4 — PROGRAMMABLE PARAMETERS
Curtis 1239E-1269E Manual, os 37.0 RevA – May 2021
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pg. 46
CURRENT LIMITS MENU
PARAMETER ALLOWABLE RANGE DESCRIPTION
Drive Current Limit
Drive_Current_Limit
0x305B 0x00
5 – 100%
1638 – 32767
Sets the maximum RMS current the controller will supply to the motor
during drive operation, as a percentage of the controller’s full rated current.*
Reducing this value will reduce the maximum drive torque.
NOTE: Changing this parameter requires the re-setting of the ACIM FW
Base Speed parameter.
Regen Current Limit
Regen_Current_Limit
0x305C 0x00
5 – 100%
1638 – 32767
Sets the maximum RMS regen current, as a percentage of the controller’s full
rated current.* The regen current limit applies during neutral braking, direction
reversal braking, and speed limiting when traveling downhill.
Brake Current Limit
Brake_Current_Limit
0x305D 0x00
5 – 100%
1638 – 32767
Sets the maximum RMS regen current during braking when a brake command
is given, as a percentage of the controller’s full rated current.* Typically the
brake current limit is set equal to the regen current limit. The brake current
limit overrides the regen current limit when the brake input is active.
Interlock Brake Current Limit
Interlock_Brake_Current_Limit
0x309D 0x00
5 – 100%
1638 – 32767
Sets the maximum RMS regen current during interlock braking, as a
percentage of the controller’s full rated current.*
* The full rated current depends on the controller model; see specifications in Table D-1 for the rated current of the controller model number. Note that
the maximum current is capped for some models.
POWER LIMITING MAP MENU
PARAMETER ALLOWABLE RANGE DESCRIPTION
PL Nominal Speed
PL_Nominal_Speed
0x305E 0x00
100 – 10000 rpm
100 – 10000
Sets the base speed that will be used in the drive limiting map and regen
limiting map.
NOTE: Changing this parameter requires the re-setting of the ACIM FW
Base Speed parameter.
Delta Speed
PL_Delta_Speed
0x305F 0x00
50 – 1000 rpm
50 – 1000
Sets the width of the delta increment that will be used in the drive limiting
map and regen limiting map.
Quick Links:
Figure 15 Drive Limiting
map p.47
Figure 16 Regen Limit map p.48
ACIM FW Base Speed p.59
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