Siemens SIRIUS 3RW55 - Page 135

Functions
7.12 Inputs
SIRIUS 3RW55 soft starter
Manual, 08/2018, A5E35630887002A/RS-AB/002
135
Input action
Description
Factory setting
DI1
DI2
DI3
DI4
No action
Input has no function.
x
x
Manual operation
local
You can only control the soft starter locally via the local interface, the
3RW5 HMI High Feature or via the digital inputs.
Emergency start In the case of some faults, the motor can be started via the
emergency start function despite a pending group fault. An
emergency start action is assigned to one input, and, for example,
"Motor CW > Parameter set 1" to another. The emergency start is
active as long as the input is activated. It can also be activated
during operation.
For more information, see Chapter Emergency start (Page 131).
Creep speed The motor starts with the values set in the "Creep speed
parameters" menu item when the "Creep speed" input and the
"Motor CW/CCW parameter set 1/2/3" input are activated at the
same time.
Quick-stop If the input is activated, normal tripping with the currently set
stopping function is executed. No group error appears and the quick
stop is executed independently of the control priority.
Reset You can acknowledge the fault after it has been remedied.
The "Reset" input is edge-controlled. The level change from 0 to
24 V DC is evaluated at the input. All other input functions are
evaluated at the already pending 24 V DC level.
x
Motor
CW
with parameter set 1
The motor starts with rotation in line phase direction
and stops with the values stored in the respective
parameter set.
x
with parameter set 2
with parameter set 3
Motor
CCW
with parameter set 1 This function is active only when the "Creep speed"
parameter or reversing mode with external reversing
contactors is active at the same time. The motor starts
with the values stored in the "Creep speed parameters"
menu item (with rotation opposite to the line phase
direction).
with parameter set 2
with parameter set 3
Motor standstill The 3RW55 soft starter evaluates the signal from an external motor
standstill detection at the input.
Use alternative
stopping mode
For more information, see Chapter Alternative stopping (Page 107).
Pump cleaning For more information, see Chapter Pump cleaning function
(Page 126).