Trane TR1 6002, Installation And Operation Manual

Page: 65 / 118

65
WARNING
!
Unintended Start!
In Sleep Mode, a start signal via digital inputs
may cause drive to start at any time. The drive,
motor, and any driven equipment must be in
operational readiness. Failure to be in
operational readiness in Sleep Mode could
result in death, serious injury, or equipment or
property damage.
403 Sleep Mode Timer (SLEEP MODE TIMER)
Value:
0 to 300 seconds (OFF) ★ OFF
Function:
This parameter enables the drive to stop the motor if the load on the
system is minimal. The timer starts when the output frequency drops
below the frequency set in parameter 404,
Sleep Frequency . When the
time set has passed, the drive will stop. The drive will restart when the
theoretical output frequency exceeds the frequency set in parameter
405, Wake-up Frequency .
Description of choice:
Select OFF if this function is not wanted.
Set the amount of time that the drive must run at or below the sleep
frequency before it stops and “goes to sleep.”
404 Sleep Frequency (SLEEP FREQUENCY)
Value:
0.0 to parameter 405, Wake-up Frequency ★ 0.0 Hz
Function:
When the output frequency falls below this set value, the timer set in
parameter 403, Sleep Mode Timer , will start. The drive’s speed will
follow the reference signal until the timer times out.
Description of choice:
Choose the output frequency at which the drive will activate the sleep
mode timer. It is generally best to set SLEEP FREQUENCY equal to the
minimum frequency set in parameter 201, Output Frequency Low Limit
and parameter 204 , Minimum Reference. This is because the sleep
mode isn’t active until after the drive output frequency equals the sleep
frequency. If the sleep frequency is less than the minimums, the sleep
mode cannot activate.
405 Wake-up Frequency (WAKEUP FREQUENCY)
Value:
Parameter 404 to parameter 202 , Maximum Frequency
★ 60 Hz
Function:
When the theoretical output frequency exceeds the preset value, the
drive restarts the motor.
Description of choice:
Set the required frequency.
406 Boost Setpoint (BOOST SETPOINT)
Value:
0 to 200 % ★ 100 % of setpoint
Function:
This function can only be used if Closed Loop has been selected in
parameter 100, Configuration.
In some systems, it may advantageous to increase the set point of the
system before the drive stops the motor. This extends the time that the
drive will be stopped and reduces cycling of the motor.
Description of choice:
Set the required Boost Setpoint as a percentage of the resulting
reference under normal operation. 100% corresponds to the boost.
✭ I
ndicates factory default setting. Numbers in brackets [ ] represent selection as displayed on the serial bus.