Details On The Control Circuit Terminals Of The Converter Unit (Fr-Cc2) - Mitsubishi Electric 800 Series Hardware Instruction Manual

 Safety stop signal
Terminal
Terminal name
symbol
Safety stop input
S1
(Channel 1)
Safety stop input
S2
(Channel 2)
Safety stop input
SIC
terminal common
Safety monitor
So (SO) output (open
collector output)
Safety monitor
SOC output terminal
common
2.6.2 Details on the control circuit terminals of the
converter unit (FR-CC2).
For the parameter details, refer to the FR-CC2 Instruction Manual.
 Input signal
Terminal
Type Terminal name
symbol
*1
Reset
RES
External thermal relay
*1
OH
input
*1
Contact input
RDI
Contact input
common (sink)
External transistor
SD common (source)
24 VDC power supply
common
External transistor
common (sink)
PC
Contact input
common (source)
24 VDC power supply Can be used as a 24 VDC 0.1 A power supply.
48
2. INSTALLATION AND WIRING
2.6 Control circuit
Terminal function description
Use terminals S1 and S2 to receive the safety stop signal input
from the safety relay module. Terminals S1 and S2 can be used
at a time (dual channel).
The Inverter judges the condition of the internal safety circuit from
the status (shorted/opened) between terminals S1 and SIC, or
between S2 and SIC. When the status is opened, the inverter
output is shut off.
In the initial status, terminal S1 and S2 are shorted with terminal
PC by shorting wires. Terminal SIC is shorted with terminal SD.
Remove the shorting wires and connect the safety relay module
when using the safety stop function.
Common terminal for terminals S1 and S2.
The output status varies depending on the input status of the
safety stop signals.
The output is in HIGH state during occurrence of the internal
safety circuit failure. The output is in LOW state otherwise.
(The open collector transistor is ON (conductive) in LOW state.
The transistor is OFF (not conductive) in HIGH state.)
Refer to the Safety Stop Function Instruction Manual if the output
becomes in HIGH state even though both terminals S1 and S2
are open. (Contact your sales representative for this manual.)
Common terminal for terminal So (SO).
Terminal function description
Use this signal to reset a fault output provided when a protective function
is activated. Turn ON the RES signal for 0.1 second or longer, then turn it
OFF.
In the initial setting, reset is always enabled. By setting Pr.75, reset can
be enabled only at fault occurrence of the converter unit. The inverter
recovers about 1s after the reset is released.
The External thermal relay input (OH) signal is used when using the
external thermal relay or the thermal protector built into the motor to
protect the motor from overheating.
When the thermal relay is activated, the inverter output is shut off by the
external thermal relay operation (E.OHT).
Use Pr.178 to assign a function to the terminal.
Common terminal for the contact input terminal (sink logic) and terminal
FM.
Connect this terminal to the power supply common terminal of a transistor
output (open collector output) device, such as a programmable controller,
in the source logic to avoid malfunction by undesirable current.
Common terminal for the 24 VDC power supply (terminal PC, terminal
+24).
Isolated from terminals 5 and SE.
Connect this terminal to the power supply common terminal of a transistor
output (open collector output) device, such as a programmable controller,
in the sink logic to avoid malfunction by undesirable current.
Common terminal for contact input terminal (source logic).
Refer to
Rated specification
page
Input resistance: 4.7 kΩ,
input current: 4 to 6
mADC (with 24 VDC
input)
—
59
Permissible load: 24
VDC (27 VDC at
maximum), 0.1 A (The
voltage drop is 3.4 V at
maximum while the
signal is ON.)
—
Rated specification
Input resistance: 4.7
kΩ,
voltage when contacts
are open: 21 to 27
VDC,
current when contacts
are short-circuited: 4
to 6 mADC
—
Power supply voltage
range: 19.2 to 28.8
VDC, permissible load
current: 100 mA