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DIP Switch Settings
The Power ON lock time, rated voltage are set using the DIP switch located on the front of the Unit.
The K8DT-PZ@ does not have SW2.
Note: Open the DIP switch cover to set the DIP switch.
Keep the DIP switch cover closed while the power supply to the Relay is ON.
SW4
SW3
DIP switch pins
SW2
SW1
Setting Methods
Asymmetry
The asymmetry rate is set using the asymmetry rate knob (ASY).
The setting range is 5% to 22% of the rated input.
To correctly detect asymmetry, set the asymmetry rate knob to a value that is equal to or less than the overvoltage/undervoltage set value. If
you set it to a value that is greater than the overvoltage/undervoltage set value, overvoltage/undervoltage detection will operate first, and
asymmetry alarms will not be output.
If the knob is turned with an input applied to the input terminals, the alarm indicator will flash when the set value equals the input value.
Use this as a guide to make the setting.
The rated input depends on the model and the DIP switch setting.
Example: K8DT-PZ1 with DIP switch Set to 200 V
The rated input is 200 VAC, so the setting range is 10 to 44 V.
If you set the setting knob (ASY) to 10%, the asymmetry operating voltage would be 20 V and an alarm would be output when the
difference between the highest and lowest phase-to-phase voltages exceeds 20 V.
Overvoltage/Undervoltage
Overvoltage/Undervoltage is set using the overvoltage/undervoltage knob (OV/UV).
The setting range is 2% to 30% of the rated input for overvoltage detection and −2% to −30% of the rated input for an undervoltage detection.
Use this as a guide to make the setting.
The rated input depends on the model and the DIP switch setting.
Example: K8DT-PZ1 with DIP Switch Set to 200 V
The rated input is 200 VAC, so the setting range is 204 to 260 V for overvoltage detection and 140 to 196 V for undervoltage detection.
Operating Time
The operating time is set using the operating time knob (T).
The operating time can be set to between 0.1 and 30 s.
If the input exceeds (or drops lower than) the voltage set value, the alarm indicator will start flashing for the set period and then stay lit.
DIP switch pins
K8DT-PZ1
❍ ↑
ON
Pin
● ↓
OFF
5 s
Power ON
lock time
1 s
240 V
230 V
Rated voltage
220 V
200 V
Note: All pins are set to OFF at the factory.
K8DT-PZ2
❍ ↑
ON
Pin
● ↓
OFF
5 s
Power ON
lock time
1 s
480 V
415 V
Rated voltage
400 V
380 V
Note: All pins are set to OFF at the factory.
1
2
ON
OFF
❍
●
---
Not used.
---
---
---
1
2
ON
OFF
❍
●
---
Not used.
---
---
---
K8DT-PZ
4
3
---
---
---
---
❍
❍
❍
●
❍
●
●
●
4
3
---
---
---
---
❍
❍
❍
●
❍
●
●
●
5
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