Specifications - Citizen SA-SD Operation Manual

9. Specifications

9-1 Specifications
Type
NPN
Model
PNP
Number of connectable
units
Power voltage
Current consumption
(Note 2)
Current output range: 4 to 20 mA F.S.
(Default)
Analog current output
Output during error: 0 mA
(Note 3)
Linearity: ±0.25% F.S.
Load impedance: 250 Ω MAX.
[NPN output type]
NPN open-collector transistor
Maximum inflow current: 50 mA (Note 4)
Applied voltage: 30 VDC or lower (output – 0 V)
Residual voltage: 1.5 V or lower (at inflow current: 50 mA)
Leakage current: 0.1 mA or less
Output
[PNP output type]
PNP open-collector transistor
• Maximum outflow current: 50 mA (Note 4)
• Applied voltage: 30 VDC or lower (output – +V)
• Residual voltage: 1.5 V or lower (at outflow current: 50 mA)
• Leakage current: 0.1 mA or less
Short-circuit
protection
Judgment output
Alarm output
Output 1/Output 2/Output 3 can be switched between "HI/GO/LO," "HI
External output
or LO/IN RANGE/ALARM," and "LO/HI/ALARM."
[NPN output type]
Non-contact input or NPN open-collector transistor
• Input condition:
• Input impedance:
Input
[PNP output type]
Non-contact input or PNP open-collector transistor
• Input condition:
• Input impedance:
Trigger input
Preset input
Reset input
Bank input A/B
Input 1/Input 2/Input 3 can be switched between "Preset/Reset/Trigger"
External input
and "Bank input A/Bank input B/Selection (Preset, Reset, or Trigger)."
Master unit
High performance type
SA-SD1AP SA-SD1AC
SA-SD1AP-P SA-SD1AC-P
Up to 15 slave units to one master unit
24 VDC ±10% Including ripple of 0.5 V (P-P)
70 mA or less (when connected to sensor heads)
Incorporated (automatic recovery)
NO/NC
Open when alarm activated
Ineffective (+8 V to +VDC or open)
Effective (0 to +1.2 VDC)
Approx. 10 kΩ
Ineffective (0 to +0.6 VDC or open)
Effective (+4 V to +VDC)
Approx. 10 kΩ
Input duration: 2 ms or longer (ON)
Input duration: 20 ms or longer (ON)
Input duration: 20 ms or longer (ON)
Input duration: 20 ms or longer (ON)
9- 1
Slave unit
Standard type Wire saving type
SA-SD1C
SA-SDNC
SA-SD1C-P
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