Safety notes for electrical drives and controllers
Page 13
Product Manual / Mounting Instructions
„Servo drives ARS 2320 FS, ARS 2340 FS and ARS 2360W FS“
Version 1.0
2.6.3 Protection against contact with electrical parts
This section only concerns devices and drive components carrying voltages exceeding 50 V. Contact with
parts carrying voltages of more than 50 V can be dangerous for people and may cause electrical shock.
During operation of electrical devices some parts of these devices will inevitably carry dangerous
voltages.
DANGER!
High electrical voltage!
Danger to life, danger due to electrical shock or serious personal injury!
The appropriate DIN, VDE, EN and IEC regulations as well as all national and local safety regulations and
rules for the prevention of accidents apply for the assembly and maintenance of the system. The plant
engineer or the operator is responsible for compliance with these regulations:
Before switching on the device, install the appropriate covers and protections against accidental
contact. Rack-mounted devices must be protected against accidental contact by means of a
housing, for example a switch cabinet. The national regulations for safety/accident prevention must
be complied with!
Always connect the ground conductor of the electrical equipment and devices securely to the
mains supply. Due to the integrated line filter the leakage current exceeds 3.5 mA!
Comply with the minimum copper cross-section for the ground conductor over its entire length (see
for example EN 60800-5-1).
Prior to the initial operation, even for short measuring or testing purposes, always connect the
ground conductor of all electrical devices as per the terminal diagram or connect it to the ground
wire. Otherwise the housing may carry high voltages which can cause electrical shock.
Do not touch electrical connections of the components when switched on.
Prior to accessing electrical parts carrying voltages exceeding 50 Volts, disconnect the device from
the mains or power supply. Protect it from being switched on again.
For the installation the amount of DC bus voltage must be considered, particularly regarding
insulation and protective measures. Ensure proper grounding, wire dimensioning and
corresponding short-circuit protection.
The device comprises a rapid discharge circuit for the DC bus as per EN 60204-1. In certain
device constellations, however, mostly in the case of parallel connection of several servo drives in
the DC bus or in the case of an unconnected brake resistor, this rapid discharge may be rendered
ineffective. The servo drives can carry voltage until up to 10 minutes after being switched off
(residual capacitor charge).
