S1 series standard inverter
-213-
Chapter 12 Optional peripheral accessories
12.1 What this chapter contains
This chapter describes how to select optional accessories of S1 series inverters.
12.2 Wiring of peripheral accessories
The following figure shows the external wiring of a S1 series inverter.
Power supply
Breaker
Input filter
Input reactor
Earth
DC reactor
LED 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. Inverters of 400 V, 18.5 kW to 110 kW are equipped with built-in DC reactors.
2. P1 terminals are equipped only for inverters of 400 V, 132 kW or higher, which enable the
inverters to be directly connected to external DC reactors.
3. The brake units HITACHI's DBU series standard brake units. For details, see the DBU operation
manual.
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