Siemens 6RA70 specifications Operation with pulse encoder, Pulse encoder type Normal selection

5.2Operation with pulse encoder

P083 = 2: The actual speed is supplied by the pulse encoder (K0040)

P140 Selecting a pulse encoder type (pulse encoder types see below)

0	No encoder/"Speed sensing with pulse encoder" function not selected
1	Pulse encoder type 1	(Normal selection)
2	Pulse encoder type 1a	(Special encoder)
3	Pulse encoder type 2	(Special encoder)
4	Pulse encoder type 3	(Special encoder)

1.Pulse encoder type 1

Encoder with two pulse tracks mutually displaced by 90° (with or without zero marker)

Track 1

X173 28, 29

Track 2

X173 30, 31

Zero marker	Heidenhain ROD
X173 32, 33	Teldix Rotaswitch Serie 26

P141 Number of pulses of pulse encoder (in pulses/revolution)

P142 Matching to pulse encoder signal voltage

0Pulse encoder outputs 5 V signals (requires separate 5V encoder supply voltage)

1Pulse encoder outputs 15V signals (uses internal 15V encoder supply voltage)

CAUTION

Resetting parameter P142 to the alternative 5V setting does not switch over the supply voltage for the pulse encoder (terminals X173.26 and 27).

Terminal X173.26 always supplies +15V. An external voltage supply must be provided for pulse encoders requiring a 5V supply.

P143 Setting the maximum operating speed for pulse encoder operation (in revolutions/minute). The speed set in this parameter corresponds to an actual speed (K0040) of 100%.

5.3Operation without tachometer (EMF control)

P083 = 3: The actual speed is supplied from the “Actual EMF” channel (K0287), but scaled with P115.

P115 EMF at maximum speed (Note: EMF = Terminal voltage – IxR) 1.00% to 140.00% of rated converter supply voltage at r071.

5.4Freely wired actual value

P083 = 4: The actual value input is defined with P609.

P609 Number of connector to which actual speed controller value is connected.

Siemens Energy & Automation	8-11
SIMOREG DC Master Base Drive Panel	Operating Instructions