2-13
Use suitable circuit breaker or fuse listed in this manual for UL’s listing purpose.
Otherwise, there is a danger of fire.
5) Connecting power to the control circuit, separating from main power
When the protection circuit of inverter is activated and the electromagnetic contactor on the input supply
to the inverter isolates the power supply, the control circuit power supply from the inverter will also switch off
and the alarm output signal will not be hold. The power terminals R0 and T0 are designed to allow a supply to
go direct to the control circuit and therefore keep the alarm output signal on. In this case, please connect
power terminals R0 and T0, to the primary side of the electromagnetic contactor. ( inverter unit side of ACL,
EMI filter, on using input ACL, EMI filter).
(Connection)
2.2.3 Terminal
Connection Diagram
(1) Wiring
1. Both the CM1 and L terminal is insulated to both the common terminal of the input and output
signals. Do not short or earth these common terminals.
2. Use twisted screened cable, for the input and output wires of the control circuit terminals. Connect
the screen to the common terminal.
3. Limit connection wires to 20m. When it is necessary to wire over 20m, use a VX applied controller
RCD-A (Remoter operation bar) or a CVD-E (Insulated signal transducer).
4. Separate the control circuit wiring from the main power and relay control wiring.
5. If control and power wires must cross make sure they cross at 90 degrees to each other.
6. When connecting a thermistor to the TH and CM1 terminal, twist the thermistor cables separate
from the rests.
7. When using relays for the FW terminal or an intelligent input terminal uses a control relay as they
are designed to work with 24Vdc.
8. When the relay is used as an intelligent output, connect a diode for surge protection parallel to the
coil.
9. Do not short the analogue voltage terminals H and L or the internal power terminals PV24 and
CM1. There is risk of Inverter damage.
TH
4
5
FW
PLC CM112C 12A
Thermistor
Sequence
[2] Take off the wire of J51.
[1] Remove the wires connected.
[3]
Connect power supply for control
circuit to power terminals.
J51
WARNING
The specification of the receiving voltage
200
~
240V±10%(50/60Hz±5%)
(DC282
~
339V)
380
~
480V±10%(50/60Hz±5%)
(DC537
~
678V)
Chapter 2 Installation and Wiring