
t protection.
P20, OFF_AN:
Internal parameter not to be modified.
P21, OFFMED
,
Analog velocity offset, accurete value:
it is the parameter that accurately sets
the offset of the 12-bit A/D converter for the speed analog reference. lt is determined during
the offset adjusting procedure, together with
P20, OFF_AN
, but it can be modified if the
calculated value is not accurate enough and the control to 0V is not satisfactory.
P22
: Parameter currently not used.
P23, K-LEAD
: Internal parameter not to be modified.
P24, ZERO_S
,
Minimum velocity:
it can be used to have a low signal whenever the motor
speed is lower than the value set with this parameter (in rpm). Therefore, when it is used