Use As Directed - Beckhoff AX2040 Assembly, Installation, Setup

Technical Description
2.2

Use as directed

The servo amplifiers are components which are built into electrical equipment or machines, and can
only be used as integral components of such equipment. The manufacturer of the machine must
generate a hazard analysis for the machine, and take appropriate measures to ensure that unfore-
seen movements cannot cause injury or damage to any person or property.
The AX2040/2070 family of servo amplifiers can be connected directly to symmetrically eart-
hed(grounded) three-phase industrial mains supply networks [TN-system, TT-system with eart-
hed(grounded) neutral point, not more than 5000rms symmetrical amperes, 480VAC maximum]
when protected by fuses type Fusetron FRS-R-50 for AX2040 or FRS-R-80 class RK5 for AX2070,
manufactured by Bussman, or equivalent, 480VAC min.
The servo amplifiers must not be operated directly on power supply networks >230V without an
earth (ground) or with an asymmetrical earth (ground).
Connection to other mains supply networks ð p. 16.
The use of external mains chokes and mains filters is required.
Periodic overvoltages between outer conductor (L1, L2, L3) and housing of the servo amplifier may
not exceed 1000V (peak value).
Transient overvoltages (< 50µs) between the outer conductors may not exceed 1000V.
Transient overvoltages (< 50µs) between outer conductors and housing may not exceed 2000V.
The regen resistors have to be protected by fuses type Limitron KLM, rated for 500VAC/DC
The AX2040/2070 family of servo amplifiers is only intended to drive specific brushless synchro-
nous servomotors with closed-loop control of torque, speed and/or position. The rated voltage of the
motors must be at least as high as the DC bus link voltage of the servo amplifier. The motor must
have integral thermal protection.
The servo amplifiers may only be operated in a closed switchgear cabinet, taking into account the
ambient conditions defined on page 19 and the dimensions shown on page 33. Ventilation or coo-
ling may be necessary to prevent enclosure ambient from exceeding 45°C (113°F).
Use copper wire only. Wire size may be determined from EN 60204 (or table 310-16 of the NEC
60°C or 75°C column for AWG size).
We only guarantee the conformance of the servo amplifiers with the standards for industrial areas
(page 11), if the components are delivered by Beckhoff.
Restart lock -AS-
The restart lock -AS- is exclusively intended to provide safety for personnel, by preventing the res-
tart of a system. To achieve this personnel safety, the wiring of the safety circuits must meet the
safety requirements of EN60204, EN292 and EN 954-1..
The -AS- restart lock must only be activated,
—
—
The -AS- restart lock may only be controlled by a CNC if the control of the internal safety relay is
arranged for redundant monitoring.
The -AS- restart lock must not be used if the drive is to be made inactive for the following reasons :
1.
2.
10
when the motor is no longer rotating (setpoint = 0V, speed = 0rpm, enable = 0V).
Drives with a suspended load must have an additional safe mechanical blocking
(e.g. by a motor-holding brake).
when the monitoring contacts (KSO1/2 and BTB/RTO) for all servo amplifiers are wired into
the control signal loop (to recognize a cable break).
- cleaning, maintenance and repair operations
- long inoperative periods
In such cases, the entire system should be disconnected from the supply by the personnel,
and secured (main switch).
- emergency-stop situations
In an emergency-stop situation, the main contactor is switched off (by the emergency-stop
button or the BTB-contact in the safety circuit).
02/06
AX2040/2070 Installation Manual
Beckhoff