MPCe/LPCe Users Manual
4
SAFE-CONN
When operated with SAFE-CONN safety interlocked pumps and cables, the DIGITEL MPCe and LPCe will not
allow high voltage operation when the high voltage cable is disconnected at either the pump or controller end.
When high voltage is operating the units automatically shut off high voltage and provide protection from possible
human shock hazard.
Set Point
Eight programmable set points, four relay controlled and four TTL controller, can be configured to either supply.
Hysteresis and control values can be programmed through the computer interface or keypad.
AUTOSTART/AUTORUN
AUTOSTART/AUTORUN determines optimum starting and operating conditions based the pump size entered
and then starts and monitors the pump down without assistance. In start mode, because an ion pump can draw
high currents, the controller goes through a protected-start process, monitoring current, voltage, power, and time.
If the pump starts properly, the controller automatically goes into run protection mode. If the pump does not start
properly — the controller puts the pump into a cool-down mode. If the pump does not start properly after three
tries, a message is displayed and the controller shuts down high voltage. The event log can be sued to determine
the sequence of messages that lead to the shut down.
The DIGITEL MPCe and LPCe continuously protect the ion pump during start-up and normal operation. If there is
a vacuum failure, the controller shuts down high voltage, thereby preventing serious damage. It can also detect
power failures and be configured to automatically restart high voltage after a power loss, if desired.
Remote TSP/NEG Control Option
The remote TSP/NEG option allows you to operate a TSP (titanium sublimation pump) or NEG (non-evaporable
getter) from the DIGITEL MPCe. All commands to operate the Remote TSP/NEG Control can be entered using
the DIGITEL MPCe display or through serial commands. It can operate in current or power control mode and can
be cycled based on time and pressure.
The option consists of:
•
Remote TSP/NEG Control unit
•
MPCe
J505
Output
•
Control cable from the DIGITEL MPCe to the Remote TSP/NEG Control
•
High-current cable from the Remote TSP/NEG Control to the TSP/NEG
•
AC input power cable
NOTE:
Details of the TSP/NEG option are available in the TSP & Remote TSP/NEG Controller Manual
(part number 900016).
