diff --git a/Inc/actuator.h b/Inc/actuator.h
index 2ae0540..3ce43e3 100644
--- a/Inc/actuator.h
+++ b/Inc/actuator.h
@@ -5,6 +5,8 @@
 #include "gd32e23x.h"
 #include "stdbool.h"
 
+#define ACTUARTOR_PERIOD_MAX  1000u
+
 void actuator_init(void);
 
 void actuator_output(actuator_channel_t channel, uint16_t duty, actuator_direction_t direction);
diff --git a/Src/actuator.c b/Src/actuator.c
index b4fc120..4b2e125 100644
--- a/Src/actuator.c
+++ b/Src/actuator.c
@@ -68,7 +68,7 @@ void actuator_init(void) {
 
 void actuator_output(actuator_channel_t channel, uint16_t duty, actuator_direction_t direction) {
 
-    if (duty > 999) duty = 999; // Limit duty cycle to max value
+    if (duty > ACTUARTOR_PERIOD_MAX) duty = ACTUARTOR_PERIOD_MAX; // Limit duty cycle to max value
 
     if (direction != DIRECTION_PUSH && direction != DIRECTION_PULL) {
         // Invalid direction, handle error if necessary
@@ -86,7 +86,7 @@ void actuator_output(actuator_channel_t channel, uint16_t duty, actuator_directi
         } else if (direction == DIRECTION_PULL) {
             SEGGER_RTT_printf(0, "[ACTUATOR] Actuator CH1 PULL with duty %d\n", duty);
             gpio_bit_set(ACTUATOR_CH1_GPIO_PORT, ACTUATOR_CH1_GPIO_PIN);   // Set direction HIGH
-            timer_channel_output_pulse_value_config(ACTUATOR_PWM_TIMER, ACTUATOR_CH1_PWM_TIMER_CH, (999 - duty));
+            timer_channel_output_pulse_value_config(ACTUATOR_PWM_TIMER, ACTUATOR_CH1_PWM_TIMER_CH, (ACTUARTOR_PERIOD_MAX - duty));
         }
     } else if (channel == ACTUATOR_CH2) {
         if (direction == DIRECTION_PUSH) {
@@ -96,7 +96,7 @@ void actuator_output(actuator_channel_t channel, uint16_t duty, actuator_directi
         } else if (direction == DIRECTION_PULL) {
             SEGGER_RTT_printf(0, "[ACTUATOR] Actuator CH2 PULL with duty %d\n", duty);
             gpio_bit_set(ACTUATOR_CH2_GPIO_PORT, ACTUATOR_CH2_GPIO_PIN);   // Set direction HIGH
-            timer_channel_output_pulse_value_config(ACTUATOR_PWM_TIMER, ACTUATOR_CH2_PWM_TIMER_CH, (999 - duty));
+            timer_channel_output_pulse_value_config(ACTUATOR_PWM_TIMER, ACTUATOR_CH2_PWM_TIMER_CH, (ACTUARTOR_PERIOD_MAX - duty));
         }
     } else {
         // Invalid channel, handle error if necessary
@@ -110,17 +110,17 @@ void actuator_output(actuator_channel_t channel, uint16_t duty, actuator_directi
 void actuator_stop(actuator_channel_t channel) {
     if(channel == ACTUATOR_CH1) {
         SEGGER_RTT_printf(0, "[ACTUATOR] Stopping Actuator CH1\n");
-        timer_channel_output_pulse_value_config(ACTUATOR_PWM_TIMER, ACTUATOR_CH1_PWM_TIMER_CH, 999);    // Ensure CH1 is off
+        timer_channel_output_pulse_value_config(ACTUATOR_PWM_TIMER, ACTUATOR_CH1_PWM_TIMER_CH, ACTUARTOR_PERIOD_MAX);    // Ensure CH1 is off
         gpio_bit_set(ACTUATOR_CH1_GPIO_PORT, ACTUATOR_CH1_GPIO_PIN); // Set CH1 direction High
     } else if(channel == ACTUATOR_CH2) {
         SEGGER_RTT_printf(0, "[ACTUATOR] Stopping Actuator CH2\n");
-        timer_channel_output_pulse_value_config(ACTUATOR_PWM_TIMER, ACTUATOR_CH2_PWM_TIMER_CH, 999);    // Ensure CH2 is off
+        timer_channel_output_pulse_value_config(ACTUATOR_PWM_TIMER, ACTUATOR_CH2_PWM_TIMER_CH, ACTUARTOR_PERIOD_MAX);    // Ensure CH2 is off
         gpio_bit_set(ACTUATOR_CH2_GPIO_PORT, ACTUATOR_CH2_GPIO_PIN); // Set CH2 direction High
     } else {
         // Invalid channel, handle error if necessary
         SEGGER_RTT_printf(0, "[ACTUATOR] Invalid channel specified for stop: %d\n", channel);
-        timer_channel_output_pulse_value_config(ACTUATOR_PWM_TIMER, ACTUATOR_CH1_PWM_TIMER_CH, 999);    // Ensure CH1 is off
-        timer_channel_output_pulse_value_config(ACTUATOR_PWM_TIMER, ACTUATOR_CH2_PWM_TIMER_CH, 999);    // Ensure CH2 is off
+        timer_channel_output_pulse_value_config(ACTUATOR_PWM_TIMER, ACTUATOR_CH1_PWM_TIMER_CH, ACTUARTOR_PERIOD_MAX);    // Ensure CH1 is off
+        timer_channel_output_pulse_value_config(ACTUATOR_PWM_TIMER, ACTUATOR_CH2_PWM_TIMER_CH, ACTUARTOR_PERIOD_MAX);    // Ensure CH2 is off
         gpio_bit_set(ACTUATOR_CH1_GPIO_PORT, ACTUATOR_CH1_GPIO_PIN); // Set CH1 direction High
         gpio_bit_set(ACTUATOR_CH2_GPIO_PORT, ACTUATOR_CH2_GPIO_PIN); // Set CH2 direction High
     }
diff --git a/Src/command.c b/Src/command.c
index 07ccd6d..e648f06 100644
--- a/Src/command.c
+++ b/Src/command.c
@@ -458,7 +458,7 @@ void handle_command(const uint8_t *frame, uint8_t len) {
                         return;
                     }
 
-                    if (p_val > (uint32_t)ACTUATOR_CH2 || s_val > 999u) {
+                    if (p_val > (uint32_t)ACTUATOR_CH2 || s_val > ACTUARTOR_PERIOD_MAX) {
                         send_response(RESP_TYPE_PARAM_ERR, s_report_status_err, sizeof(s_report_status_err));
                         return;
                     }
@@ -480,7 +480,7 @@ void handle_command(const uint8_t *frame, uint8_t len) {
                         return;
                     }
 
-                    if (p_val > (uint32_t)ACTUATOR_CH2 || s_val > 999u) {
+                    if (p_val > (uint32_t)ACTUATOR_CH2 || s_val > ACTUARTOR_PERIOD_MAX) {
                         send_response(RESP_TYPE_PARAM_ERR, s_report_status_err, sizeof(s_report_status_err));
                         return;
                     }