AMETEK MX Series Rev: AY - Manual (Page 92)

User Manual – Rev AY AMETEK Programmable Power
MX Series 92
CURR LIMIT Sets the current limit value for the current detection system.
When the load current value exceeds the set current limit, a
fault condition is generated. The actual response of the AC
Source to a current limit fault is determined by the protection
mode selected in the CONFIGURATION menu. (CC = Constant
Current, CV = Constant Voltage).
PROGRAM 2
PHASE Selects the phase angle between the external clock and the
output of the AC source. If the clock source is internal, this
parameter has no effect.
CLOCK MODE Selects internal or external clock source. The MX Series
controller uses an open-air crystal time base with an accuracy of
100 ppm. To improve output frequency stability and accuracy,
an external clock generator may be used.
VOLT MODE The MX Series offers three output modes, AC, DC and AC+DC.
The VOLT MODE field can be used to toggle between these
three output modes. Both the Knob and the +/- key may be used
to toggle through these three selections. In DC mode, no
frequency selection is possible and all maximum current and
power ratings are divided by two.
DC OFFSET When the AC+DC mode is selected, the VOLTAGE field in the
PROGRAM 1 screen is used to set the AC portion of the output
voltage. The DC OFFSET field in the PROGRAM 2 screen can
be used to set the DC offset level. Either the knob or the
decimal keypad may be used to set the DC offset level.
START ø Selects the start phase angle for output changes made to either
voltage or frequency. This allows changing the output at a
specific phase angle. The output on key also uses this phase
angle setting to program the output voltage up to the set level
after the output relay is closed. The default value for this field is
RANDOM.