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31
Control circuit specifications
(4) Signal inputs by contactless switches
(5) Wiring instructions
1) It is recommended to use the cables of 0.3mm
2
to 0.75mm
2
gauge for connection to the control circuit terminals.
2) The maximum wiring length should be 30m (200m for terminal FM).
3) Do not short across terminals PC and SD. Inverter may be damaged.
4) Use two or more parallel micro-signal contacts or twin contacts to prevent
contact faults when using contact inputs since the control circuit input signals
are micro-currents.
5) Use shielded or twisted cables for connection to the control circuit terminals
and run them away from the main and power circuits (including the 200V relay sequence circuit).
6) Do not apply a voltage to the contact input terminals (e.g. STF) of the control circuit.
7) Always apply a voltage to the fault output terminals (A, B, C) via a relay coil, lamp, etc.
The contacted input terminals of the inverter (STF, STR,
RH, RM, AU) can be controlled using a transistor
instead of a contacted switch as shown on the right.
External signal input using transistor
+24V
STF, etc.
SD
Inverter
Micro signal contacts
Twin contacts
Содержание FR-F700PJ Series
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Страница 346: ...341 APPENDIX This chapter provides the APPENDIX of this product Always read the instructions before using the equipment ...