© Panasonic Industrial Devices SUNX Co., Ltd. 2016
118
Specifications / Dimensions
Model No.
SF-C21
Interlock function
Incorporated
Lockout release function
Incorporated
External device monitor function
Incorporated
Communication function
(MODBUS RTU)
• Interface: RS-485
• Protocol: MODBUS RTU
• Maximum transmission distance: 100m
• Maximum number of units that can be connected: 8 units (slaves)
Logic selection function
• No.0: Customizable logic
• No.1: Overall stop control
• No.2: Parallel muting control
• No.3: Sequential muting control
• No.4: Partial stop control 1
• No.5: Partial stop control 2
• No.6: Two-hand control
• No.7: OR control
• No.8: Operation mode selection control
Logic setting function
Input mode, control mode, output mode, reset mode, auxiliary output mode
Protection structure
IP20 (IEC) (Must surely be installed within a control panel whose protection
structure is IP54 or more)
Working ambient temperature
-10 to +55°C (No dew condensation or icing allowed), Storage: -25 to +60°C
Working ambient humidity
30 to 85%RH, Storage: 30 to 85%RH
Voltage withstandability
1,000V AC for one min.
All inputs connected together- USB port, all inputs connected together-
RS-485 port, USB port - RS-485 port
Between all supply terminals connected together and enclosure, all out-
puts connected together - all input connected together, all outputs con-
nected together - USB port
All outputs connected together - RS-485 port
Insulation resistance
20MΩ or more with 500V DC mega
All inputs connected together- USB port, all inputs connected together-
RS-485 port, USB port - RS-485 port
Between all supply terminals connected together and enclosure, all out-
puts connected together - all input connected together, all outputs con-
nected together - USB port
All outputs connected together - RS-485 port
Vibration resistance
5 to 8.4Hz half amplitude of 3.5mm, 8.4 to 150Hz acceleration of 9.8m/s
2
(1G) (in X, Y and Z directions for two hours each) (IEC / EN 60068-2-6)
Shock resistance
147m/s
2
(15G) 11ms in X, Y and Z directions for three times each
(IEC / EN 60068-2-27)
Pollution degree
2
Overvoltage category
II
Usable altitude
2,000m or less
Startup time after power on
2 sec. or less
PFH
D
(Probability of dangerous
failure per hour)
3.09 × 10
-10
MTTF
d
(Mean time to dangerous failure)
100 years or more
DC
avg
99%
SFF (Probability of safe failure)
99%
HFT (Hardware fault tolerance)
1
Subsystem type
Type B (IEC 61508-2)
Mission time
20 years
Maximum cable length
100m
Connection method
Input / output and power supply: Detachable spring cage terminal blocks
RS-485: Detachable spring cage terminal block
USB: MiniB male