Led Indicators; Soft Starter Setup; Preliminary Checks - Siemens SIKOSTART 3RW34 Betriebsanleitung

Setup and Operation
With the "close on fault" position selected, contact status is as follows:
Power off - contact is open
Power on - contact is open
Fault occurs - contact closes
The contact remains open on loss of power.
The factory settings for switch SW1 sections are:
SW1-4: close on fault (switch left)
SW1-3: In Line wiring (switch left)
SW1-2: no on delay (switch right)
SW1-1: no off delay (switch right)
7.2

LED Indicators

Two LED indicators are located above the potentiometers. These LEDs indicate soft starter status and fault
conditions as follows.
LEDs: The LEDs indicate both the function and the fault status of the unit. Both LEDs display three states as follows:
LED 1 (Top)
Constant Display Soft starter is ready for operation
Single Flashing
Double Flashing FAULT: EEPROM parity error
LED 2 (Bottom)
Constant Display Output voltage equals line voltage, i.e., motor is up to speed.
Single Flashing
Double Flashing FAULT: Shorted SCR.
*) no action to fault output
7.3

Soft Starter Setup

Before the initial startup, set the controls as follows:
1.
2. Set Start Time T1. This setting is application dependent, affected by load torque, motor voltage, and total inertia.
3. Set Initial Voltage U. The as-supplied setting is potentiometer setting 8; this corresponds to 56 % of U.
4. Set Stop Time T2. The 0 setting allows the load to coast to rest. If the soft stop feature is required for the
7.4

Preliminary Checks

20
FAULT: Main voltage phase loss*)
Output voltage is less than line voltage, i.e., motor is starting or stopping
Set switch SW1 sections in accordance with the application.
The as-supplied setting is 8; this corresponds to 15 seconds.
application, set T2 to a position other than "0". The factory setting is 0.
Hazardous voltage.
Will cause death or serious injury.
To avoid electrical shock or burn, turn off main and
control voltages prior to performing preliminary
checks.
DANGER
3ZX1012-0RW34-1AN1