Sleep Mode
97
Table G Conditions Required to Start Drive
(1)(2)(3)
(1)
When power is cycled, if all conditions are present after power is restored, restart will occur.
(2)
If all conditions are present when [Sleep-Wake Mode] is “enabled,” the drive will start.
(3)
The active speed reference is determined as explained in the User Manual. The Sleep/Wake function and the
speed reference may be assigned to the same input.
(4)
Command must be issued from HIM, TB or network.
(5)
Run Command must be cycled.
(6)
Signal does not need to be greater than wake level.
Normal operation will require that [Wake Level] be set greater than or equal to
[Sleep Level]. However, there are no limits that prevent the parameter settings from
crossing, but the drive will not start until such settings are corrected. These levels
are programmable while the drive is running. If [Sleep Level] is made greater than
[Wake Level] while the drive is running, the drive will continue to run as long as the
analog input remains at a level that doesn’t trigger the sleep condition. Once the
drive goes to sleep in this situation, it will not be allowed to restart until the level
settings are corrected (increase wake, or decrease sleep). If however, the levels are
corrected prior to the drive going to sleep, normal Sleep/Wake operation will
continue.
Timers
[Wake Time]
[Sleep Time]
Timers will determine the length of time required for Sleep/Wake levels to produce
true functions. These timers will start counting when the Sleep/Wake levels are
satisfied and will count in the opposite direction whenever the respective level is
dissatisfied. If the timer counts all the way to the user specified time, it creates an
edge to toggle the Sleep/Wake function to the respective condition (sleep or wake).
On power up, timers are initialized to the state that does not permit a start condition.
When the analog signal satisfies the level requirement, the timers start counting.
Interactive functions
Separate start commands are also honored (including a digital input “start”), but
only when the sleep timer is not satisfied. Once the sleep timer times out, the sleep
function acts as a continuous stop. There are two exceptions to this, which will
ignore the Sleep/Wake function:
1.
When a device is commanding “local” control
2.
When a jog command is being issued.
Input
After Power-Up
After a Drive Fault
After a Stop Command
Reset by Stop-CF,
HIM or TB
Reset by Clear
Faults (TB)
HIM or TB
Stop
Stop Closed
Wake Signal
Stop Closed
Wake Signal
New Start or Run
Cmd.
(4)
Stop Closed
Wake Signal
Stop Closed
Analog Sig. > Sleep Level
(6)
New Start or Run Cmd.
(4)
Enable
Enable Closed
Wake Signal
(4)
Enable Closed
Wake Signal
New Start or Run
Cmd.
(4)
Enable Closed
Wake Signal
Enable Closed
Analog Sig. > Sleep
Level
(6)
New Start or Run Cmd.
(4)
Run
Run For.
Run
Rev.
Run Closed
Wake Signal
New Run Cmd.
(5)
Wake Signal
Run Closed
Wake Signal
New Run Cmd.
(5)
Wake Signal