EPM/SMS MANUAL
2
118026-001 REV K
IMPORTANT
This control signal in not a safety
interlock and should not be used for
protection from high voltage generation
for safety purposes.
1.3 Standard Features
The EPM/SMS series incorporates several standard
features designed to optimize user operation.
Slow Start:
Provides a gradual increase in high voltage
output until the maximum set point is reached. Various
slow start times can be accommodated. Consult the
Spellman’s Sales Department for information on slow
start options. (The slow start time will be a function of set
point, input voltage and load conditions).
Overvoltage Protection:
SMS series only. An
overvoltage protection circuit monitors the output for
excessive voltage generation. Overvoltage conditions can
be caused by an excessive input program signal or an
internal defect in the control circuits. If an overvoltage
condition is detected, the power supply is latched off until
input power is reset.
1.3.1 Remote Operating Features
Remote Programming:
Allows remote adjustment of the
output voltage and current via an external voltage source.
Remote Monitor:
Allows remote monitoring of the
output voltage and current.
High Voltage Enable/Disable:
Allows remote ON/OFF
control of the high voltage.
+10VDC Reference:
A +10VDC reference is provided
for remote programming via a potentiometer or resistive
divider.
1.4 Options
The options available are listed in Table 1.1. See section
5 for more information on the options along with
operating and set-up instructions. With few exceptions,
these options can be retrofitted to your power supply at
the factory in a short time. For price and retrofit
arrangements, contact the Spellman Sales Department.
CODE DISCRIPTION
•
FG
Floating Ground
•
24
24Vdc Input
•
NSS
No Slow Start
•
LL(X)
Extra Length Output Cable
• Output Connector
Table 1.1 Options
1.5 Interpreting the Model
Number:
The model number of the power supply describes its
capabilities. After the series name is:
(1)
The maximum voltage (in KV).
(2)
The polarity of the output – positive (P), negative
(N).
(3)
The maximum output (in watts).
(4)
The option code for all options that are included.
(5)
Custom “X” number representing details listed in
a separate specification control drawing.
EPM/SMS 30 P 60 / FG / X(#)
Series
Name
Voltage
Maximum
Polarity
Option
"X" Number
Custom
Power
Maximum
