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Red Lion MDC User Manual

Page 23

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SETPOINT INCREMENT (INC SPT)

Only an external User Input can be used for this option. The currently

active speed or ratio setpoint is incremented when the User Input is made

active. If the input remains active for more than 5 display unit increments, the

scroll rate will progressively increase.

SETPOINT DECREMENT (DEC SPT)

Only an external User Input can be used for this option. The currently

active speed or ratio setpoint is decremented when the User Input is made

active. If the input remains active for more than 5 display unit increments, the

scroll rate will progressively increase.

PROGRAM DISABLE (PGM.DIS.)

Only an external User Input can be used for this option. When used with the

Program Disable DIP switch, this option can limit operator access to

programmable parameters (see Front Panel Accessible Programming With

Program Disable section). The program disable is maintained.

Additional Options Available For F1 & F2 Keys

RUN

Activation of a function key selected for RUN causes the MDC to

accelerate the motor from STOP mode to the current speed setpoint using the

current ramp rate.

RAMP STOP

Activation of a function key selected for R-STOP causes the MDC to

decelerate the motor from its current speed to STOP mode using the current

ramp rate.

FAST STOP

Activation of a function key selected for F-STOP causes the MDC to

execute a fast stop, taking the analog Drive Output signal immediately to zero

volts. Motor deceleration is limited only by the motor drive system. This is an

emergency stop function. The Drive Enable Output goes immediately to its

inactive state and may be used to engage braking or remove power from the

motor via an external relay.

JOG

The jog function only operates from the STOP mode. Pressing and holding a

function key selected for JOG causes the MDC to accelerate the motor to the

jog speed setpoint using the jog ramp rate. The motor remains at the jog speed

until the function key is released, at which point the MDC executes an F-STOP.

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