Meggitt VM600 Hardware Manual

9 - 40 VM600 MPS hardware manual (standard version) MAMPS-HW/E
Edition 17 - February 2018
Grounding options
CONFIGURATION OF MPC4 / IOC4T CARDS
9.9.2 VM600 slimline rack (ABE056)
When an IOC4T card is installed in a VM600 slimline rack (ABE056), the micro-switches on
the backplane of the rack must be configured to match the slot number configured for the card
(see 2.1.4 Slot number coding for cards in the rear of an ABE056 rack). This allows the
IOC4T to be used in an ABE056 rack without reconfiguring its slot number.
9.10Grounding options
Jumper J1015 on the IOC4T card (see Figure 9-28) allows the commoned (that is, connected
together) sensor shields to be connected to either:
• The case ground (chassis)
In this case, contacts 2-1 of J1015 must be shorted.
• The VME ground (0 V
A
)
In this case, contacts 1-3 of J1015 must be shorted.
The location of the J1015 jumper on the IOC4T card can be found using Figure 9-29.
NOTE: For the standard version of an ABE04x rack with the standard version of an MPC4
card installed, the case ground (rack chassis) is connected to the VME ground
(0 V
A
) by jumper J701 on the MPC4.
Figure 9-28: Jumper to configure grounding option
Measurement
channel 1
Measurement
channel 2
Measurement
channel 3
Measurement
channel 4
Speed
channel 1
Speed
channel 2
Sensor
shield
VME ground
(0 V
A
)
Case ground
(chassis)
Default (factory) setting
SHIELD inputs
(commoned together
on IOC4T card)
High-voltage
capacitor
*
Notes
*The standard version of the IOC4T card has a short-circuit between J1015 contact 2 and case ground.
*The separate circuits version of the IOC4T card has a high-voltage capacitor between J1015 contact 2 and case ground.
The J1016 jumper on the IOC4T card is reserved for system test and should not be changed by the user.
J1015
J1016

Meggitt VM600 Specifications

General

Brand	Meggitt
Model	VM600
Category	Measuring Instruments
Language	English