Polyphase System; Figure 2-3 System Cable Connection Diagram - NF DP420LS Instruction Manual

2. Preparation before Use

2.5.2 Polyphase System

L2
System Cable (1P3W)
Single-phase three-wire system
Optional System Cable should be connected to the SYSTEM I/O connector of this product. The
cabinet which the L1 connector of the System Cable is connected to becomes L1 phase, and the
output terminals Hi and Lo correspond to the L1 and N terminals, respectively. This is same for L2
and L3 phases. This product recognizes the polyphase system by checking the state of the system
cable connection at power-on, so connect the System Cable before turning on the power.
-------- Notes ------------------------------------------------------------------------------------------------------------
 The polyphase system can be configured only when the same models are connected with a
System Cable.
 The products with different model names cannot be connected.
 You cannot connect outputs in parallel to boost up a single-phase output.
 Turn on all power supplies within 20 seconds.
 The L2 and L3 cabinets in a polyphase system are restricted in their operation as follows:
 Cannot use the communication interface (USB, RS232, GPIB, LAN).
 Cannot use the external control function.
 Cannot use a USB memory.
 Cannot connect and use the remote controller.
 Starts according to the contents of the Basic Setting Memory No.1 of the L1 cabinet.
 Does not accept the control panel key operations except for special cases.
 Can only display the output measured value of their own cabinet in the measurement display.
The display format of the measured value (3.4.10) follows that of the LI cabinet.
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14
L1

Figure 2-3 System Cable connection diagram

L3 L2
System Cable (3P4W)
Three-phase four-wire system
PROGRAMMABLE AC POWER SOURCE
L1