Siemens 6RA70 Access authorization, Adjustment of converter rated currents, Input of motor data

1Access authorization

P051 . . . Key parameter

0Parameter cannot be changed

40Parameter can be changed

P052 . . . Selection of parameters to be displayed

0Only parameters that are not set to default are visible

3All parameters are visible

2Adjustment of converter rated currents

Base Drive Panels are designed to continuously operate at the converter US rated current and then provide 150% overload current for 60 seconds. In order to meet this requirement it is mandatory that P067 be set to a value of 5. The IEC Class 1 rating provides a higher continuous current but has no overload capability. The fuses, contactor, power terminals, and power wiring used on base drives have been selected based on the US rating. Failure to set P067 on Base Drive Panels to the US rating may cause damage to Base Drive Panel components and void warranty.

Set parameter P067 = 5 “U.S. Rating“.

Set parameter P075 = 1 to allow dynamic overload capability.

3Adjustment to actual converter supply voltage

P078.001 . . . Supply voltage for armature circuit (in volts)

P078.002 . . . Supply voltage for field circuit (in volts)

4Input of motor data

The motor data as given on the motor rating plate must be entered in parameters P100, P101, P102 and P114.

P100 . . . Rated armature current (in amps)

P101 . . . Rated armature voltage (in volts)

P102 . . . Rated field current (in amps)

P114 . . . Thermal time constant of motor (in minutes). If not known use the default 10-minute value.

5Actual speed sensing data

5.1Operation with analog tachometer

P083 = 1: The actual speed is supplied from the “Main actual value” channel (K0013) (terminals XT.103, XT.104)

P741 Tachometer voltage at maximum speed (– 270,00V to +270,00V)

8-10	Siemens Energy & Automation
	SIMOREG DC Master Base Drive Panel Operating Instructions