GE VMIVME-4132-010 32-Channel 12-bit Analog Output Board with Built-In-Test

Features:

• 32 analog output channels

— 12-bit D/A converter

— One S&H for output

— Output short circuit and transient protected

— Unipolar (0 to 10 V, 0 to +5 V) or bipolar (±2.5, ±5, ±10 V)

— Program-selectable scan rates provide improved response for complex

output functions

— 10 mA outputs

— Program-controlled online and offline operating modes

• Built-in-Test on-board

— Tests 100 percent of active components

— Effective in both online and offline modes

— On-board self-test multiplexer and A/D converter

• Semiconductor output switches do not compromise accuracy

• 0.1 Ω output impedance

• On-board ±15 V DC-to-DC conversion

• Front panel activity LED

INTRODUCTION — The VMIVME-4132 analog output board provides 32 high-quality analog output channels, 

which can be programmed with on-board jumpers to operate in a variety of voltage ranges. 

All outputs have 12-bit resolution, and can source or sink 10 mA at ±10 V.

For offline testing, the analog outputs can be disconnected from the external circuits.

FUNCTIONAL CHARACTERISTICS

VMEbus Compliance: The analog output board is a standard double height printed circuit board which is compatible with the VMEbus specification (Rev. C.1).

VMEbus A16:D16

Board Address: The physical address for the board

may be selected by on-board jumpers. VMEbus address

lines A07 through A15 are decoded for board selection.

VMEbus Access: Address modifier bits are

jumper-selected and decoded to support both

nonprivileged short I/O, supervisory short I/O, or both.

The board is factory-configured for supervisory short I/O.

Functional Characteristics 

Introduction:

Functional Characteristics

Introduction: The VMIVME-2210 provides 64 One Form C (SPDT)

contacts to the user via two 96-pin DIN connectors. These relays

are the magnetic latching type which means that, once a

contact is set it will remain set (even if power is removed from

the relay) until it is reset. All three contact points are brought out

via the connector. They are the N.O. (Normally Open), N.C.

(Normally Closed), and the Common contact points. The N.O. and

the Common can be used to create One Form A contacts while

the N.C. and common can be used as One Form B contacts. The

N.O. contacts are on Row A of the connectors and the common

contacts are on Row C of the connector as shown in Figure 1.

This arrangement permits 64-conductor cables to be used for Form A switches.

INDUCTIVE LOAD DRIVER — Bifilar (unipolar) stepper motors can be driven directly. 

The internal kickback diodes prevent damage to the output transistors by suppressing the high-voltage spikes which occur when

turning OFF an inductive load.

FAULT CONDITIONS — In the event of a shortedload, shorted winding, or stalled motor, the load current will attempt to increase.

As described above, the drive current to the output stage is diverted (limiting the load current to about1 A), causing the output stage to go linear. As the junction

temperature of the output stage increases, the thermal limit circuit will become operational, further decreasing the drivecurrent.

The load current (junction temperature) is then a function of ambient temperature, state of remaining drivers,supply voltage, and load resistance.

If the fault condition is corrected, the output driver will return to its normal saturated condition. 

Short circuit protection is provided for each output for supply voltages up to 25 V.

ANALOG OUTPUTS

Number of Output Channels:

Thirty-Two: One S&H per channel

Full-Scale Analog Output

(Jumper-Selectable):

Unipolar: 0 to +10 V, 0 to +5 V

Bipolar: ±2.5 V, ±5.0 V, ±10.0 V

Analog Output Code: The 12-bit digital-to-analog

converter (DAC) accepts digital codes in straight

binary, offset binary, or two’s complement

Output Load Current: ±10 mA, over the entire

output voltage range of ±10 V

Resolution: 12 bits

Output Impedance: <0.1 Ω, online

>10 MΩ, offline

Total Error: ±0.05 percent of full-scale range

Maximum Settling Time to 1 LSB: 3.4 ms

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