Argantix KDC 100-100, User Manual

Page: 67 / 137

User Manual
KDC Series II DC Power Supplies 57
4.8 Remote Output ON / OFF Control
Remote on/off (remote inhibit) control may be accomplished by contact closure or TTL/CMOS
voltage source. The output will remain OFF while the remote inhibit state is active. Once removed,
the output will resume the state (on or off) that was in effect when the remote inhibit was applied.
During the remote inhibit state, the on/off button on the front panel may still be used to toggle the
on/off state but the change of state will not take effect until the remote inhibit is released and will
not be reflected by the on/off LED until the remote inhibit is released. It is possible to query the
internal on/off state over the bus but the state of the remote inhibit cannot be queried. Thus, the
output state may be reported as on while the remote inhibit is active.
1. Remote on/off by contact closure. Output is OFF when contacts are closed. See Figure 4-9
for connection requirements.
2. Remote on/off control may be accomplished by a TTL/CMOS source. Application of a high
state TTL/CMOS voltage will turn off the power supply. See Figure 4-10 for connection
requirements.
15
ANALOG I/O
10 ISO RTN
ON/OFF 1
Figure 4-9: Remote On / Off Control by Contact Closure
15
ANALOG I/O
10 ISO RTN
ON/OFF 1
TTL\
CMOS
Figure 4-10: Remote On / Off Using Isolated TTL/CMOS Voltage Supply