VLT
®
Series 3500
75
★
= ROM default setting.
✔
= Normal Danfoss setup. Text in ( ) = display text. Figures in [ ] are used when communicating with the bus.
315 Motor Thermal Protection
(MOTOR THER)
Value:
Off (PROTECT-OFF)
[0]
Warning 1 (WARNING 1)
[1]
★
Trip 1 (TRIP 1)
[2]
Warning 2 (WARNING 2)
[3]
Trip 2 (TRIP 2)
[4]
Warning 3 (WARNING 3)
[5]
Trip 3 (TRIP 3)
[6]
Warning 4 (WARNING 4)
[7]
Trip 4 (TRIP 4)
[8]
Function:
The drive calculates whether the motor temperature ex-
ceeds the permissible limits. The calculation is based on
1.16 x rated motor current, as set in parameter 107. Four
separate calculations are possible. One calculation can be
chosen for each setup, or the same calculation can be used
in several setups. Warning 1 and Trip 1 refer to the motor
settings in setup 1, etc. It is possible to monitor the same
motor in several setups, or up to four different motors can
be monitored.
Description of choice:
Select
Off (OFF) if no warning or tripping is required.
Select
Warning if only a warning is to be displayed when
the motor is overheated. The drive can be programmed to
give an external warning through the signal outputs set by
parameters 407 through 410.
Select
Trip if a fault trip is desired when the motor is over-
heated. The drive can be programmed to give an external
indication of the trip through the signal outputs set by pa-
rameters 407 through 410.
316 Relay ON Delay (RELAY ON D)
Value:
000.00 to 100.00 secs.
★
000.00 secs.
Function:
Relay output 01, which is connected to terminals 01, 02,
and 03 and controlled by parameter 409, can be pro-
grammed for a time delay. This has no effect on the opera-
tion of relay 04. No time delay for the operation of relay 04
is available.
Description of choice:
The setting of parameters 316 and 317 affects the duration
of the time delay.
317 Relay OFF Delay (RELAY OFF)
Value:
000.00 to 100.00 secs.
★
000.00 secs.
✔
002.00 secs.
Function:
See parameter 316.
Description of choice:
See parameter 316.