Справочник Пользователя для Delta Tau GEO BRICK LV
Geo Brick LV User Manual
PinOuts and Software Setup
27
Power On/Off Sequence
!
Caution
The main bus power should NEVER be brought into the Geo Brick
LV if the 24V logic power is NOT applied.
LV if the 24V logic power is NOT applied.
!
Caution
Make sure that no motor commands (e.g. phasing, jogging, open loop)
are being executed by the controller (PMAC) at the time of applying
main bus power.
are being executed by the controller (PMAC) at the time of applying
main bus power.
Powering up a Geo Brick LV must obey the following procedure:
1. Apply 24V logic power
2. Wait a minimum of ~ 2 seconds
3. Apply main bus power
2. Wait a minimum of ~ 2 seconds
3. Apply main bus power
!
Caution
When the main DC bus motor power is disconnected, a Kill command
should be sent to all motors (e.g. via logic PLC or HMI).
should be sent to all motors (e.g. via logic PLC or HMI).
Powering down a Geo Brick LV must obey the following procedure:
1. Disconnect main bus power
2. Wait a minimum of ~ 1 second
3. Disconnect 24V logic power
2. Wait a minimum of ~ 1 second
3. Disconnect 24V logic power
!
Caution
The loss of DC bus motor power in the Geo Brick LV is not an
amplifier fault condition.
amplifier fault condition.
The loss of DC bus motor power in the Geo Brick LV is not an amplifier fault condition. Killing all
motors upon disconnecting bus power is highly recommended.
In this scenario, if the controller is programmed to persistently enable a motor (bad practice), it will not
know that the bus has been disconnected (no amplifier fault). Therefore, as soon as the DC bus is re-
applied, it will try to enable which results in an in-rush current (hardware damage) and unexpected –
dangerous – motor move.