Sync time, Stop select 1, Dc hold time – Rockwell Automation 1336Z SPIDER - FRN 2.xxx-5.xxx User Manual

Page 85: Dc hold level

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Programming

7–13

Advanced Setup

[Sync Time]

The time it takes for the drive to ramp from the “held
frequency reference” to the “current frequency reference”
after the Sync input is de-energized. Refer to
Synchronized Speed Change Function on page

7–12

.

Parameter Number

307

Parameter Type

Read and Write

Factory Default

0.1 Second / Seconds x 10

Factory Default

0.0 Sec

Minimum Value

0.0 Sec

Maximum Value

6000.0 Sec

[Stop Select 1]

This parameter selects the stopping mode when the drive
receives a valid stop command unless [Stop Select 2] is
selected.

Parameter Number

10

Parameter Type

Read and Write

Factory Default

“Coast”

Units

Display Drive
“Coast” 0

Causes the drive to turn off
immediately.

“DC Brake” 1

Drive defluxes the motor and then
injects DC braking voltage into the
motor. Requires a value in both [DC
Hold Time] & [DC Hold Level].

“Ramp” 2

Drive decelerates to 0 Hz., then if [DC
Hold Time] & [DC Hold Level] are
greater than zero the holding brake
is applied. If the values equal zero,
then the drive turns off. Requires a
value in [Decel Time 1] or [Decel
Time 2].

“S-Curve” 3

Drive causes S Curve Ramp to 0 Hz
in [Decel Time 1] or [Decel Time 2] x
2.

“Ramp to Hold” 4

Drive decelerates to zero Hertz then
injects holding brake per [DC Hold
Level] (limited to 70% of drive rated
amps) until
a) a Start command is issued or
b) the Enable input is opened.

[DC Hold Time]

This value sets the amount of time that the
[DC Hold Level] voltage will be applied to the motor when
the stop mode is set to either “DC Brake” or “Ramp.” [DC
Hold Time] is ignored when [Stop Select 1] or [Stop Select
2] is set to “Ramp to Hold.”

Parameter Number

12

Parameter Type

Read and Write

Display Units / Drive Units

1 Second / Seconds x 10

Factory Default

0.0 Sec

Minimum Value

0.0 Sec

Maximum Value

90.0 Sec

[DC Hold Level]

This value sets the DC voltage applied to the motor to
produce the selected current during braking, when the stop
mode is set to either “DC Brake,” “Ramp” or “Ramp to Hold.”
If “Ramp to Hold” is the active stop mode, [DC Hold Level]
will be limited to the current listed in the Derating
Guidelines
(Appendix A), even if higher values are
programmed.

Parameter Number

13

Parameter Type

Read and Write

Display Units / Drive Units

1 % of [Rated Amps] / 4096 = 100%

Factory Default

0 %

Minimum Value

0 %

Maximum Value

150 %

ATTENTION: If a hazard of injury due to movement of equipment or material
exists, an auxiliary mechanical braking device must be used to stop the motor.

ATTENTION: This feature should not be used with synchronous or
permanent magnet motors. Motors may be demagnetized during braking.

!

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