FS232 Watchdog relay is used to monitor the square wave signals generated by the industrial control computer (such as DC:5V or DC:24V).

When the pulse width of the measuredsignal (1ms~10s) is wider than the first preset value , the watchdog relay will output the first signal which is transmitted to control system or emergency stop switch.

When the pulse width of the measured signal (1s~10000s) is wider than the second preset value, the watchdog relay will output the second signal for cutting off the power supply and resetting IPC.

FS232 Watchdog Relay

Supply Voltage
Supply Power
Auxiliary Power Output
Working Temperature
Storage Temperature
Ambient Humidity
Storage Humidity
Protection Class
EMC

Installation
Size
Weight

DC24V (18V ~ 30V)
2W
DC24V (18V ~ 30V)
-40°C to +80°C
-45°C to +85°C
≤95%RH, no condensation
20% ~ 75%RH
IP20
GB/T 17626.2 (Ⅲ)
GB/T 17626.4 (Ⅲ)
GB/T 17626.5 (Ⅲ)
35mm rail mounting
75mm × 45mm × 50mm
≤200g

☼  General Parameters

Pulse Input +24V
Pulse Input +5V
Pulse Width
Measurement Error
Time Length

Contact Current Capacity
On-resistance

☼  Measured Signal Parameter

low level<4V, high level>10V
low level<1.2V, high level>3.6V
1ms ~ 10s
±10% based upon the preset value
first channel:1ms ~ 10s;
second channel:1s ~ 10000s
6A 250Vac/30Vdc
0.2Ω