6146/6156 DC Voltage/Current Generators Operation Manual
4.2.10 Operating Multiple 6146/6156
4-29
NOTE: The 6146/6156 has a Tsync (approx. 1ms) time delay from the external control signal input to the
operation start. Consider this time delay when using more than one 6146/6156 in synchronous
operation.
4.2.10.2 Serial Connection
Two 6156/6156 units serially connected can generate up to ±64 V/±0.22 A.
The following figure shows a connection diagram in which two units are serially connected using a 4-wire
connection. The SENSE connection is not required for a 2-wire connection.
Output voltage = No. 1 output voltage + No. 2 output voltage (for constant voltage)
Output current = The smaller of the currents set for No. 1 or No. 2 (for constant current)
Figure 4-17 Serial Connection
CAUTION:
1. If the load is short-circuited, reverse polarity voltage is applied to the 6146/6156 themselves. Depending on
the settings, an overload may be generated when a short-circuit occurs.
2. Only two units can be connected serially. Do not connect 3 or more units serially. If the load is short-circuited,
the maximum applicable voltage will be exceeded, and the 6146/6156 may be damaged.
3. When using constant current, the current setting becomes the smaller of the two current settings as shown in
Figure 4-17. The other becomes the constant voltage.
6146/6156 No.1
6146/6156 No.2
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