Fuji Electric FRENIC-HVAC User Manual page 56

Symbol Name
[Y1] Transistor
output 1
[Y2]
Transistor
output 2
[Y3] Transistor
output 3
[Y4] Transistor
output 4
[CMY] Transistor
output common
Functions
(1) Various signals such as inverter running, frequency arrival
and overload early warning can be assigned to terminals [Y1]
to [Y4] by setting function code E20 to E23. Refer to Chapter
6 "FUNCTION CODES" for details.
(2) It is possible to switch the logic value (1/0) for ON/OFF of the
terminals between [Y1] to [Y4], and [CMY]. If the logic value
for ON between [Y1] to [Y4] and [CMY] is 1 in the normal
logic system, for example, OFF is 1 in the negative logic
system and vice versa.
(Transistor output circuit specifications)
Photocoupler
Figure 2.8 Transistor Output Circuit
Item
ON level
Operation
voltage
OFF level
Maximum motor
current at ON
Leakage current
at OFF
Figure 2.9 shows examples of connection between the control
circuit and a PLC.
When a transistor output drives a control relay, connect
•
a surge-absorbing diode across relay's coil terminals.
When any equipment or device connected to the
•
transistor output needs to be supplied with DC power,
feed the power (+24 VDC: allowable range: +22 to
+27 VDC, 200 mA max.) through the [PLC] terminal.
Short-circuit between terminals [CMY] and [CM] in
this case.
Common terminal for transistor output signals
This terminal is electrically isolated from terminals [CM]s and
[11]s.
2-23
2.3 Terminal Specifications
<Control circuit>
Current
[Y1]
to
[Y4]
31 to 35 V
[CMY]
Max.
2 V
27 V
50 mA
0.1 mA