Curtis 1236SE User Manual

Curtis 1232E/34E/36E/38E & 1232SE/34SE/36SE Manual, os 30
59
24 NOVEMBER 2015
MOTOR: 0-ACIM: LOS MENU
ALLOWABLE
PARAMETER RANGE DESCRIPTION
LOS Upon Encoder Fault On / Off Limited Operating Strategy (LOS) is typically used to drive the vehicle back
LOS_Upon_Encoder_Fault On / Off to a repair center at very low speeds in the event the motor encoder fails.
LOS_Upon_Encoder_Fault_ Following an encoder failure ((either Encoder Fault (fault code 36) or
Bit0 [Bit 0] Stall Detected (fault code 73)), and after the Interlock is cycled, the vehicle
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enters LOS mode thus allowing drive without motor encoder feedback.
In LOS mode, the ability to achieve maximum torque—even for a very
short time—is considered more important than smoothness.
When LOS mode is entered, the Encoder LOS fault (fault code 93)
becomes active and the encoder fault ((either Encoder Fault (fault code
36) or Stall Detected (fault code 73)) is cleared.
When this parameter is programmed On, LOS mode will be entered in
the event of an encoder fault followed by an Interlock cycle.
When programmed Off, in the event of an encoder fault the encoder
fault remains and drive is disabled.
LOS Max Speed
 100–2000rpm ThisparameterindirectlydenesthemaximumspeedforLOSmodeby
Enc_LOS_Max_Speed 100 – 2000 setting the maximum frequency that corresponds to LOS Max Speed.
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In LOS mode the throttle commands a frequency that is interpolated linear-
lybetweenzero(atThrottleCommand=0%)andtheprogrammedLOS
Max Speed (at Throttle Command = 100%).
LOS Max Current
100 – 650 A In LOS mode, a partial or full throttle command will result in the maximum
Enc_LOS_Max_Current 1000 – 6500 current set by this parameter. This current setting is clamped by the
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  controller’sratedcurrent.
LOS Max Mod Depth 15 – 100 % In LOS mode, the maximum modulation depth acts to limit the current
Enc_LOS_Max_Mod_Depth 177 – 1182 at higher speeds. This parameter should be set such that the modulation
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depth limit is reached prior to the LOS Max Speed limit, so that the motor
current will fall off from LOS Max Current at higher speeds. This may allow
the vehicle to drive longer in LOS mode, as it lessens the chance of the
motor or controller overheating.
LOS Accel Rate
 2.0–15.0s Denestherate(inseconds)atwhichthefrequencyincreaseswhenfull
Enc_LOS_Accel_Rate 2000 – 15000 throttle is applied, while operating in LOS mode. This parameter should be
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set to a slow rate (high parameter value) so the frequency command has a
very slow slew rate to ensure that the max torque point is hit for a reason-
able period of time; this decreases the probability of going over the slip
curve, and allows ramps or obstacles to be overcome.
LOS Decel Rate
 2.0–15.0s Denestherate(inseconds)atwhichthefrequencydecreaseswhen
Enc_LOS_Decel_Rate 2000 – 15000 throttle is released, while operating in LOS mode.
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3 — PROGRAMMABLE PARAMETERS: Motor Parameters

Curtis 1236SE Specifications

General

Brand	Curtis
Model	1236SE
Category	Controller
Language	English