3 Nomenclature and Functions
3-22
CJ2 CPU Unit Hardware User’s Manual
Insulation resistance 20 MΩ min.
(at 500 VDC)
between AC
external and GR
terminals
*3
• 20 MΩ min.
(at 500 VDC)
between all
external termi-
nals and GR
terminal
*3
, and
between all
alarm output
terminals.
• 20 MΩ min.
(at 250 VDC)
between all
alarm output
terminals and
GR terminal
*3
.
20 MΩ min.
(at 500 VDC)
between AC
external and GR
terminals
*3
20 MΩ min.
(at 500 VDC)
between DC
external and GR
terminals
*3
---
*6
Dielectric strength
*4
2,300 VAC
50/60 Hz for 1 min
between AC
external and GR
terminals
*3
Leakage current:
10 mA max.
• 2,300 VAC,
50/60 Hz for
1 min between
all external ter-
minals and GR
terminal
*3
and
between all
alarm output
terminals with a
leakage current
of 10 mA max.
• 1,000 VAC,
50/60 Hz for
1 min between
all alarm output
terminals and
GR terminal
*3
with a leakage
current of
10 mA max.
2,300 VAC
50/60 Hz for 1 min
between AC
external and GR
terminals
*3
Leakage current:
10 mA max.
1,000 VAC
50/60 Hz for 1 min
between DC
external and GR
terminals
*3
Leakage current:
10 mA max.
---
*6
1,000 VAC 50/60 Hz for 1 min between DC external and GR terminals
*3
Leakage current: 10 mA max.
Noise immunity 2 kV on power supply line (Conforms to IEC61000-4-4.)
Vibration resistance
5 to 8.4 Hz, 3.5-mm amplitude, 8.4 to 150 Hz, acceleration: 9.8 m/s
2
in X, Y, and Z directions for
100 minutes (Time coefficient: 10 minutes × coefficient factor 10 = total time 100 min.) (according to
JIS C60068-2-6)
Shock resistance
147 m/s
2
3 times each in X, Y, and Z directions (Relay Output Unit: 100 m/s
2
) (according to JIS
C60068-2-27)
Ambient operating
temperature
0 to 55°C
Ambient operating
humidity
10% to 90% (with
no condensation)
10% to 90% (with
no condensa-
tion)
*5
10% to 90% (with no condensation)
Atmosphere Must be free from corrosive gases.
Ambient storage tem-
perature
−20 to 75°C
(excluding bat-
tery)
−20 to 75°C
*5
−20 to 75°C (excluding battery)
Item Specifications