EM11 User’s Manual
3. Installation of Frequency Inverter
29
Type
Terminal
Symbol
Terminal
Name
Terminal function description
Digital
output
DO1-CME
Digital output
1
Optical coupling isolation, dual polarity open collector
output.
Output voltage range: 0V~24 V
Output current range: 0mA~50 mA
Note
that CME and COM are internally insulated, but they
are shorted by jumper externally by factory default. In this
case DO1 is driven by +24 V, If you want to drive DO1 by
external power supply, please remove jumper between
CME and COM.
FM- COM
High Speed
Pulse Output
Terminal
It is set by b4-00 (FM terminal output mode selection)
As high-speed pulse output, the maximum frequency hits
100 kHz.
As open-collector output, its function is the same as that of
DO1.
Relay
output
FM- COM
High Speed
Pulse Output
Terminal
It is set by b4-00 (FM terminal output mode selection)
As high-speed pulse output, the maximum frequency hits
100 kHz.
As open-collector output, its function is the same as that of
DO1.
TA-TB NC
terminal
Contact driving capacity: 250 VAC, 3 A, COSø = 0.4
DC 30 V, 1 A
Auxiliary
interface
TA-TC NO
terminal
JP1
Extension
card interface
Connect to an optional card (I/O extension card, PLC card
and various bus cards)
J8
PG card
interface
Support various types of PG cards: OC, differential, UVW
ABZ and resolver.
3.10.4 Wiring of Analog Input Terminals
When the voltage signal is used as analog input, it is vulnerable from outside interference. Please use
shielding cable, and ensure that the shielding cable reliably connect to the grounding. The cable should be
as short as possible, and keep away from power lines. In serious interference occasions, you might consider
to add a filter capacitor or ferrite core in signal cable.
Diagram 3-13 Wiring of analog input terminals
3. Installation of Frequency Inverter
EM11 User’s Manual
30
3.10.5 Wiring of Multi-functional Input Terminals
Diagram 3-14 Wiring of digital input terminals in four different modes
3.10.6 Wiring of digital output terminals when using internal and external power supply
3-15 Internal power supply wiring 3-16 External power supply wiring
Note:
When external power supply is adopted, please connect negative end of external power supply with
terminal COM. The maximum current of open-collector output is 50mA.If the external load is a relay,
