Mitsubishi Electric FR-D700 Series Instruction Manual page 19

Wire removal
Pull the wire with pushing the open/close button all the
way down firmly with a flathead screwdriver.
Open/close button
(3) Control circuit common terminals (SD, 5, SE)
Terminals SD, SE and 5 are common terminals for I/O signals. (All common terminals are isolated from each other.) Do not

earth them. Avoid connecting the terminals SD and 5 and the terminals SE and 5.
Terminal SD is a common terminal for the contact input terminals (STF, STR, RH, RM, RL) and the pulse train output

terminal (FM). The open collector circuit is isolated from the internal control circuit by photocoupler.
Terminal 5 is a common terminal for the frequency setting signals (terminals 2 or 4). It should be protected from external

noise using a shielded or twisted cable.
Terminal SE is a common terminal for the open collector output terminal (RUN). The contact input circuit is isolated from the

internal control circuit by photocoupler.
(4) Wiring instructions
It is recommended to use the cables of 0.3mm

The maximum wiring length should be 30m (200m for terminal FM).

Do not short across terminals PC and SD. Inverter may be damaged.

When using contact inputs, use two or more parallel micro-signal contacts or

twin contacts to prevent contact faults since the control circuit input signals are
micro-currents.
To suppress EMI, use shielded or twisted cables for the control circuit

terminals and run them away from the main and power circuits (including the
200V relay sequence circuit). For the cables connected to the control circuit
terminals, connect their shields to the common terminal of the connected control circuit terminal. When connecting an
external power supply to the terminal PC, however, connect the shield of the power supply cable to the negative side of the
external power supply. Do not directly earth (ground) the shield to the enclosure, etc.
Always apply a voltage to the fault output terminals (A, B, C) via a relay coil, lamp, etc.

When using an external power supply for transistor output, note the following points to prevent a malfunction caused by

undesirable current.
Do not connect any terminal SD on the inverter and the 0V terminal of the external power supply (when the sink logic is
selected).
Do not connect terminal PC on the inverter and the +24V terminal of the external power supply (when the source logic is
selected).
Do not install an external power source in parallel with the internal 24VDC power source (connected to terminals PC and
SD) to use them together.
Refer to Chapter 2 of the Instruction Manual (Applied) for the detail.
Flathead screwdriver
2 2
to 0.75mm gauge for connection to the control circuit terminals.
NOTE
 Pulling out the terminal block forcefully without pushing
the open/close button all the way down may damage the
terminal block.
 Use a small flathead screwdriver (Tip thickness: 0.4mm/
tip width: 2.5mm).
If a flathead screwdriver with a narrow tip is used,
terminal block may be damaged.
Products available on the market :(as of Feb. 2016)
Product Type
Flathead
SZF 0- 0,4 x 2,5
screwdriver
 Place the flathead screwdriver vertical to the open/close
button. In case the blade tip slips, it may cause damage
to inverter or injury.
Micro signal contacts
Wiring
Manufacturer
Phoenix Contact Co., Ltd.
Twin contacts
15
2