3 — PROGRAMMABLE PARAMETERS
pg. 63
Curtis Model 1351 – December 2018
PARAMETER
ALLOWABLE RANGE
DEFAULT
DESCRIPTION
Initial Level
Driver_X_Hold_Level
Parameter’s CAN Index by
Driver_X_Hold_Level
11 = 0x315A 0x00
12 = 0x315B 0x00
0.0 – 100.0 %
0 – 1000
0.0 %
0
The percentage command for the Initial Hold Level.
This is the percentage the driver will initially “jump to” without
ramping. This is affectedly the traditional contactor pull-in
parameter. For example, a high pull-in ensures contactor contact-
tips closure or a fast EM Brake release.
X= 11 or 12 for the VCL name Driver_X_Ramp_Down_Time
Direct PWM:
This is the pulse width percentage.
Voltage Comp:
This is nominal voltage percentage.
(
Note, uses the nominal B+ voltage as
the reference
)
Current Cntrl:
This is percentage between the maximum
and minimum driver current setting.
(See the Current Control parameters menu,
below)
Note that the Initial level may be above or below the applied
command.
Initial Time
Driver_X_Hold_Time
Parameter’s CAN Index by
Driver_X_Hold_Time
11 = 0x316A 0x00
12 = 0x316B 0x00
0 – 10000 ms
0 – 10000
0 ms
0
The time the Initial Level is applied.
X= 11 or 12 for the VCL name
Driver_X_Hold_Time
This parameter allows customization of the driver’s initial-level
parameter duration, before any ramping to the longer-term
command percentage.
Current Control
This menu is Context Enabled: Visible only when
Control Mode = Current Cntrl
Max Current
Driver_X_Max_Current
Parameter’s CAN Index by
Driver_X_Max_Current
11 = 0x311A 0x00
12 = 0x311B 0x00
0 – 3000 mA
0 – 3000
0 mA
0
Maximum current that the 100% command will effectuate.
X= 11 or 12 for the VCL name
Driver_X_Max_Current
Reference the
Driver_X_Command
.
Min Current
Driver_X_Min_Current
Parameter’s CAN Index by
Driver_X_Min_Current
11 = 0x312A 0x00
12 = 0x312B 0x00
0 – 3000 mA
0 – 3000
0 mA
0
Minimum current that a 0.1% command will effectuate. (A value
of 0 will turn off the driver).
X= 11 or 12 for the VCL name
Driver_X_Min_Current
Reference the
Driver_11_Command.
Dither Period
Driver_X_Dither_Period
Parameter’s CAN Index by
Driver_X_Dither_Period
11 = 0x318A 0x00
12 = 0x318B 0x00
2 – 1000 ms
2 – 1000
1000 ms
1000
Periodicity (frequency) of the applied dither.
X= 11 or 12 for the VCL name
Driver_X_Dither_Period
Dither provides a small amount of cyclically changing current
to vibrate the solenoid and thus keep it from “sticking” in one
position. Without dither, it is harder to make small adjustment in
the proportional valve position. Dither has both a frequency and
amount.
OUTPUTS — HALF-BRIDGE DRIVERS, cont’d
