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Notes on suppressing interference voltage, using suppressor diodes, and employing isolating relays for inductive loads.
Programming switching times using weekday blocks or single days.
Details on the 16 memory spaces per channel (8 ON/8 OFF).
How the processor establishes the circuit state based on program or manual changes.
Step-by-step reading of programmed ON/OFF switching times.
Correcting and transferring modified switching points to memory.
Making specific time entries ineffective via partial deletion.
Deleting all stored switching times and current time using the 'Res' key.
This document describes the operating instructions for the GRASSLIN V 86/1 digi 16 M2 and V 86/2 digi 32 M2 digital/electronic time switches. These devices are designed for simple and logical operation, allowing users to program them in a straightforward manner. The instructions apply to both the 1-channel and 2-channel versions of the time switch.
The GRASSLIN time switch functions as a weekly clock, enabling users to assign switching times to single days or blocks of days. It features a memory capacity of 16 spaces per channel, with 8 switching pairs (8 ON and 8 OFF) available per channel. The device's electronic circuitry is designed to be highly resistant to external interference, though users are advised to take precautions against strong superimposed interference voltage peaks, especially when switching contactors.
The time switch supports various weekday blocks for programming: Monday-Sunday (Mo....Su), Monday-Friday (Mo....Fr), and Saturday-Sunday (Sa + Su). Single-day programming is also possible. If both channels are intended to switch at the same time (ON or OFF), these switching times must be entered individually for each channel.
A key feature of the time switch is its ability to manage switching commands dynamically. Whenever the program or time (e.g., summer/winter time switchover) is altered, or if there is manual intervention, the processor interrogates all memory locations to establish the circuit state that corresponds to the current status according to the program.
Installation and Safety: Installation of the time switch must be carried out by a skilled electrician, in accordance with VDE 0105. To ensure optimal operational safety, specific connection guidelines must be followed. For large systems, it is necessary to suppress interference voltage on contactor coils switched directly by the time switch, using a suitable varistor or RC element. If inductive DC loads are switched, a suppressor diode must be installed. For inductive loads, particularly fluorescent lamps, which place a heavy strain on output contacts, an isolating relay or a contactor should be used.
Display and Indicators: The LCD display unit provides a comprehensive overview of various data and information. It includes a time identifier, AM/PM version, hour and minute display, current time or switching time, circuit preselection ON for channel 1, and continuous operation OFF for channel 2. During normal operation, a colon flashes between the hour and minute display. The display also shows the day of the week, summer time identifier, and channel status (ON/OFF) for both clock operation and programming.
Setting Current Time: Upon initial operation, the time switch battery may be empty, and it can take up to 2 minutes for the display segments to light up as the battery charges. To enter the current time, users must press the "clock" key in combination with the "Day," "h+," and "m+" keys. The "Day" key is used for entering the current day of the week, "h+" for hours, and "m+" for minutes. The entry of day, hour, and minute can be made in any sequence. If the current time falls within the 6 months of summer, pressing the "+1h" key will advance the time by 1 hour, and the identifier "+1h" will appear on the display. If the "h+" and "m+" keys are pressed for longer than 2 seconds, a fast-forward (roll mode) is initiated.
Programming Switching Times: Switch-on and switch-off times for each channel are initiated and concluded using the CH 1 and CH 2 keys. Pressing these keys alternately displays the memory space for an ON command followed by the memory space for an OFF command. After individual switching times are entered, they are transferred to memory using the CH 1, CH 2, or "clock" key. The corresponding switch-off times are programmed in the same manner. If the programming procedure is interrupted for approximately 1 to 2 minutes, the display reverts to the current time, and the display contents are automatically stored in memory. Partial entries, such as only hours, are transferred to memory but are not effective as a switching command.
Manual Switching of Channels: Channels can be manually switched using the 1 and 2 buttons. Pressing once toggles between [ON] or [OFF]. Subsequent presses will cycle through [ON] and [OFF] states, eventually returning to automatic operation. A channel manually set to ON or OFF will automatically revert to automatic operation at the next scheduled switching time. The status [ON] and [OFF] can only be reset to automatic operation by pressing the "clock" button.
Reading, Changing, Deleting, and Resetting:
Summer/Winter Time Switchover: The device supports summer/winter time switchover, which can be selected using the "+ 1 h" key.
Sealing: The device is designed to be sealable, which can be important for tamper prevention or regulatory compliance.
General| Operating Voltage | 230 V AC |
|---|---|
| Number of Channels | 1 |
| Memory Locations | 16 |
| Number of Programs | 16 |
| Battery Backup | Yes |
| Protection Class | IP20 |
| Type | Digital Time Switch |
| Frequency | 50 Hz |
| Contact Type | SPDT |
| Mounting Type | DIN Rail |
| Switching Capacity | 16A |
| Program Type | Weekly |
