TD350 Series VFD Optional peripheral accessories
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Appendix D Optional peripheral accessories
D.1 What this chapter contains
This chapter describes how to select optional accessories of TD350 series VFDs.
D.2 Wiring of peripheral accessories
The following figure shows the external wiring of a TD350 series VFD.
Power supply
Breaker
Input filter
Input reactor
Earth
DC reactor
LCD keypad
P1
+
+
-
PB
Brake
resistor
Brake unit
PC
RS485–
RS232
converter
Output filter
Output reactor
Motor
Earth
+
Upper PC
software
485+
485-
Standard
Note:
1. The VFDs of 220V (≤15kW),460V (≤30kW), and 575V (≤18.5kW) are configured with built-in
brake units.
2. The VFDs of 220V (18.5–55kW), 460V (≥37kW), and 575V (≥22kW) are configured with P1
terminals and are connected to external DC reactors.
3. The brake units are TECHTOP DBU series standard brake units. For details, see the DBU
operation manual.
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