Mitsubishi Electric FR-A820-00046 (0.4K) Instruction Manual page 76

 Wire removal
Pull the wire while pushing the open/close button all the way down firmly with a flathead screwdriver.
NOTE
• Pulling out the wire forcefully without pushing the open/close button all the way down may damage the terminal block.
• Use a small flathead screwdriver (tip thickness: 0.4 mm / tip width: 2.5 mm).
If a flathead screwdriver with a narrow tip is used, terminal block may be damaged.
Commercially available products (as of February 2016)
Product name
Driver
• Place the flathead screwdriver vertical to the open/close button. In case the blade tip slips, it may cause an inverter damage
or injury.
 Common terminals of the control circuit (SD, PC, 5, SE)
• Terminals SD (sink logic), PC (source logic), 5, and SE are common terminals (0 V) for I/O signals. (All common terminals
are isolated from each other.) Do not earth (ground) these terminals. Avoid connecting terminal SD (sink logic) with
terminal 5, terminal PC (source logic) with terminal 5, and terminal SE with terminal 5.
• In the sink logic, terminal SD is a common terminal for the contact input terminals (STF, STR, STP (STOP), RH, RM, RL,
JOG, RT, MRS, RES, AU, and CS) and the pulse train output terminal (FM
the internal control circuit by photocoupler.
• In the source logic, terminal PC is a common terminal for the contact input terminals (STF, STR, STP (STOP), RH, RM,
RL, JOG, RT, MRS, RES, AU, CS). The open collector circuit is isolated from the internal control circuit by photocoupler.
• Terminal 5 is a common terminal for the frequency setting terminals (1, 2, and 4) and the analog output terminals (AM and
*2
CA ). It should be protected from external noise using a shielded or twisted cable.
• Terminal SE is a common terminal for the open collector output terminals (RUN, SU, OL, IPF, and FU). The contact input
circuit is isolated from the internal control circuit by photocoupler.
*1 Terminal FM is provided in the FM-type inverter.
*2 Terminal CA is provided in the CA-type inverter.
 Signal inputs by contactless switches
The contact input terminals of the inverter (STF, STR, STP (STOP), RH, RM, RL, JOG, RT, MRS, RES, AU, and CS) can be
controlled using a transistor instead of a contact switch as follows.
External signal input using transistor
(sink logic)
Open/close button
Flathead screwdriver
Model
SZF 0- 0,4 × 2,5 Phoenix Contact Co., Ltd.
+24 V
STF, etc
Inverter
SD
Manufacturer
*1
). The open collector circuit is isolated from
PC
STF, etc
External signal input using transistor
(source logic)
Inverter
+24 V
R
2. INSTALLATION AND WIRING
2.6 Control circuit
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