Select Relay Functions/Signals - Siemens SIMODRIVE 611 Planning Manual

5 Control Modules
5.5 Induction motor control with analog setpoint interface 6SN1122–0BA1_–0AA_
5.5.2
Table 5-14
Select relay
n =n
act set
(ramp–up completed)
n =n (actual)
act set
5
|M | < M
d dx
|n | < n
act min
|n | < n
act x
2
I t alarm
Motor overtemperature
alarm
Heatsink overtempera-
ture, alarm
Variable relay function
(max. 2 terminals)
Motor 1/2/3/4 active
5-120

Select relay functions/signals

The select relay terminals A11 to A61 (max. 6) can be freely programmed. A
control parameter is assigned to every select relay, in which the code number of
the selected function is entered.
Select relay functions/signals
The relay pulls–in, if the ramp–up sequence has been completed after a setpoint step.
The signal is not withdrawn as a result of speed fluctuations due to load surges.
The relay pulls–in, if the actual value lies within a tolerance bandwidth of the setpoint.
Speed fluctuations due to load surges can cause the signal to withdrawn.
The relay pulls–in, if the actual torque falls–below the threshold which has been para-
meterized (this becomes active for "ramp–up completed" after a time which can be
parameterized).
The relay pulls–in, if the speed actual value falls below the threshold which can be para-
meterized.
The relay pulls–in, if the speed actual value falls below the threshold which can be para-
meterized.
The relay drops out when the parameterized I
The relay drops out for an overtemperature condition. If the temperature continues to
increase, an
additional fault message is output and the drive pulses are canceled after a para-
meterizable time.
The relay drops out, if the main heatsink temperature switch of the power module
responds. After 20 s the drive shuts down and a fault signal is output.
Any control program variable can be monitored using this function.
The relay pulls–in, if motor 1/2/3/4 is active.
Function
2
t limit of the motor is exceeded.
 Siemens AG 2001 All rights reserved
SIMODRIVE 611 Planning Guide (PJU) – 05.01 Edition
05.01