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Sigma II User's Manual
2.2 Servo Amplifiers
The SGDH servo amplifiers are base-mounted servoamps. Incorrect installation will
cause problems. Follow the installation instructions below.
2.2.1
Storage Conditions
Store the servo amplifier within the following temperature range, as long as it is
stored with the power cable disconnected.
-20 to 85°C
2.2.2
Installation Site
The following precautions apply to the installation site.
Situation
Installation in a Control
Panel
Installation Near a Heat-
ing Unit
Installation Near a
Source of Vibration
Installation at a Site
Exposed to Corrosive
Gas
Other Situations
YASKAWA
200V
SERVOPACK
SGDH-
MODE/SET
DATA/
POWER
CHARGE
L1
C
N
L2
3
L3
1
2
C
N
1
L1C
L2C
B1
B2
B3
C
U
N
2
V
W
Sigma II series servo amplifier
Installation Precaution
Design the control panel size, unit layout, and cooling
method so the temperature around the servo amplifier does
not exceed 55°C.
Minimize heat radiated from the heating unit as well as any
temperature rise caused by natural convection so the tem-
perature around the servo amplifier does not exceed 55°C.
Install a vibration isolator beneath the servo amplifier to
avoid subjecting it to vibration.
Corrosive gas does not have an immediate effect on
the servo amplifier, but will eventually cause elec-
tronic components and contactor–related devices to
malfunction. Take appropriate action to avoid corro-
sive gas.
Do not install the servo amplifier in hot and humid
locations or locations subject to excessive dust or iron
powder in the air.
2-6
Chapter 2: Installation
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