Program master clock

- Automatic summer/winter time adjustment.
- Automatically resets correct time after e.g. a power outage.
- Pulse output for synchronizing clocks.
- Relay output for controlling fans, illumination, alarms, break signals etc.

WDP-Y2, WDP-Y4, WDP-Y8

Program master clock Impulse Timecode School School Industry Industry

General
The program master clock is a combination of an annual program clock with 4, 2 or 8 outputs for controlling various energy consumers and a master clock for operating slave clocks with pulse outputs.

It has a preprogrammed annual calendar/almanac with the year’s public holidays already entered.

The type of communication that synchronize the slave clock is chosen in the master clock, e.g. 24 VDC pole-switching minute impulses, Time code or NTP if the Ethernet card option is built into the master clock.

For extra accuracy, an external signal receiver e.g. GPS can be connected to the master clock.

Power failure
In the event of a power failure, the master clock retains its settings for up to 72 hours. If power is restored within this period, the master clock automatically resets all clocks in the system.

Relay outputs
A total of 800 control functions can be programmed across 2, 4 or 8 outputs. Repeating a daily function on a given output requires only 1 control function.

Further relay outputs (total 64) can be added by supplementing the program master clock with one or more expansion units.

	WDP-Y2	WDP-Y4	WDP-Y8
Automatic summer/winter time:	Yes	Yes	Yes
Power supply:	24 VDC / 230 VAC	24 VDC / 230 VAC	24 VDC / 230 VAC
Max load, impulse output:	1x 1A	1x 1A	1x 1A
Max load, relay output:	2x 230 VAC, 6A	4x 230 VAC, 6A	8x 230 VAC, 6A
Impulse memory:	72 hours	72 hours	72 hours
Program memory:	>100 years	>100 years	>100 years
Ambient temperature:	0°C to +40°C	0°C to +40°C	0°C to +40°C
Protection class:	IP65	IP65	IP65
Dimensions WxHxD:	190x160x103 mm	280x218x153 mm	280x218x153 mm
Weight:	1.0 kg 24 VDC	1.1 kg 24 VDC	1.2 kg 24 VDC
	1.4 kg 230 VAC	1.5 kg 230 VAC	1.7 kg 230 VAC