Hitachi S1 Series User Manual

S1 series standard inverter
-226-
PB
External brake resistor
+
Installation of brake units
 (+) and (-) are the terminals for connecting brake units.
 The connection cables between the (+) and (-) terminals of an inverter and
those of a brake unit must be shorter than 5 m, and the connection cables
between the BR1 and BR2 terminals of a brake unit and the terminals of a
brake resistor must be shorter than 10 m.
The following figure shows the connection of one inverter to a dynamic brake unit.
External brake resistor
DBU
brake
unit
(+)
DC+
(-)
DC-
BR1 BR2
(-)
PE
(-)
+ + + + + + + + +
+ + + + +

Hitachi S1 Series Specifications

General

Output Frequency	0 - 400 Hz
Overload Capacity	150% for 60 seconds
Frequency	50/60 Hz
Control Method	Sensorless Vector Control
Protection Functions	Overcurrent, Overvoltage, Undervoltage, Overheat, Short Circuit
Communication	RS485, Modbus RTU
Output Voltage	3-Phase 200-240VAC, 3-Phase 380-480VAC (Matches Input Voltage)
Cooling Method	Fan Cooled