AMETEK Programmable Power XPF Serie Manuel D'instructions page 16

Releasing the LOCK key at any time while the display is flashing will abort the LOCK cancellation.
Attempting to select a different range with LOCK enabled is not allowed; if attempted, the
message
Unloc
is also on when these actions are attempted the message
display (accompanied by the output lamp flashing) followed by the message
LOCK lamp flashing).
The LOCK status at power on is the same as at last power off.
Voltage Tracking Mode
V can only be enabled or disabled with Output 2 (the Slave) off. If an attempt is made to set
TRACK
V with the Slave output on, then the message
TRACK
(accompanied by the output lamp flashing). Selecting V
Output 2 to 60V/10A; when V
V was selected.
TRACK
The LOCK function of the Master operates exactly as described previously and, because the
output voltage of the Slave tracks the Master, it controls the Slave output voltage as well. Note that
only the output voltage of the Slave is 'locked' when the Master LOCK is used; the current controls
of the Slave remain independent.
The LOCK key on the Slave output is ignored and pressing it causes the message
to be shown momentarily in the Slave display as a reminder.
It is possible to switch from V
Master settings stay 'locked' but the settings of the Slave are not locked.
The V status at power on is the same as at last power off.
TRACK
Synchronous Output On/Off Control
If the output is still on,
display, followed by flashing of the new 'unlocked' settings for 2-3
seconds (slowly at first, then faster) before the change is finally
implemented; the LOCK lamp goes off when the change is made.
is shown briefly in the display and the LOCK lamp is also flashed. If the output
Pressing V
TRACK
remain electrically isolated but the Voltage controls of Output 1 (the
Master) set an identical voltage on Output 2 (the Slave).
The Current controls of Master and Slave remain independent.
The electrical isolation permits the two outputs to be connected to
provide, for example, tracking voltages of opposite polarity or identical
voltages connected to different system references (e.g. digital ground
and analogue ground).
Tracking is also useful when the outputs are connected in parallel.
is cancelled the Output 2 range reverts to that set before
TRACK
back to Independent with LOCK still set on the Master. The
TRACK
The SYNCHRONOUS ON/OFF key is in addition to the individual
OUTPUT switches and permit both outputs to be turned on or off
synchronously with a single key press. Since this key turns both outputs
on or off with alternate presses it is necessary for both outputs to be in the
same state (i.e. both on or both off) before the key is used. Pressing the
key with one output on and one output off will have no effect.
(output on) will flash twice in the
OP on
turn oFF
selects voltage tracking mode. The two outputs
is shown in the display
turn oFF
automatically sets the range of
TRACK
is first shown in the
Unloc (with the
In trac
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