YOKOGAWA 2558A User Manual

2-8
IM 2558A-01EN
2.6 Synchronous Operation
You can connect multiple 2558As together and output voltage or current in sync with the frequency of
the master 2558A.
Synchronous operation is used when using two 2558As, one as a voltage generator and the other as
a current generator, to calibrate a power meter or when using two 2558As in parallel to generate large
current.
External I/O Connection
Connect the signal output terminals (I and Q) on the rear panel of the master 2558A to the external
input terminals (I and Q) of the slave 2558A.
Setup example:
Frequency set to 60 Hz
I I QQ
EXT 1
OSC OUTPUT
EXT OSC INPUT
I I QQ
EXT 1
OSC OUTPUT
EXT OSC INPUT
I I QQ
EXT 1
OSC OUTPUT
EXT OSC INPUT
2558A (Master)
2558A (Slave1)
2558A (Slave2)
Q(sin)
I(cos)
Q(sin)
I(cos)
Setup example:
Frequency set to EXT2
Setup example:
Frequency set to EXT2

YOKOGAWA 2558A Specifications

General

Brand	YOKOGAWA
Model	2558A
Category	AC Power Distribution
Language	English