Description Of Table 1 Interlock; I/O Terminals; Current Control - Ransburg MICROPAK A11789 Service Manual

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MicroPak Controller - Installation

Figure 5:

Stripping of I/O Cable(s)

Figure 5:

Stripping of I/O Cable(s)

DESCRIPTION OF TABLE

1 INTERLOCK AND I/O

TERMINALS

Input T

Input Terminals

Input T

erminals

Input T

erminals

kV Setpoint (0-10VDC)

0 to 10 VDC remote analog signal input that controls

applicator output from 0 to 100 kV DC when high

voltage is enabled. This input is active when the

MicroPak local/remote switch is in the remote

position. Otherwise control is from the kV adjust

knob on the front of the MicroPak. In either mode,

the kV setpoint can be viewed by pushing and

holding the View/Change Setpoint switch (see

Figure 8) on the front of the MicroPak.

Voltage Control Over-Current

Setpoint (0-10VDC)

0 to 10VDC remote analog signal input that sets the

over-current point when high voltage is enabled. If

the current goes above this setpoint an over-

current fault will occur. This input is active when

the MicroPak local/remote switch is in the remote

position and dipswitch SW3-1 on the MicroPak

process board (see Figure 6A) is set to the ON

position. The range of the over-current setpoint in

this mode is 0 to 10VDC. The microamps are

limited to 240 for voltage above 10VDC.

For example: 3.30VDC = 85 microamps

If the local/remote switch is in the remote position

and dipswitch SW3-1 is OFF, then potentiometer

R21 on the top of the MicroPak process board (see

1 1 1 1 1 1 1 1 1 1

Figure 6A) will control the over-current setpoint.

This mode is convenient if it is desired to supply an

analog input signal for the kV setpoint but not for the

over-current setpoint.

Finally, if the local/remote switch is in the local

position, the over-current setpoint is controlled by

the μA adjust knob on the front of the MicroPak.

If any of the modes, the over-current setpoint can

be viewed by pushing and holding the View/Change

Setpoint switch (see Figure 8) on the front of the

MicroPak.

CURRENT CONTROL

Over-Current Setpoint (90-10VDC)

0 to 10VDC remote analog signal input that sets the

desired current. The current control unit will limit

the maximum current to this setpoint. If the current

goes over this setpoint, then a fault will occur.

If the voltage setpoint is set low, then the unit will

only allow enough current to achieve the kV setpoint.

It may be simpler to think of the kV setpoint as the

controlling variable when the kV setpoint is achieved

before the current setpoint.

The range of current is 0 to 240 microamps with 0

to 10VDC analog input.

For example: 10VDC = 240 microamps

3.30VDC = 85 microamps

High Voltage Reset (24VDC)

24VDC remote input signal that allows remote

reset of fault conditions. When a fault occurs, a

momentary supply of 24VDC to this terminal will

reset the fault. Faults can also be reset by moving

the kV ON/OFF toggle switch on the front of the

MicroPak to the OFF position and back to the ON

position. This input can also be used to remove the

MicroPak from ready mode.

High Voltage On (24VDC)

Remote input signal that enables high voltage.

When 24VDC is supplied to this terminal, high

voltage will be enabled. This input mode is active

in either local or remote mode when dipswitch

CP-06-01

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Description Of Table 1 Interlock; I/O Terminals; Current Control - Ransburg MICROPAK A11789 Service Manual

CURRENT CONTROL

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