Trane VarioTrane TR1 2800 Series, Руководство по эксплуатации

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If the active motor current is below 10%, the motor
voltage will be decreased by the speed mentioned
above until the voltage reaches the setting for Par.
117. If the active motor current comes over 20% the
voltage will be increased by the above mentioned
speed. If the active motor current reaches 40% the
motor voltage will be increased immediately to nor-
mal motor voltage.
The reduction in motor voltage depends on the pa-
rameter 117 setting.
Description of choice:
Set the grade of Motor current [Imact] influence on
the U/F ratio between 0% (OFF) and 100%. 100% cor-
responds to 50% reduction of U/F ratio. Default value
is OFF.
119 High start torque
Value:
0.0 - 0.5 sec.
0.0 sec.
Function:
To ensure a high start torque approx. 1.8 x I INV. can
be permitted for max. 0.5 sec. The current is, howev-
er, limited by the frequency converter's (inverter's)
safety limit. 0 sec. corresponds to no high start tor-
que.
Description of choice:
Set the necessary time for which a high start torque
is required.
120 Start delay
Value:
0.0 - 10.0 sec.
0.0 sec.
Function:
This parameter enables a delay of the start-up time
after the conditions for start have been fulfilled. When
the time has passed, the output frequency will start
by ramping up to the reference.
Description of choice:
Set the necessary time before commencing to accel-
erate.
121 Start function
Value:
DC hold during start delay time
(DC
HOLD/DELAY TIME) [0]
DC brake during start delay time
(DC BRAKE/DELAY TIME)
[1]
Coasting during start delay time
(COAST/DELAY
TIME) [2]
Start frequency/voltage clockwise
(CLOCKWISE OPERATION)
[3]
Start frequency/voltage in reference direction
(VERTICAL
OPERATION) [4]
Function:
This is where to choose the required mode during the
start delay time (parameter 120
Start delay time ).
Description of choice:
Select DC hold during start delay time [0] to energize
the motor with a DC hold voltage during the start de-
lay time. Set voltage in parameter 137
DC hold volt-
age .
Choose DC brake during start delay time [1] to energize
the motor with a DC brake voltage during the start
delay time. Set voltage in parameter 132
DC brake
voltage
.
Choose Coasting during start delay time [2] and the
motor will not be controlled by the adjustable fre-
quency drive during the start delay time (inverter
turned off).
Choose
Start frequency/voltage clockwise [3] to obtain
the function described in parameter 130 Start fre-
quency and 131 Voltage at start during start delay
time. Regardless of the value assumed by the refer-
ence signal, the output frequency equals the setting
in parameter 130
Start frequency
and the output volt-
age will correspond to the setting in parameter 131
Voltage at start .
This functionality is typically used in hoist applica-
tions. It is used in particular in applications in which
a cone anchor motor is applied, where the direction
of rotation is to start clockwise followed by the refer-
ence direction.
Select
Start frequency/voltage in reference direction [4]
to obtain the function described in parameter 130
Start frequency
and 131
Voltage at start
during the start
delay time.
The direction of rotation of the motor will always fol-
low in the reference direction. If the reference signal
equals zero, the output frequency will equal 0 Hz,
while the output voltage will correspond to the set-
ting in parameter 131
Voltage at start . If the reference
signal is different from zero, the output frequency will
equal parameter 130
Start frequency and the output
TR1 2800 Series VFD 27
Programming