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Red Lion MDC User Manual

Page 16

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USER SETPOINTS IN MASTER MODE

Speed Setpoint 1 (S

1

)

Speed Setpoint 1 is one of two user selectable speeds used in “RUN” mode.

The speed value is entered in display units (user units) as defined in the

Program Scaling Menu. The value ranges from 0 to 99999, provided the

Display Unit Maximum set in Program Scaling is 99999. Otherwise, the speed

value is limited to the Display Unit Maximum. If a value greater than or equal to

the Display Unit Maximum is entered, the message “MAX RPM LIMIT”

flashes on the display and the maximum speed is automatically entered.

Speed Setpoint 2 (S

2

)

Speed Setpoint 2 is the second user selectable speed used in “RUN” mode.

A User Input must be configured to allow selection of Setpoint 1 or 2 for use

as the current speed setpoint. If no User Input is configured for setpoint

selection (SPT SEL), the factory default setting is Speed Setpoint 1 (see

Program User Menu for details).

Ramp Rate 1 (RAMP 1)

Ramp Rate 1 is used for acceleration and deceleration between “RUN” and

“STOP” modes or between speed setpoints. The ramp rate value is entered in

display units/second. For example, if the Display Units are RPM, then the

ramp rate is RPM/SEC. The value ranges from 1 to 99999, provided that it is

not greater than or equal to the internal limit of 20,000 feedback pulses per

second. If this occurs, the message “MAX RAMP RATE” flashes on the

display and the maximum ramp rate is automatically entered. A “0” value

may be entered, which automatically selects the maximum ramp rate.

Ramp Rate 2 (RAMP 2)

Ramp Rate 2 is the second user selectable ramp rate. A User Input must be

configured to allow selection of RAMP 1 or 2 for use as the current ramp rate.

If no User Input is configured for ramp selection (RAMP SEL), the factory

default setting is RAMP 1 (see Program User Menu for details).

Jog Speed (JOG SPD)

The Jog Speed setpoint is used in JOG mode (See JOG under Dedicated

Control Input Functions for details). The value entered is in display units with

the same range and limitations as Speed Setpoint 1.

Jog Ramp Rate (JOG RAMP)

The Jog Ramp Rate applies when entering JOG mode and accelerating to

the Jog Speed. The value entered is in display units/sec. with the same range

and limitations as Ramp Rate 1.

Alarm 1 (AL-1)

The Alarm 1 value is entered in display units. This value affects the Alarm

1 output. The alarm type is programmable and may be: High Speed, Low

Speed, Deviation, or Zero Speed. A Zero Speed alarm has no Value Edit

Menu. The value range for an alarm setpoint may be 0 to 99999, provided that

it is not greater than the internal equivalent of 20971 feedback pulses per

second. If this occurs, the message “SCALING LIMIT” is flashed on the

display and the maximum value is automatically entered.

Alarm 2 (AL-2)

The Alarm 2 value affects the Alarm 2 output. It is programmable and has

the same range and limitations as Alarm 1.

Error Gain (GAIN)

The Error Gain affects the closed loop response to a deviation from the

speed setpoint. It has a value range of 0 to 99. A “0” entry eliminates

correction for speed error. A “99” entry provides maximum correction for

speed error and is the factory default setting. If instability or oscillation in

motor speed occurs, this value should be reduced.

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