Programmable AC Source 61601/61602/61603/61604 User’s Manual
3-10
3.6.1 REMOTE INHIBIT
The output of the AC source can be inhibited by the external control or by manual trigger.
The remote inhibit signal is received from 9-pin male connector on rear panel (see Appendix
A). The user can set REMOTE INHIBIT on CONF functional list (see 3.6). There are three
states for the feature of remote inhibit : OFF, LIVE, and TRIG.
It is to disable the feature of remote inhibit.
The output of the AC source will be disabled if TTL signal is LOW, but will be
automatically recovered if TTL signal is HIGH.
The output of the AC source will be disabled if TTL signal is LOW, and will
remain the state even TTL signal becomes HIGH. The user has to press
ENTER to reset the AC source.
The procedures of setting from OFF to LIVE are shown as below:
1. Move the cursor to the command of "REMOTE
INHIBIT" to set inhibition by the TTL signal from REMOTE INHIBIT =OFF_
the external control.
2. Turn RPG to change the option from OFF to LIVE, REMOTE INHIBIT =LIVE
then press ENTER.
The remote inhibit is a TTL signal transferred via the special I/O
connector. For details please refer to pin assignment in Appendix A.
3.6.2 EXT. V, COUPLE
The AC source allows the user to make use of the controlled analog signal from external
devices for the setting of its output. The BNC connector of the EXT Vref on the rear panel
lets the user apply signal to the AC source for the setting of output voltage. The user can set
EXT. V and COUPLE on CONF functional list (see 3.6). There are two coupling mode to
present AC source output from external V reference: AC_AMPLIFIER and DC_LEVEL_CTL.
AC_AMPLIFIER: The output voltage (Vout) is the synthesis of voltage programming on
MAIN PAGE and the amplification of external V reference with
Voltage range from -10 V to 10 V. When Vac=0 and Vdc=0 on
MAIN PAGE,Vout can be calculated using the following formula :
Vout (dc) = Vref (dc) / 10 Vdc × 424.2 Vdc (300V RANGE)
Vout (dc) = Vref (dc) / 10 Vdc × 212.1 Vdc (150V RANGE)
POWER ON STATUS : Output = OFF [ CONF ]
Vac = 0.0 F = 60.00 Vdc = 0.0
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