NORD Drivesystems BU0700 - Manual (Page 55)

3.3 Special extension unit
BU 0700 GB-1411 Subject to technical alterations 55
3.3.2 Encoder I/O
(SK XU1-ENC, Option)
The special extension (EXtension Unit) encoder I/O offers the possibility of
connecting an incremental encoder with a TTL signal level. The incremental
encoder must be mounted directly on the motor shaft.
This accessory enables highly accurate speed control from standstill to double
the rated speed.
This option is especially recommended for lifting applications as it provides the
best load control.
Connection details can also be found in Chapter 3.5.
Maximum connection cross-section of the control leads:
Connector Functions Maximum cross-section Parameter
X11.1 Power supply and digital input 1.5 mm
2
P300 ... P330
X11.2 Incremental encoder 1.5 mm
2
NOTE: All control voltages are based on a common reference potential!
Potentials AGND /0V und GND /0V are internally linked in the device.
Max permitted current loading from all current sources = 300mA
Floating contacts or
output of a PLC: 2,5 ... 33V
Digital input 13 (P330)
Power supply:
5V / 15V,
 max. 300mA
Incremental encoder input:
TTL, RS 422,
500
– 8192 pulse/revolution
X
11
.1
X
11
.2
42 VO +15V
41 VO +5V
40 GND /0V
33 DIG IN 13
51 ENC1 A+
52 ENC1 A-
53 ENC1 B+
54 ENC1 B-