Elife UNIDRIVE M series, Reference Manual

Page: 34 / 84

Please pay particular attention when wiring CANopen
®
connection: at both ends
there must be a
120Ω
resistor and the bus length must be the following:
B
IT RATE
B
US LENGTH
1 Mbit/s 25 m
500 Kbit/s 100 m
250 Kbit/s 250 m
125 Kbit/s 100 m
DEVICE 1 DEVICE 2 DEVICE 127
120 Ohm 120 Ohm
2.3.5 RS232 Mode
The RS232 Mode allows you to drive your motor via Telemetry Panel (See Chapter
4) or send the control commands
2
to the UNIDRIVE through the RS232 protocol.
This operating mode can be useful for testing your motor, without worrying about
other devices (e.g: potentiometer) or other controllers (e.g: PLC) (See Section
4.2.4). See Figure 2.12 for wiring diagrams for this operating mode and Table 2.9
for a description of inputs and outputs.
Table 2.9:
UNIDRIVE I/O definitions for RS232 Mode.
P
IN
I/O
T
YPE
N
AME
D
ESCRIPTION
26 IN6 EMERGENCY
Emergency input should always be
supplied, otherwise UNIDRIVE stops
motor rotation and unlocks motor brake.
Mandatory
29 OUT4 ALARM
Alarm output, it changes its current state
whenever an alarm is present. See Section
3.4.1, Pag. 41
2
For further information, see UNIDRIVE - RS232 Communication Protocol document
30
Chapter 2
Installation and Wiring