Wesley BC-620-4CA User Manual

Page 49

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Curtis 1234/36/38 Manual,

OS

11

45

2 3 J U LY 2 0 0 8 D R A F T

3 — PROGRAMMABLE PARAMETERS:

Brake Parameters

BRAKE MENU

ALLOWABLE

PARAMETER

RANGE

DESCRIPTION

Brake Pedal Enable

On/Off

Determines whether the brake input and algorithm are enabled, making

Brake_Pedal_Enable

On/Off

the brake throttle part of the motor control command.

OptionBits1 [Bit 3]

Brake Type

1–5

The 1234/36/38 controllers accept a variety of brake inputs. The brake type

Brake_Type

1–5

parameter can be programmed as follows:

1

2-wire rheostat, 5kΩ–0 input

2

single-ended 3-wire 1kΩ–10kΩ potentiometer,

0–5V voltage source, or current source

3

2-wire rheostat, 0–5kΩ input

4

(not applicable)

5

VCL input (VCL_Brake)

Note: Do not change this parameter while the controller is powering the motor.
Any time this parameter is changed a Parameter Change Fault (fault code 49)
is set and must be cleared by cycling power; this protects the controller and the
operator.

Brake Deadband

0–5.00 V

Brake_Deadband

0–32767

Brake Map

0–100 %

Brake_Map

0–32767

Brake Max

0–5.00 V

Brake_Max

0–32767

Brake Offset

0–100 %

Brake_Offset

0–32767

VCL Brake Enable

On/Off

When programmed On, the brake processing with fault detection will

VCL_Brake_Enable

On/Off

operate normally; however, the brake command (see Figure 14) will require

VCL_Brake_Enable_Bit0 [Bit 0]

VCL to define the connection between the OS_Brake and VCL_Brake
variables. This allows VCL flexibility and customization of throttle processing,
while still allowing Brake_Type 1–3 with brake fault detection.

The four Brake throttle adjustment parameters are the same as
their Drive throttle counterparts; see descriptions and Figure 13.

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