Parker Hannifin vm24 User Manual

VM24 Series

User Guide

External Input/Output Interface Module

for 6000 Series Controllers

Compumotor Division
Parker Hannifin Corporation

Compumotor

p/n 88-015965-01A

July 1997

VM24 I/O Module

Information in this document is subject to change without notice and does not
represent a commitment on the part of Parker Hannifin Corporation. No part of this
document may be reproduced or transmitted in any form or by any means, electronic
or mechanical, including photocopying, recording, or information storage and
retrieval systems, for any purpose other than the purchaser's personal use, without
permission of Parker Hannifin Corporation.

VM24 is a trademark of Parker Hannifin Corporation.
Microsoft is a registered trademark and Windows is a trademark of Microsoft
Corporation.

 Copyright 1997 by Parker Hannifin Corporation.

All rights reserved.
Printed in the United States of America.

WARNING

The VM24 I/O Module sends and receives signals for controlling your system's
electrical and mechanical components. Therefore, you should test your system for
safety under all potential conditions. Failure to do so can result in damage to
equipment and/or serious injury to personnel.

Technical Assistance: Contact your local ATC, or ...

North America

Parker Hannifin Corporation

Compumotor Division
5500 Business Park Drive
Rohnert Park, CA 94928
Telephone: [phone] or [phone]
Fax: [phone]
BBS: [phone]
FaxBack: [phone] or [phone]
Internet: www.compumotor.com
E-mail: [e-mail]

Product Feedback Welcome

Motion & Control

E-mail: [e-mail]

Europe

Parker Hannifin plc

Electromechanical Division - Digiplan
21 Balena Close
Poole, Dorset. BH17 7DX UK
Telephone: [phone]
Fax: [phone]

Parker Hannifin GmbH & Co. KG

Electromechanical Division - Hauser
Rober-Bosch-Str. 22
D-77656 Offenburg, Germany
Telephone: [phone]
Fax: [phone]

CONTENTS

Chapter 1. Installation

What You Should Have (ship kit)................................................... 2

Overview — VM24 ..................................................................... 3

Specification Summary ............................................................... 4

VM24 Assembly Configuration...................................................... 7

I/O Pin Out Table....................................................................... 8

Electrical Connections................................................................ 9

Jumper Configuration ............................................................... 11

Ribbon Cable Connection .......................................................... 12

Input Connection ..................................................................... 15

Output Connection................................................................... 16

VM24 Module Configuration Summary.......................................... 17

Chapter 2. Troubleshooting

Troubleshooting Basics ............................................................ 20

SIM Board Installation and Removal ............................................ 23

CHAPTER ONE

Installation

1

What You Should Have (ship kit)

Part Name Part Number

One of the following line items:

VM24S single axis I/O module...................................... VM24S

VM24IN multi axis I/O module...................................... VM24-IN

VM24OUT multi axis I/O module.................................. VM24-OUT

VM8/16 multi-axis I/O module....................................... VM8/16

VM16/8 multi-axis I/O module....................................... VM16/8

Ship Kit:

This user guide (VM24 User Guide)............................. 88-015965-01A

One of the following cables:

Standard 50-pin ribbon cable....................... 71-013016-01

(For VM-24S, VM24-IN,
and VM24-OUT)

Split 50-pin ribbon cable............................... 71-013016-01

(For VM8/16 and VM16/8)

If an item is missing, call the factory (see phone numbers on inside front cover.)

Options/Accessories Part Number

Module base with Standard cable and User Guide........................ VM24-Base1

Module base with Split cable and User Guide................................ VM24-Base2

Output SIM card (8 outputs)............................................................ SIM8-OUT

Input SIM card (8 inputs)................................................................. SIM8-IN

Input/Output SIM card (4 inputs, 4 outputs)..................................... SIM8-4X4

2 VM24 I/O Module

Overview — VM24

The VM24 external I/O modules act as an interface for the general-purpose
programmable inputs and outputs of all the 6000 Series servo and
microstepping products. The VM24 module consists of a base board and one
to three SIM (single in-line module) style boards that can be inserted to
provide the user with a scaleable solution for their input and output needs.

• The outputs are enhanced by an undervoltage lockout circuit and a
thermal shutdown protection circuit. These outputs operate over 5VDC
to 24VDC, will sink 50 mA to 0.4VDC or 300mA to 2.5VDC, and
will source 50 mA to a voltage level of Vo – 2VDC (user-supplied

voltage level Vo minus 2 volts, e.g. for Vo=24V, output is 22V) or
300 mA to a voltage level of Vo – 2.5VDC (user-supplied voltage
level Vo minus 2.5 volts, e.g. for Vo=24V, output is 21.5V).

• The inputs are enhanced by decompression, hysteresis, high-frequency
filtering, and overvoltage clamping. These inputs, capable of operating
in sinking or sourcing mode, have a range from 5VDC to 24VDC. The
switching level for inputs is based on the user-supplied voltage Vi, such

that OFF ≤1/3 (Vi) and ON ≥ 2/3 (Vi), with hysteresis of 1/3(Vi).
(For example, with Vi of 24VDC, OFF ≤ 8VDC and ON ≥ 16VDC,
with 8VDC of hysteresis.) Jumpers are used to configure the inputs as

sinking or sourcing. Each of the three SIM sockets has its own
corresponding jumper, allowing each input SIM to be independently
configured.

The VM24 module accepts a 50-pin ribbon cable from the 6000 Series
product and provides screw terminal connections for easier interface with the
user's application. The 24 I/O signals to/from the 50-pin DIN connector and
the 50-pin screw terminal are interrupted by three SIM sockets (each SIM
interrupts an 8-bit group of signals).

Optical isolation is inherited from the 6000 product, except for OEM
products. (I/O ground is isolated from microprocessor ground, but inputs and
outputs are not isolated from each other.)

Installing the VM24 3

Specification Summary

Parameter Specification

Power Requirements

Vo ........................ User-supplied voltage that drives output circuitry.

Vo does not affect input circuitry, so it is not

necessary for the VM24-IN.

Vo Range................ 5-24VDC

Vo Current .............. 144mA, plus the sum of the load currents outputs

that are in sourcing mode.

Vi.......................... User-supplied voltage that drives input circuitry &

determines switching levels for inputs. Does not
affect output circuitry, so it is not necessary for
the VM24-OUT.

Vi Range ................ 5-24VDC

Vi Current............... 1.5mA per volt of V

(e.g., 15mA for Vi=10V)

+5V....................... Supplied by the 6000 Series Controller/Indexer

through the 50-pin ribbon cable to connector J4.
The VM24 draws 0.25mA per active output and

0.5mA per active input. Also provides the
+5V output power available through the
VM24 screw terminal block J5.

Inputs

Switching levels....... LOW ≤ 1/3 (Vi )

HIGH ≥ 2/3 (Vi)

Voltage Range.......... 0-24V. Voltage of input signals should not

exceed voltage level of Vi. (Input circuitry of
VM24 has diodes to protect against voltages that

exceed Vi, but performance may degrade.)

Sinking Current:....... Connect jumper for desired socket to position 3

(default)

Sourcing Current: ..... Connect jumper for desired socket to position 1

i

4 VM24 I/O Module

Impedance................ 6 kΩ, minimum. Requires input current

(sourcing or sinking) of 0.111mA per volt of
user-supplied voltage Vi. (e.g., 1.11mA for

Vi=10V).

Status: .................... Check with the TIN or INFNC command.

Active Level: ........... Set by 6000 Series Controller/Indexer. Default is

active low, but can be changed to active high with
the INLVL command.

Input frequency......... 50 kHz (the maximum frequency is limited

practically to 500 Hz by the 2 ms update rate of
the 6000 Series.

Outputs

Voltage................... Sourcing Current

Output voltage level is 2 volts less than the user­supplied voltage Vo when sourcing up to 50mA.

(Vo – 2 VDC for 50 mA
e.g. for Vo=24V, output is at 22V)

Output voltage level is 2.5 volts less than the
user-supplied voltage Vo when sourcing up to

50mA.
(Vo – 2.5VDC for 300 mA

e.g. for Vo=24V, output is at 21.5V)

Sinking Current

Output voltage level is less than or equal to

0.4VDC when sinking up to 50mA.
(≤ 0.4 VDC for 50 mA)

Output voltage level is less than or equal to

2.5VDC when sinking up to 300mA.
(≤ 2.5 VDC for 300 mA)

Current ................... 300mA maximum per output, continuous duty at

50°C ambient temperature

Status:.................... Check with the TOUT or OUTFNC command.

Active Level: ........... Default is active low, but can be changed to active

high with the OUTLVL command.

Rise Time ............... Load dependent; typically 40ns per 1000 pF

Fall Time ................ Load dependent; typically 40ns per 1000 pF

Installing the VM24 5

Undervoltage

Protection......... The under-voltage lockout circuit is meant to

prevent the output driver from sinking or sourcing

unless the user-supplied voltage Vo is between

5VDC and 24VDC.

Thermal Shutdown.... The thermal shutdown protection is intended to

protect the device from marginal environmental

factors. It must not be considered short circuit

protection. The thermal resistance between the

FET junction and the thermal protection circuit

on the SIM cards is great enough that the rapid

rise in junction temperature caused by a short

circuit will not transfer fast enough to protect the

device from damage.

+5V Output ............. Supplied by the 6000 Series Controller/Indexer

through the 50-pin ribbon cable to connector J4.

Accessed on the VM24 through the screw

terminals (J5). Refer to the User/Installation

Guide for the 6000 Series Controller/Indexer

being used for the load limit of its +5V Output.

Subtract any loads being drawn from the +5V

Output at the 6000 Series unit level. The VM24

draws 0.25mA per active output and 0.5mA per

active input from the +5V supply. Use this

information to calculate the load limit available

for the +5V Output on the screw terminal of the

VM24.

NOTE: Outputs are not short-circuit protected.

Environmental

Operating Temp........ 32 to 122°F (0 to 50°C)

Storage Temp........... -22 to 185°F (-30 to 85°C)

Humidity................. 0 to 95% non condensing

Dimensions

SIM board ............... 1.1 inches x 4.25 inches (28 mm x 108 mm)

VM24 module.......... 2.84 inches x 5.215 inches (72 mm x 132 mm)

6 VM24 I/O Module

VM24 Assembly Configurations

The VM24 is available in five different configurations, as shown in the
following table. Each configuration uses the same base unit. The
combination of SIM boards installed in the base unit determine the I/O
configuration.

Description P/N I/O Boards Cable Type

Single Axis
(16 IN / 8 OUT)

24 IN VM24IN 3 SIM8-IN Regular

24 OUT VM24OUT 3 SIM8-OUT Regular

16 IN/8 OUT VM16/8 1 SIM8-OUT

8 IN / 16 OUT VN8/16 1 SIM8-IN

VM24S 2 SIM8-4X4

1 SIM8-IN

2 SIM8-IN

2 SIM8-OUT

Regular

Split

Split

The VM24 uses Single Inline Module (SIM) style boards and sockets. The
board types are color-coded for easy identification.

Board Type Color

SIM8-IN Red
SIM8-OUT Blue
SIM8-4X4 Green

P/N: SIM8-OUT

PARKER COMPUMOTOR

Fig. 1: Typical I/O Board

Installing the VM24 7

I/O Pin Out Table

Screw
Terminal
Number

1 IN # 1 OUT #1 IN #1 OUT #1 IN #1
2 IN # 2 OUT #2 IN #2 OUT #2 IN #2
3 IN # 3 OUT #3 IN #3 OUT #3 IN #3
4 IN # 4 OUT #4 IN #4 OUT #4 IN #4
5 IN #5 OUT #5 OUT #1 OUT #5 IN #5
6 IN #6 OUT #6 OUT #2 OUT #6 IN #6
7 IN #7 OUT #7 OUT #3 OUT #7 IN #7
8 IN #8 OUT #8 OUT #4 OUT #8 IN #8
9 IN # 9 OUT #9 IN #5 IN #1 OUT #1

1 0 IN # 10 OUT #10 IN #6 IN #2 OUT #2
1 1 IN # 11 OUT #11 IN #7 IN #3 OUT #3
1 2 IN # 12 OUT #12 IN #8 IN #4 OUT #4

VM24IN VM24OUT VM24S VM16/8 VM8/16

1 3 IN # 13 OUT #13 OUT #5 IN # 5 OUT #5
1 4 IN # 14 OUT #14 OUT #6 IN # 6 OUT #6
1 5 IN # 15 OUT #15 OUT #7 IN # 7 OUT #7
1 6 IN # 16 OUT #16 OUT #8 IN # 8 OUT #8
1 7 IN # 17 OUT #17 IN #9 IN #9 OUT #9
18 I N #18 OUT #18 IN #10 IN #10 OUT #10
19 I N #19 OUT #19 IN #11 IN #11 OUT #11
20 I N #20 OUT #20 IN #12 IN #12 OUT #12
21 I N #21 OUT #21 IN #13 IN #13 OUT #13
22 I N #22 OUT #22 IN #14 IN #14 OUT #14
23 I N #23 OUT #23 IN #15 IN #15 OUT #15
24 I N #24 OUT #24 IN #16 IN #16 OUT #16

8 VM24 I/O Module

Electrical Connections

J6

J4

JU1

1–8

1

JU2

1

9–16

JU3

1

17–24

J5

Fig. 2: Top View of the VM24 (shown without boards inserted)

J1 ..... SIM socket for I/O board 1, screw terminals 1-8.

J2 ..... SIM socket for I/O board 2, screw terminals 9-16.

J3 ..... SIM socket for I/O board 3, screw terminals 17-24.

J4 ..... Input connector for cable from 6000 Series Controller/Indexer

J5 ..... I/O Screw Terminals

J6 ..... Power & Ground Screw Terminals

J1

J3

Each configuration of the VM24 requires a specific mounting order for the
I/O boards, as shown in the following table:

Description J1 J2 J3

VM24S
(Single Axis)

VM24IN SIM8-IN SIM8-IN SIM8-IN
VM24OUT SIM8-OUT SIM8-OUT SIM8-OUT
VM16/8 SIM8-OUT SIM8-IN SIM8-IN
VM8/16 SIM8-IN SIM8-OUT SIM8-OUT

SIM8-4x4 SIM8-4x4 SIM8-IN

Installing the VM24 9

J1

J2

J3

J4

JU1 JU2 JU3

Fig. 3: Left-Side View of the VM24

(shown with boards inserted)

JU1 Jumper for SIM slot J1.
JU2 Jumper for SIM slot J2
JU3 Jumper for SIM slot J3

See page 11 for the description of jumper configurations.

J5

J5

Fig. 4: Right-Side View of the VM24

(shown with boards inserted)

10 VM24 I/O Module

J3 J2 J1

RIGHT SIDE

J6

GND

Vo V

i

Jumper Configuration

The jumpers are used to configure the inputs for the I/O boards as sinking or
sourcing. Each socket has its own corresponding jumper, allowing each
board with inputs to be independently configured for sinking or sourcing.

Sinking Inputs: Position 3 (shown)

Jumps pull-up to V

Sourcing Inputs: Position 1

Jumps pull-up to Ground (pin 1)

The default jumper position when shipped from the factory is position 3, as
shown below. The jumper positions only affect inputs on the VM24.
Jumper position does not affect the outputs. Jumper position is irrelevant
for SIM8-OUT boards.

(pin 3)

i

JU1

JU2

JU3

Pin 3 = V

Pin 2 = Pull Up (connection to SIM socket)

i

1

Pin 1 = Ground

1

1

Figure 5: VM24 Jumpers

Installing the VM24 11

Ribbon Cable Connection

Caution

Remove power to the VM24 before

attaching or removing the cable.

The VM24 is shipped with a 2-foot ribbon cable, with mating connectors.
Connectors are keyed to ensure that they are inserted into mating connectors
correctly. Cable installation for the VM24S, VM24-IN, and VM24-OUT
consists of simply inserting the connector from one end of the cable into the
Programmable I/O connector of the 6000 Series Controller/Indexer, then
inserting the connector at the other end of the cable into connector J4 of the
VM24.

Multi-axis 6000 Series Controller/Indexers have separate input and output
connectors. Therefore, the two multi-axis configurations of the VM24
which offer both inputs and outputs, listed below, require a split cable to
access both of these connectors.

• VM16/8

• VM8/16

The connector that is attached to the portion of the ribbon cable with the red
stripe corresponds to the I/O boards in sockets J2 and J3 — either 16 IN or
16 OUT. This connector should be inserted into its corresponding Input or
Output connector on your 6000 Series Controller/Indexer. See Figures 6 and

7. The connector that is attached to the smaller width of ribbon cable
corresponds to the I/O board in J1 — either the SIM8-IN or SIM8-OUT.
This connector should be inserted into its corresponding Input or Output
connector on your 6000 Series Controller/Indexer.

12 VM24 I/O Module

Connect to

Input Connector

on 6000 Controller

Red Stripe

Connect to

Output Connector

on 6000 Controller

Connect to

J4 Connector

on VM16/8

Fig. 6: Split Cable for the VM16/8

Installing the VM24 13

Connect to
Output Connector
on 6000 Controller

Red Stripe

Connect to

Input Connector

on 6000 Controller

Fig. 7: Split Cable for the VM8/16

14 VM24 I/O Module

Connect to

J4 Connector

on VM8/16

Input Connections

Caution

Remove power to the VM24 before

making any connections.

Sinking

External Supply

(up to 24VDC)

+

–

Electronic

Device

The output should
be able to sink at
least 3mA of current.

Out 5-24 Volts

Output

Ground

Sourcing

Electronic

Device

Out 5-24 Volts

V

1

R

1

Output

Ground

(J6)

(J6)

Ground
Connection

(J5)

Input
Connection

(J5)

Ground
Connection

External Supply

(up to 24VDC)

+

–

Ground
Connection

(J5)

Input
Connection

Ground
Connection

VM24

V

i

JUMPER

3

20.0 KΩ

2

1

Iso
GND

18.2 KΩ
ISO
Ground

6.81 KΩ

12.1 KΩ

V

i

Iso
GND

Iso
GND

­+

1500 pF

10.0 KΩ

30.1 KΩ

Connection

(J4)

Iso

GND

Connection

(J4)

VM24

JUMPER

3

20.0 KΩ

2

1

6.81 KΩ

12.1 KΩ

V

i

18.2 KΩ
Iso
GND

1500 pF

Iso
GND

­+

10.0 KΩ

30.1 KΩ

Iso
GND

Iso
GND

GND

Iso

Connection

(J4)

Connection

(J4)

(J6)

(J6)

(J5)

V

i

+5V

IN-P

Ground

Input

Ground

+5V

IN-P

Input

6000 Series

Controller

6000 Series

Controller

Installing the VM24 15

Output Connections

Caution

Remove power to the VM24 before

making any connections.

Connect the output pull-up pin OUT-P of the 6000 Series unit to Vo on the
VM24 module to ensure the proper sequencing of output signals upon

application of power to the VM24. The Output, Ground, and +5V
connections between the 6000 Controller and the VM24 are made with the
50-pin ribbon cable to the J4 connector.

Use an external diode when driving inductive loads. Connect the diode in
parallel to the inductive load, attaching the anode to the VM24 output and
the cathode to the supply voltage of the inductive load.

Sinking

External Supply

(up to 24VDC)

+

–

6000 Series

Controller

OUT-P

+5V

Output
Connection

Ground
Connection

VM24

+5V
(J4)

(J4)

(J4)

Iso GND

GND

Iso GND

Iso

V

o

(J6)

Ground
Connection

Output
Connection

Ground
Connection

(J6)

(J5)

(J5)

Electronic

Device

Input

Sourcing

External Supply

(up to 24VDC)

+

–

6000 Series

Controller

OUT-P

+5V

Output
Connection

Ground
Connection

Note: Make sure the jumper between OUT-P and +5V on the 6000 Series
unit is removed to avoid damage to the VM24

16 VM24 I/O Module

VM24

+5V

(J4)

(J4)

(J4)

Iso GND

Iso GND

GND

Iso

V

o

(J6)

Ground
Connection

Output
Connection

Ground
Connection

Electronic

Device

(J6)

(J5)

Input

(J5)

Ground

VM24 Module Configuration Summary

The VM24 is shipped with the SIM8 boards already installed.

1. Mount the VM24 module (standard DIN rail).

2. Set the jumpers to position 3 (default) for sinking inputs or to position
1 for sourcing inputs. (See page 11).

3. Connect the 50-pin ribbon cable to the I/O connector(s) of the 6000
Series Controller/Indexer (see page 12). Connect the other end of the
cable to the J4 connector of the VM24 module. Make sure that power is
off to the 6000 Series unit before making these connections because the
50-pin ribbon cable provides +5V to the VM24 from the I/O connector.

4. Connect the output pull-up pin OUT-P of the 6000 Series unit to V
(J6) of the VM24 module. This ensures the proper sequencing of

outputs upon application of power. Make sure the jumper

between OUT-P and +5V on the 6000 Series unit is
removed to avoid damage to the VM24. (This step is not

necessary for the VM24-IN.)

5. Connect the desired power supply to Vo at connector J6. Do not apply
power until all connections are made. (This step is not necessary for the

VM24-IN.)

6. Connect the desired power supply to Vi at connector J6. Do not apply
power until all connections are made. (This step is not necessary for the

VM24-OUT.)

7. Make connections to the desired input and/or output signals using the
screw terminals. (J5). See Pin-Out Table on page 8.

8. Apply power to the VM24 module. The power-up sequence is not
important as long as OUT-P is connected to Vo.

o

Installing the VM24 17

CHAPTER TWO

Troubleshooting

2

Basic Troubleshooting

When your system does not function properly (or as you expect it to
operate), the first thing that you must do is identify and isolate the problem.
When you have accomplished this, you can effectively begin to resolve the
problem.

• Is the 50-pin ribbon cable connected properly to the 6000 Series

Controller / Indexer? If it's a split cable, is the input connector of the
cable connected to the input connector of the 6000 Series unit? Is the
output connector of the cable connected to the output connector of the
6000 Series unit? (See pages 12-14.)

• Is the 50-pin ribbon cable connected properly to connector J4 of the

VM24?

• Is the OUT-P pin on the 6000 Series Controller/Indexer connected to

Vo? (Not applicable for the VM24-IN.)

• Is the IN-P pinon the 6000 Series Controller/Indexer connected to +5V

(or other power supply)? (Not applicable for the VM24-OUT.)

• Are the Vo and Vi power supplies connected to the VM24? See pages

4 and 10.

• Are the voltage values and polarities correct for Vo and Vi? (The

output circuitry of the SIM8-OUT and SIM8-4X4 cards are susceptible
to damage from improperly applied power. The VM24 is not short

circuit protected.)

• Are the jumpers set properly to select sinking or sourcing mode for the

inputs? (Not applicable for the VM24-OUT.) See page 11.

• Are the input and output devices connected to the proper inputs or

outputs on the screw terminal (J5). Verify with the I/O pin out table
on page 8.

• Is the +5V Output load limit being exceeded? (Any connections to the

+5V Output on the screw terminal [J5]? Any connection to the +5V
Output on the 6000 Series unit? See the Specification Summary on
page 6 for how to calculate the load limit.)

• Are the SIM8 boards installed in the proper slots? (See page 9.)

• Are the SIM8 boards seated properly in their designated slots? (See pg.

23.)

20 VM24 I/O Module

6000 Series Controller/Indexer

First, verify that 6000 Series Controller/Indexer I/O is functioning properly
to aid in isolating the problem. Disconnect the 50-pin ribbon cable, or just
disconnect the cable from connector J4 of the VM24, before performing this
test.

Outputs:

Use the Transfer Output Status (TOUT) command to check the status
of the outputs. Use the Output State (OUT) command to change the
outputs. Use a voltage meter to check individual outputs at the I/O
connector of the 6000 Series unit to verify that the voltage level
toggles between Ground and Vo.

Inputs:

Use the Transfer Input Status (TIN) command to check the status of
the inputs. Use the Input Active Level (INLVL) command to define
the active state of all programmable inputs. Alternate between
applying supply voltage Vi to an input and grounding it, using the

TIN command to verify that the input toggles as you do so.

If the inputs or outputs do not appear to be functioning properly at
the 6000 Controller level, refer to the Common Problems &
Solutions section of the Troubleshooting chapter in the User Guide
or Installation Guide for the 6000 Series Controller/Indexer being
used in the application. Specific I/O problems are addressed in the
table.

Note: For additional information on 6000 Series commands,

refer to the 6000 Series Software Reference.

Troubleshooting 21

50-pin Ribbon Cable

Next, verify that the ribbon cable is relaying the signals properly. Connect
the 50-pin ribbon cable to the 6000 Series unit, but do not connect the other
end of the cable to the VM24. Repeat the above test, applying and checking
voltages at the connector that would plug into J4. (The red stripe on the
ribbon cable corresponds to pin 50 on the 6000 Series Controller/Indexer I/0
connectors.)

As an alternative, disconnect the 50-pin ribbon cable from the 6000 Series
unit and the VM24. Use a volt meter and a voltage source to verify the
continuity of the 50-pin ribbon cable.

VM24

Caution

Remove power to the VM24 before

making any connections. Remember to

turn off power to the 6000 Series unit

before connecting the 50-pin ribbon

cable to the VM24. (The ribbon cable

provides +5V to the VM24 from the

6000 Series unit I/O connector.)

Once it has been verified that the 6000 Series unit and 50-pin ribbon cable
are operating properly, check the VM24 to isolate the problem. Reconnect
the 50-pin ribbon cable to the 6000 Series, and the other end to connector J4.
Turn on power.

Power

Use a volt meter to check the voltage level and polarity of V
a volt meter to check the voltage level and polarity of V

Use a volt meter to verify the voltage level of the +5V output on
the screw terminal block (J5). (The +5V is supplied by the 6000
Series unit, and is used to power the input and output circuitry on
the SIM8 cards.)

22 VM24 I/O Module

i.

o.

Use

Outputs

Inputs

Use the Transfer Output Status (TOUT) command to check the status
of the outputs. Use the Output State (OUT) command to change the
outputs. Use a voltage meter to check individual outputs at the
screw terminals (J4) of the VM24 to verify that the voltage level
toggles between Ground and (Vo-2). [The output level should be

approximately 2 volts less than the user supplied voltage Vo.]
If one output does not appear to toggle, check all other outputs. If

none of the outputs will toggle, check Vo again. If some outputs
will toggle, and some won't (after verifying that they toggle

properly at the 6000 Series unit I/O connector), the corresponding
SIM8-OUT or SIM8-4X4 board isn't seated properly or has been
damaged. (See page 9.)

Use the Transfer Input Status (TIN) command to check the status of
the inputs. Use the Input Active Level (INLVL) command to define
the active state of all programmable inputs. Alternate between
applying supply voltage Vi to an input and grounding it, using the

TIN command to verify that the input toggles.

If one input does not appear to toggle, check all other inputs. If
none of the inputs will toggle, check Vi again. If some inputs will

toggle, and some won't (after verifying that they toggle properly at
the 6000 Series unit I/O connector), the corresponding SIM8-IN or
SIM8-4X4 board isn't seated properly or has been damaged. (See
page 9.)

SIM Board Insertion and Removal

In the event that an I/O board needs to be replaced, the I/O boards must be
inserted and removed from the VM24 in a particular order due to the limited
clearance between the sockets. Remove all power to the VM24
before removing or inserting an I/O board, including the +5V from
the connection to the 6000 Series Controller/Indexer at connector J4. When
removing I/O boards, remove the board from the J1 slot first, J2 second, and
then J3. When inserting I/O boards, insert the board into the J3 slot first, J2
second, and then J1.

Troubleshooting 23

P/N: SIM8-OUT

Notch

PARKER COMPUMOTOR

Fig. 9: I/O Board and Socket

To Insert I/O Boards

1. Insert the I/O board into the socket, as shown in Fig. 9 above, and in
Fig. 10 below. Start the I/O board at an angle of approximately 30°.

2. Firmly press the board into the socket and rotate it forward until it snaps
underneath the metal clips.

3. Make sure both clips have snapped into place to secure the I/O board.

1

30

Fig. 10: I/O Board Insertion

Remove power to the VM24 before

removing or inserting boards.

24 VM24 I/O Module

2

Caution

3

To Remove I/O Boards

1. Gently depress or push the metal socket clamps (see Fig. 11 below) to
release the I/O board from the socket.

2. Tilt the I/O board toward the back of the socket and lift it out gently.

Never force the I/O board out of the socket without releasing the clamps.

Failure to release the clamps may break the socket, causing damage
which is not covered by warranty.

Depress - or - Push

Fig. 11: SIM Socket Clip - Top View

Caution

Remove power to the VM24 before

removing or inserting boards.

Troubleshooting 25

VM24 I/O Module Pin Out Table

Screw
Terminal
Number

1 IN #1 OUT #1 IN #1 OUT #1 IN #1

2 IN #2 OUT #2 IN #2 OUT #2 IN #2

3 IN #3 OUT #3 IN #3 OUT #3 IN #3

4 IN #4 OUT #4 IN #4 OUT #4 IN #4

5 IN #5 OUT #5 OUT #1 OUT #5 IN #5

6 IN #6 OUT #6 OUT #2 OUT #6 IN #6

7 IN #7 OUT #7 OUT #3 OUT #7 IN #7

8 IN #8 OUT #8 OUT #4 OUT #8 IN #8

9 IN #9 OUT #9 IN #5 IN #1 OUT #1

10 IN #10 OUT #10 IN #6 IN #2 OUT #2

11 IN #11 OUT #11 IN #7 IN #3 OUT #3

12 IN #12 OUT #12 IN #8 IN #4 OUT #4

13 IN #13 OUT #13 OUT #5 IN #5 OUT #5

VM24IN VM24OUT VM24S VM16/8 VM8/16

14 IN #14 OUT #14 OUT #6 IN #6 OUT #6

15 IN #15 OUT #15 OUT #7 IN #7 OUT #7

16 IN #16 OUT #16 OUT #8 IN #8 OUT #8

17 IN #17 OUT #17 IN #9 IN #9 OUT #9

18 IN #18 OUT #18 IN #10 IN #10 OUT #10

19 IN #19 OUT #19 IN #11 IN #11 OUT #11

20 IN #20 OUT #20 IN #12 IN #12 OUT #12

21 IN #21 OUT #21 IN #13 IN #13 OUT #13

22 IN #22 OUT #22 IN #14 IN #14 OUT #14

23 IN #23 OUT #23 IN #15 IN #15 OUT #15

24 IN #24 OUT #24 IN #16 IN #16 OUT #16