Manual SCA-LE-30-03
V 0.9
10/02 page 7
e-motion Gesellschaft für Antriebstechnik mbH, Zettachring 2, D-70567 Stuttgart, Germany
Tel.: +49-(0)711-7221535, Fax.: +49-(0)711-7221548 E-mail: [email protected]
5.1.3. Encoder (15) - (20)
The encoder inputs are to be connected to an incremental encoder with a two, respectively three
channel output. Channel A and B should have an electrical phase shift of 90 degrees. Take care that
channel A is running in front of channel B when turning the motor shaft clockwise. Otherwise the
speed loop is open and speed control is not possible.
It is possible to operate this drive with an encoder with single ended signals of the or with differential
signals or line driver corresponding to the RS 422 standard.
Two channels (A and B) are required, a third channel (I) can be connected but it is not necessary.
This is also valid for the inverted signals (/A, /B, /I)
Operation with 5 V encoder type:
Input voltage range low signal:
0 V ... + 1,7 V
Input voltage range high signal:
+3,0V ... +5 V
Operation with 24 V encoder type:
Input voltage range low signal:
0 V ... + 5,5 V
Input voltage range high signal:
+13,0V ... +24 V
5.1.4. + Vcc (26)
5.1.5. Power GND (25)
Power supply connector.
The encoder section of this drive has to be connected to DC- Power supply voltage in the range of
11-30 V. It is useful to connect these inputs in parallel directly to the power supply inputs of the power
stage section If a 24V encoder type should be used, the Input
24V Opt. In (28)
, has to be connected
to 24V DC. In this case an additional connection of the pin
+Vcc (26)
is not necessary.
Although this pin (25) is connected internally to the other two Gnd pins
(21)
and
(27)
, this one
Power
GND (25)
, has to be used for the power supply of the encoder module section because of he current
occurring to feed this subsytem
5.2. Outputs
5.2.1. Auxiliary voltage output Gnd (21)
5.2.2. Auxiliary voltage output + 5V / 100mA (22)
The auxiliary voltage output
+ 5V / 100mA (22)
provides 5V DC, in reference to the auxiliary voltage
output
Gnd (21)
. This voltage can be used for an encoder with an input of 5V.
5.2.3. + Tacho out (24)
5.2.4. – Tacho out (23)
The encoder module provides an analogue output voltage similar to an analogue output voltage of a
tacho. These voltage signals have to be connected directly to the according terminals of the power
stage section.
