Metronix 9200-4104-2000, Инструкция по монтажу

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2 For your own safety
2.7 Protection against contact with electrical
parts
Dangerous electrical voltage!
In certain device constellations, the rapid discharge of the DC bus voltage of the servo
drive may be rendered ineffective. In these cases, the servo drives may still carry
dangerous voltage levels for a very long time after they have been switched off (residual
capacitor charge).
Make sure that the DC bus has discharged by measuring at the DC bus terminals ZK+
and ZK- or wait for the maximum discharge time. This is for BL 4100-M / BL 4100-D
30 minutes . For BL 4800-M / BL 4800-D no waiting time is required. In the event of a
device defect, connections other than those specified here may also carry a life-
threatening voltage. Under these circumstances, the discharge time must be waited for
in any case.
To prevent accidents, injuries and damage to property:
Follow the national accident prevention regulations (for Germany, this is DGUV regulation
3 (formerly BGV A3)).
Do not touch the electrical connections of the components when they are switched on.
Prior to accessing electrical parts carrying voltages above 50 V, disconnect the device
from the mains power supply or voltage source. Secure it against reconnection.
Install the respective covers and guards against accidental contact prior to switching the
device/system on. Rack-mounted devices must be protected against accidental contact
by way of an enclosure, e.g. a switch cabinet.
Prior to start-up and even for brief measurements or tests, connect the protective earth
conductor (ground conductor) of all of the electrical devices in accordance with the circuit
diagram (see section 5
Electrical installation on page 26) in a fixed manner (hardwiring) to
the supply network or to the earthing system on site.
Comply with the minimum copper cross-section for the protective earth conductor (ground
conductor) over its entire length (see EN 61800-5-1). Otherwise, the housing may carry
high voltages which can cause electric shock.
With mains-powered servocontrollers (BL 4100-M / BL 4100-D) ), the leakage current is
greater than 3.5 mA due to the integrated mains filters. Therefore, two separate protective
earth connection points must be hard-wired for these units.
The magnitude of the DC bus voltage must be taken into consideration during the
installation process in order to ensure proper insulation and protection. Ensure proper
earthing (grounding), conductor rating and protection against short circuits.
Mounting Instructions BL 4000-M and BL 4000-D Page 14 of 95