ITEM C 3-Series User Manual

Product description
Page 32
3.2 Power supply
3.2.1 Three-phase AC power supply
The item Servo Positioning Controller C 3-Series fulfils the following requirements:
 Nominal frequency range 50-60 Hz ±10%.
 Surge rating for the potential combination with servo inverters. The item Servo Positioning Controller C 3-Series enables a
dynamic change in both directions between the motor and generator modes without any dead time.
 No parameterisation by the user required.
3.2.1.1 Switch-on behaviour:
 As soon as the item Servo Positioning Controller C 3-Series is supplied with mains power, the DC bus circuit is charged
(< 1 s) via the braking resistors while the DC bus circuit relay is deactivated.
 After the DC bus circuit has been charged, the relay responds and the DC bus circuit is coupled to the mains power
supply without any resistors.
3.2.2 DC bus circuit linking, DC supply
3.2.2.1 DC bus circuit linking
 It is possible to link multiple item C 3-Series if their nominal DC bus circuit voltage is identical.
Caution!
Operation with DC bus coupling together with devices of the item C 1-Series is not allowed.
3.2.2.2 DC supply
 Direct DC supply without a mains power connection via the DC bus circuit terminals is possible with voltages ≥ 60 VDC.
The digital motor temperature monitoring system (at socket [X6]) requires a DC bus circuit voltage of
230 VDC. Below this voltage, the system will always identify the digital motor temperature sensor as open.
3.2.3 Mains fuse
A slow-blow (B16), three-phase, 16 A automatic circuit breaker must be installed in the mains power supply line.

ITEM C 3-Series Specifications

General

Brand	ITEM
Model	C 3-Series
Category	Controller
Language	English